PC Resolution 2025-007 SilverRock Resort EA 2025-0002 (EA 2002-453 Addendum No.3)PLANNING COMMISSION RESOLUTION NO. 2025 - 007
A RESOLUTION OF THE PLANNING COMMISSION OF
THE CITY OF LA QUINTA, CALIFORNIA,
RECOMMENDING THAT THE CITY COUNCIL ADOPT
ADDENDUM NO. 3 TO THE PREVIOUSLY ADOPTED
MITIGATED NEGATIVE DECLARATION (EA2002-453)
PURSUANT TO SECTION 15164 OF THE CALIFORNIA
ENVIRONMENTAL QUALITY ACT IN THAT NO
SUBSTANTIAL CHANGES TO THE PROJECT ARE
PROPOSED THAT RESULT IN NEW SIGNIFICANT
ENVIRONMENTAL EFFECTS.
CASE NUMBER:
ENVIRONMENTAL ASSESSMENT 2025-0002
PROJECT: SILVERROCK RESORT
APPLICANT: TBE RE ACQUISITION CO II LLC.
(SUBSIDIARY OF TURNBRIDGE EQUITIES)
WHEREAS, the Planning Commission of the City of La Quinta, California, did, on
September 9, 2025, hold a duly noticed Public Hearing to consider a request by TBE RE
Acquisition Co II LLC., subsidiary of Turnbridge Equities, for approval of a Reinstated and
Amended Development Agreement for the SilverRock Resort (2025 SilverRock Master
Plan), relating to real property south of Avenue 52, west of Jefferson Street, with Assessor
Parcel Numbers:
770-260-037; 776-150-029, -030; 777-060-008, -010, -011, -019, -020, -062, -070, -071,
-072, -074, -075, -078, -079, -080, -081, -082, -083, -084, -085; 777-490-023, -024, -
035, -037, -039, -042, -046, -047, -048, -049, -050, -053, -054, -055, -057, -058, -059, -
060, -061, -062, -063, -064, -065, -066, -067, -068, -069, -070, -071, -072, -073, -074, -
075, -076, -077, -078, -079, -080; 777-510-001, -002, -003, -004, -005, -006, -007, -008,
-009, -010, -011, -012, -013, -014, -015, -016, -017, -018, -019, -020, -021, -022, -023, -
024, -025; 777-520-001, -002, -003, -004, -005, -006, -007, -008, -009, -010, -011, -012,
-013, -014, -015, -016, -017, -018
WHEREAS, the Design and Development Department published a public hearing
notice in The Desert Sun newspaper on August 29, 2025, as prescribed by the Municipal
Code. Public hearing notices were also mailed to all property owners within 500 feet of
the site and emailed or mailed to all interested parties who have requested notification
relating to the project; and
WHEREAS, at said Public Hearing, upon hearing and considering all testimony
and arguments, if any, of all interested persons desiring to be heard, the Planning
PLANNING COMMISSION RESOLUTION NO. 2025 — 007
ENVIRONMENTAL ASSESSMENT 2025-0002
PROJECT: SILVERROCK RESORT
LOCATION: SOUTHWEST CORNER OF AVENUE 52 AND JEFFERSON STREET
APPLICANT: TBE RE ACQUISITION CO II LLC., SUBSIDIARY OF TURNBRIDGE EQUITIES
ADOPTED: SEPTEMBER 9, 2025
PAGE: 2 of 3
Commission did make the following mandatory findings pursuant to the California
Environmental Quality Act to justify approval of Environmental Assessment 2025-0002
(Addendum No. 3 to EA2002-453) [Exhibit A]
The proposed project will not have the potential to degrade the quality of the
environment, substantially reduce the habitat of a fish or wildlife population to drop
below self-sustaining levels, threaten to eliminate a plant or animal community,
reduce the number, or restrict the range of rare or endangered plants or animals,
or eliminate important examples of the major periods of California history or
prehistory. Potential impacts can be mitigated to be less than significant levels with
implementation of mitigation measures included in Previous Assessments.
2. The proposed project will not result in impacts which are individually limited or
cumulatively considerable when considering planned or proposed development in
the immediate vicinity. Potential impacts can be mitigated to be less than
significant levels.
3. The proposed project will not have environmental effects that will adversely affect
the human population, either directly or indirectly. Potential impacts are equivalent
to or less than those identified in Previous Assessments, and with the
implementation of mitigation measures included in those Previous Assessments,
can be mitigated to be less than significant.
NOW, THEREFORE, BE IT RESOLVED by the Planning Commission of the City
of La Quinta, California, as follows:
SECTION 1. That the above recitations are true and constitute the Findings of
the Planning Commission in this case.
SECTION 2. That the Planning Commission has reviewed the Addendum to the
SilverRock Specific Plan Initial Study and Mitigated Negative Declaration (EA2014-0001),
and finds that the Development Agreement's impacts have been analyzed and compared
to the adopted Mitigated Negative Declaration, and that none of the conditions cited in
CEQA Guidelines Section 15162 occur, and therefore, consistent with CEQA Guidelines
15164, an Addendum is appropriate to analyze the impacts of the Development
Agreement. Based on the analysis of the Addendum, all environmental impacts can be
mitigated to less than significant levels, consistent with the mitigation measures provided
in EA2002-453 and subsequent Addenda.
SECTION 2. That it does hereby recommend approval of Environmental
Assessment 2025-0002 for the reasons set forth in this Resolution.
PLANNING COMMISSION RESOLUTION NO. 2025 — 007
ENVIRONMENTAL ASSESSMENT 2025-0002
PROJECT: SILVERROCK RESORT
LOCATION: SOUTHWEST CORNER OF AVENUE 52 AND JEFFERSON STREET
APPLICANT: TBE RE ACQUISITION CO II LLC., SUBSIDIARY OF TURNBRIDGE EQUITIES
ADOPTED: SEPTEMBER 9, 2025
PAGE: 3 of 3
PASSED, APPROVED, and ADOPTED at a regular meeting of the City of La
Quinta Planning Commission, held on September 9, 2025, by the following vote:
AYES: Commissioners Bohlinger, Guerrero, Hundt, McCune, Nieto and
Chairperson Hassett
NOES: None
ABSENT: Commissioner Hernandez
ABSTAIN: None
w
DOU HASSETT, Chairpers6n
City of La Quinta, California
ATTEST:
ok' 4(�
CHERI FLORES, Interim Design and Development Director
City of La Quinta, California
PLANNING COMMISSION RESOLUTION 2025-007
EXHIBIT A
Addendum to the
ADOPTED
MITIGATED NEGATIVE DECLARATION
SILVERROCK RESORT PROJECT
LA QU I NTA, CALIFORNIA
Prepared for:
City of La Quinta
78-495 Calle Tampico
La Quinta, California 92253
� � 860 Hampshire Road, Suite P
Meridian Westlake Village, CA91361
CbnstlltantS www.meridianconsultantsllc.com
SEPTEMBER 2025
Section Page
Tableof Contents............................................................................................................... i
1.0 Introduction......................................................................................................1.0-3
1.1
Prior Environmental review..............................................................................1.0-3
1.2
Previous Approvals.........................................................................................1.0-5
1.3
Proposed 2025 SilverRock Resort Master Plan.................................................1.0-5
1.4
Purpose of an Addendum................................................................................1.0-6
2.0 Project Description............................................................................................2.0-1
2.1 Project Location.............................................................................................2.0-1
2.2 Project Site Conditions....................................................................................2.0-1
2.3 Project Characteristics...................................................................................2.0-2
3.0 Impact Analysis.................................................................................................3.0-1
3.1
Land Use and Planning....................................................................................3.0-2
3.2
Population and Housing..................................................................................3.0-7
3.3
Geology And Soils...........................................................................................3.0-9
3.4
Water...........................................................................................................3.0-14
3.5
Air Quality.....................................................................................................3.0-18
3.6
Transportation / Circulation..........................................................................3.0-28
3.7
Biological Resources....................................................................................3.0-32
3.8
Energy and Mineral Resources.......................................................................3.0-38
3.9
Hazards and Hazardous Materials.................................................................3.0-40
3.10
Noise............................................................................................................3.0-44
3.11
Public Services.............................................................................................3.0-48
3.12
Utilities and Service Systems.........................................................................3.0-54
3.13
Aesthetics....................................................................................................3.0-61
3.14
Cultural Resources.......................................................................................3.0-66
3.15
Recreation....................................................................................................3.0-69
3.16
Greenhouse Gases.......................................................................................3.0-71
4.0 References.......................................................................................................4.0-1
5.0 Mitigation Monitoring Program...........................................................................5.0-1
Appendices
A Air Quality and Greenhouse Gas Emissions Outputs
Meridian Consultants 1 SilverRock Resort Project Addendum
September 2025
LIST OF FIGURES
Figure Page
1-1 2018 SilverRock Resort Master Plan............................................................................1.0-7
2-1 Regional Location Map...............................................................................................2.0-3
2-2 Project Location.........................................................................................................2.0-4
2-3 Project Site Aerial Photographs...................................................................................2.0-5
2-4 2025 SilverRock Master Plan.......................................................................................2.0-9
3.1-1 General Plan Land Use Map........................................................................................3.0-4
3.1-2 Zoning Map................................................................................................................3.0-5
LIST OF TABLES
Table Page
2-1 Partially Constructed Buildings...................................................................................2.0-2
2-2 Comparative Land Use Summary: Prior Environmental Reviews and the 2025
SilverRock Master Plan...............................................................................................2.0-6
2-3 2018 SilverRock Resort Master Plan Land Use Summary..............................................2.0-7
2-4 2025 SilverRock Master Plan Summary........................................................................2.0-8
3.5-1 Project Construction Schedule.................................................................................3.0-23
3.5-2 Highest Daily Construction Pollutant Emissions........................................................3.0-24
3.5-3 Operational Emissions.............................................................................................3.0-25
3.5-4 Localized Construction and OPerational Emissions...................................................3.0-26
3.6-1 SilverRock Trip Generation Comparison: 2018 vs. 2025 Master Plan...........................3.0-30
3.11-1 School District Generation Rates and STudent Generation.........................................3.0-52
3.11-2 Project School Enrollment and Capacities.................................................................3.0-52
3.16-1 Construction Green House Gas Emissions.................................................................3.0-74
3.16-2 Operational GHG Emissions.....................................................................................3.0-76
Meridian Consultants 11 SilverRock Resort Project Addendum
September 2025
1.0 INTRODUCTION
This Addendum has been prepared to analyze the potential environmental effects associated with
the proposed approval of agreements to implement the approved SilverRock Resort Project (SRR
Project or Project). The City of La Quinta (City) is proposing to approve a Reinstated and Amended
Development Agreement, an Option Agreement for the Phase 2 Land, a Transient Occupancy Tax
revenue sharing agreement, and ancillary agreements or amendments to recorded covenants. The
first phase of development currently proposed includes a 154-room Luxury Resort Hotel with
supporting facilities, 192 single-family and condominium resort residential units and a new
clubhouse for the existing public golf course in Planning Areas 2-7. Subsequently, approval of Site
Development Permits (SDPs), amendments to previously approved SDPs, subdivision maps and
other implementing approvals, will be requested to develop the 2025 SilverRock Master Plan Project
(2025 Project; Project), which would allow the development of resort, recreational,
retail/commercial, and residential uses as permitted by the SilverRock Resort Specific Plan as
approved by the City for the SilverRock Resort site.
1.1 PRIOR ENVIRONMENTAL REVIEW
The SilverRock Resort Project has been reviewed bythe City of La Quinta in a series of environmental
review documents prepared since 2002, including a 2002 Mitigated Negative Declaration (MND), and
Addenda to the Adopted MND in 2006 and 2014 (Previous Assessments). Background information on
these Previous Assessments and approvals is presented below.
1.1.1 2002 Mitigated Neqative Declaration (2002 MND)
In 2002, an Environmental Assessment (EA 2002-453) was prepared supporting the adoption of a
Mitigated Negative Declaration (2002 MND) evaluating the acquisition of the 707-acre SilverRock
Resort site by the City of La Quinta Redevelopment Agency. The site was acquired to meet the City's
goals of providing public recreation and generating recurring revenue by facilitating resort -oriented
development. The 2002 MND evaluated a master development plan that included two 18-hole public
golf courses, a hotel with a conference center, a clubhouse, timeshare or condo -hotel units, and
supporting commercial uses. Approximately 160 acres of the western portion of the site within the
Santa Rosa Mountains were identified for permanent preservation as open space. Following the
adoption of the 2002 MND, the City constructed and opened the Arnold Palmer Classic Golf Course
in 2005 on approximately 173 acres of the site.
I.I.Z 200b Addendum
In 2006, the City of La Quinta approved the SilverRock Resort Specific Plan to guide the phased
development of approximately 546 acres of the SilverRock site with resort uses. An Addendum to the
2002 MND (2006 Addendum) was prepared to evaluate the proposed Specific Plan.
Meridian Consultants 1 .0-3 SilverRock Resort Project Addendum
September 2025
1.0—Introduction
The Specific Plan was prepared by the City to ensure quality development consistent with the goals,
objectives, and policies of the City's General Plan. The Specific Plan defines the location, type, and
amount of development allowed within the Specific Plan Area, while providing a degree of flexibility
to allow future development to respond to the opportunities in the marketplace for a unique resort
development.
The Specific Plan established a land use framework by establishing eight Planning Areas (PAs) to
guide the development of a master -planned resort community with two public golf courses, multiple
hotels (including boutique and conference hotels), residential units, a mixed -use retail village, and
supporting amenities as identified in Table 2-2. The plan included design and development
standards aligned with the City's General Plan and excluded the previously preserved 160-acre
portion of the Santa Rosa Mountains.
The approved Specific Plan allows minor modifications without a Specific Plan amendment as
follows:
• The addition of new information to the Specific Plan maps or text that do not change the effect of
any regulation. The new information may include more detailed, site -specific information. If this
information demonstrates that Planning Area boundaries are inaccurately designated, based
upon the goals of the Specific Plan, said boundaries may be adjusted or redesignated to reflect
a more accurate depiction of on -site conditions without requiring a Specific Plan Amendment.
Adjustments to the golf corridors may be made, resulting in a corresponding change to the
adjacent development parcel, without the requirement of a Specific Plan Amendment.
• Changes to the community infrastructure, such as drainage systems, roads, water, and sewer
systems, etc., which do not have the effect of increasing or decreasing capacity in the project
area beyond the specified density range nor increase the backbone infrastructure construction
or maintenance costs.1
The 2006 Addendum concluded that the proposed Specific Plan would not result in any new or
substantially more significant impacts than were identified in the Adopted 2002 MND.
2014 Aaaenaum
In 2014, the City of La Quinta prepared a second Addendum to the 2002 Mitigated Negative
Declaration (2014 Addendum) to evaluate a refined master plan for the SilverRock Resort project in
response to evolving market conditions and support the approval of a series of agreements to
implement the project, including a Development Agreement (DA) and a Purchase, Sale, and
Development Agreement (PSDA) pursuant to California Government Code Section 65864 with a
master developer for development of resort, recreational, retail/ commercial, and residential uses
as permitted by the Specific Plan.
1 City of La Quinta, SilverRock Resort Specific Plan (2006), 51.
Meridian Consultants 1 .0-4 SilverRock Resort Project Addendum
September 2025
1.0—Introduction
The 2014 Master Plan as evaluated in the Addendum included a hotel, spa, banquet room, residential
units, commercial/retail space, a golf clubhouse, and an additional 18-hole golf course As
summarized in Table 2-2. The 2014 Addendum concluded that the proposed Specific Plan would not
result in any new or substantially more significant impacts than were identified in the Adopted 2002
MND.
1.2 PREVIOUS APPROVALS
In 2006, the City of La Quinta approved the SilverRock Resort Specific Plan to guide the phased
development of the approximate 546 acre the SilverRock site. An Addendum to the 2002 MND (2006
Addendum) was prepared to evaluate the proposed Specific Plan. The 2014 DA, PDSA and
amendments to the PSDA allowed development in Planning Areas 2 to 9 as defined in the approved
Specific Plan. The PSDA and subsequent amendments addressed financing, construction timelines,
performance schedules, and financial incentives for the phased construction of luxury hotels,
branded residences, golf villas, a new golf clubhouse, a conference center, and related
infrastructure. PSDA Amendment No. 3, November 2018, amended and restated key terms of the
original PSDA between the City and the Developer and included an updated master plan (2018
Master Plan) shown Figure 1-1: 2018 SilverRock Resort Master Plan.
A series of Site Development Permits (SDPs) approved site, architectural, and landscaping plans for
Planning Areas 2-7 as delineated in the 2025 Project in accordance with the SilverRock Specific Plan
and applicable zoning and environmental regulations. The SDPs established project conditions,
design requirements, environmental compliance measures, and public infrastructure obligations.
1.3 PROPOSED 2025 SILVERROCK RESORT MASTER
PLAN
The 2025 SilverRock Resort Master Plan, as shown below in Figure 2-4: 2025 SilverRock Master
Plan, includes hotel and resort residential uses as permitted by the SilverRock Specific Plan along
with the second 18-hole golf course and related support and amenity facilities. Development of one
hotel is now proposed with resort residential units. Overall, the 2025 SilverRock Master Plan reflects
a reduced intensity of hotel and residential development compared to the 2018 Master Plan as
shown in Table 2-2: Comparative Land Use Summary: Prior Environmental Reviews and the 2025
SilverRock Master Plan.
Meridian Consultants 1 .0-5 SilverRock Resort Project Addendum
September 2025
1.0—Introduction
1.4 PURPOSE OF AN ADDENDUM
The California Environmental Quality Act (CEQA) and State CEQA Guidelines define standards and
the procedure for determining the level of additional environmental review required when an
Environmental Impact Report (EIR) has been certified or a Negative Declaration adopted for a
project.2
An Addendum to an adopted MND is appropriate where the lead agency has determined that
changes to the project, changed circumstances, or new information would not result in the
identification of new significant impacts or a substantial increase in the severity of impacts identified
in the adopted MND. An Addendum is appropriate where a lead agency has determined that none of
the conditions described in CEQA Guidelines Section 15162 call for the preparation of a subsequent
EIR or negative declaration have occurred.
Public review of an Addendum is not required by CEQA. Instead, the information in an Addendum is
to be considered with the adopted MND prior to a decision being made on actions proposed.
This Addendum provides:
1. An update to the information in the adopted MND on the existing environmental conditions under
which the SRR Project will be undertaken.
2. An analysis of the potential environmental effects of the 2025 Project as compared to the
environmental effects of the SRR Project as analyzed in the 2002 MND and prior Addenda.
An Addendum is the appropriate document to update the information in the adopted MND for the
following reasons:
1. No substantial changes are proposed to the SRR Project that will require major revisions of the
adopted MND because there are no new significant effects or any substantial increase in the
severity of previously identified significant impacts.
2. No substantial changes in circumstances under which the SRR Project will be undertaken have
been identified that will require major revisions of the adopted MND as there are no new
significant environmental effects or any substantial increase in the severity of previously
identified effects.
3. No new information of substantial importance has been discovered that was not known and
could not have been known with the exercise of reasonable diligence at the time the adopted
MND was prepared. Specifically, a review of the current existing conditions and the 2025 Project
demonstrates the following:
2 CEQA Guidelines, Sections 15162-15164.
Meridian Consultants 1 .0-6 SilverRock Resort Project Addendum
September 2025
SOURCE: The Robert Green Company — November 29, 2016
FIGURE 1-1
F#eridian 2018 SilverRock Resort Master Plan
Consultants
453-001-25
1.0—Introduction
a. The 2025 Project will not have one or more significant effects not discussed in the adopted
MND.
b. Significant effects previously examined will not be substantially more severe than shown in
the adopted MND.
c. No new mitigation measures or alternatives have been found to be feasible that would
reduce one or more significant effects of the Specific Plan.
d. No new mitigation measures or alternatives, considerably different from those analyzed in
the adopted MND, have been identified that the Project proponents decline to adopt.
Meridian Consultants 1 .0-8 SilverRock Resort Project Addendum
September 2025
2.0 PROJECT DESCRIPTION
2.1 PROJECT LOCATION
The SilverRock Project Site (SRR Project Site or Project Site) is located within the City of La Quinta in the
County of Riverside (County). The City of La Quinta (City) is located in the southeastern portion of the
Coachella Valley, approximately 105 miles from the City of Los Angeles and approximately 240 miles
from the Phoenix -Scottsdale metropolitan region. The City is bordered by unincorporated County
areas to the north and east and by the Santa Rosa and San Jacinto Mountains to the southwest and
west. As shown in Figure 2-1: Regional Location Map, surrounding jurisdictions include
unincorporated County areas to the north and east, the City of Palm Desert and the City of Indian
Wells to the northwest, and the City of Indio and the City of Coachella to the northeast.
As shown in Figure 2-2: Project Location, the Project Site is located in the central portion of the City,
bounded by Avenue 52 to the north, Jefferson Street to the east, Avenue 54 on the south, and the
Santa Rosa Mountains on the west; and is accessible from Interstate 10 via Washington and Jefferson
Streets. The Coachella Canal traverses west through the Project site from Jefferson Street and turns
south within the Project Site.
Uses surrounding the Project Site include golf courses, residential communities, and natural open
space areas. The Citrus Club at PGA West golf course and residential community is north of Avenue
52; the Mountain View Country Club golf course and residential community is north of Avenue 52 and
east of Jefferson Street; the Hideaway golf club and residential community is east of Jefferson Street;
the PGA West golf course and residential community is south of the Project Site and to the south of
Avenue 54; and the Santa Rosa Mountains are to the west.
2.2 PROJECT SITE CONDITIONS
The Project Site consists of areas that have been previously graded, developed, or partially developed
as shown in Figure 2-3: Project Site Aerial Photograph. The eastern portion of the site contains
previously graded development pads. SilverRock Park is located in the northwest; the Arnold Palmer
Classic Golf Course, Ahmanson House, a series of partially constructed buildings associated with
the previous approvals are located in the western portion of the site; and a Bighorn sheep exclusion
fence has been completed along the toe -of -slope of the Santa Rosa Mountains.
Utilities have been constructed to support development of the uses allowed by the approved
Specific Plan. Water to the Specific Plan area is provided through an existing 18-inch water main in
SilverRock Way. An 18-inch main line is located adjacent to the Project Site in Jefferson Street and
there are two (2) water well sites and a pressure reducing/boosting station. A storm drain in Avenue
52 is designed to convey stormwater to the planned location of the second golf course on the Project
Site along Avenue 52 and Jefferson Street. The partially constructed buildings include a conference
center/shared services facility, golf clubhouse, hotel, spa, guest rooms, and branded residential
Meridian Consultants 2.0-1 SilverRock Resort Project Addendum
September 2025
2.0—Project Description
units. These partially constructed buildings are proposed to either be reused, relocated, or
demolished as part of the Project as identified in Table 2-1: Partially Constructed Buildings. For
purposes of environmental analysis in this Addendum and to provide a conservative analysis for the
2025 Project, demolition of the partially constructed buildings is assumed.
Conference
Center/Shared 81,022 60 45 Demolish/Reuse
Service Facility
Demolish and
Golf Clubhouse
14,550
75
75
relocate/rebuild
Hotel Buildings
26,321
60
55
Demolish/Reuse
Demolish and
Hotel Spa
16,716
45
40
relocate/rebuild
Hotel Guest Rooms
91,045
45
40
Demolish/Reuse
Hotel Branded
Demolish and
149,908
30
25
Residences
relocate/rebuild
Source: Turnbridge Equities.
2025.
2.3 PROJECT CHARACTERISTICS
The 2025 SilverRock Master Plan reconfigures the planned hotel, resort residential, commercial, golf
course and related ancillary support uses to complement the existing public golf course and related
public facilities on the Project Site as shown in Figure 2-4: 2025 SilverRock Master Plan.
The 2025 Project is consistent with the SilverRock Specific Plan as approved by the City in 2006. As
shown Table 2-2: Comparative Land Use Summary: Prior Environmental Reviews and the 2025
SilverRock Master Plan, the amount of development planned is consistent with, and less intensive,
than the SRR Project as defined and analyzed in the City's prior environmental review documents.
Meridian Consultants 2.0-2 SilverRock Resort Project Addendum
September 2025
i
Vi
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LegendrimProject Site r !►: J�. Y wfr'°':��� 1
0 0.75 1.5 3! *f.'� �(/Jjjr. w• i, ' �'i' ;�
APPROXIMATE SCALE IN MILES
SOURCE: City of La Quinta - 2025
FIGURE 2-1
IW)eridian Regional Location
Cor s iltarnt
453-001-25
s Rot,
��ii� "AsfMia6ak �r .
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2.0—Project Description
FIGURE 2-3: PROJECT SITE AERIAL PHOTOGRAPHS
L�
1W
i
flow
Meridian Consultants 2.0-5 Addendum to the SilverRock Resort Project
September 2025
2.0—Project Description
Development
Summary
Planning Areas
Golf Facilities
Units - Hotel Rooms /
Keys or Residential
Units
Commercial
Conference/Event
Facilities
Ahmanson House
Hotel/ Residential Units/Keys: 550
Commercial: 25,000 SF
Conference/Event Facilities: 10,000 SF
Golf Holes: 45
N/A
Two 18-hole Golf Courses
One 9-hole Golf Course
Hotel (250 Units)
Condominium Hotel Units (250 Units)
25,000 SF
10,000 SF Conference Center
Civic/Cultural and Restaurant Use
Hotel/ Residential Units/Keys:
1,135/1,360
Commercial: 160,000 SF
Conference/Event Facilities: 10,000 SF
Golf Holes: 36
New Clubhouse for Public Course
8 Planning Areas (PA 1-8)
Two 18-Hole Golf Courses
PA 1: Arnold Palmer Classic Course
PA 10: Second 18-Hole Golf Course
PA 2: Boutique Hotel (200 Units / 260
Keys)
PA 4: Resort Hotel (405 Units / 520 Keys)
PA 6: Lifestyle Hotel (450 Units / 500
Keys)
PA 5 and Hotels: 160,000 SF
10,000 SF Conference Center
PA 2: 10,000 SF Civic/Cultural
300 Seat Restaurant
80 Boutique Guest Rooms
Hotel/ Residential Units/Keys: 850
Commercial: 35,000 SF
Conference/Shared Facilities: 71,000 SF
Golf Holes: 36
New Clubhouse for Public Course
12 Planning Areas (PA 1-12)
Two 18-Hole Golf Courses
PA 1: Arnold Palmer Classic Course
PA 10: Second 18-Hole Golf Course
PA 2: Luxury Hotel (140 Keys)
PA 5: Lifestyle Hotel (200 Keys)
PA 3: 35 Branded Residences
PA 6: 60 Branded Residential Units
PA 7-10a: 415 Resort Residential Units
PA 7 and PA 9: 35,000 SF
Hotel/ Residential Units/Keys: 1,084
Commercial: 40,000 SF
Conference/Shared Facilities: 71,000 SF
Golf Holes: 27
New Clubhouse for Public Course
12 Planning Areas (PA 1-12)
Two 18-Hole Golf Courses
PA 1: Arnold Palmer Classic Course
PA 10: Second 9-Hole Golf Course
PA 2: Luxury Hotel (140 Keys)
PA 5: Lifestyle Hotel (200 Keys)
PA 3: 35 Branded Residences
PA 6: 66 Branded Residential Units
PA 7-10B-6: 643 Resort Residential Units
PA 7 and PA 9: 40,000 SF
Hotel/ Residential Units/Keys: 599
Commercial 40,000 SF
Banquet/Shared Facilities: 55,000 SF
Golf Holes: 36
New Clubhouse for Public Course
8 Planning Areas (PA 1-8)
Two 18-Hole Golf Courses
PA 1: Arnold Palmer Classic Course
PA 8: Second 18-Hole Golf Course
PA 3: Luxury Hotel (154 Keys)
PA 2: 29 Branded Residences
PA 6: 70 Branded Residential Condos
PA 7: 93 Branded Residences
PA 8: 253 Residential Units
PA 8: 40,000 SF
PA 4: 71,000 SF Ballroom Meeting Space, PA 4: 71,000 SF Ballroom Meeting Space, PA 5: 55,000 SF Banquet Meeting Space, Food
Food Service, Back Of House Food Service, Back Of House Service, Back Of House
PA 2: 7,500 SF Restaurant
1,500 SF Storage Building
PA 2: 7,500 SF Restaurant
PA 3: 7,500 SF Restaurant
Meridian Consultants 2.0-6 Addendum to the SilverRock Resort Project
September 2025
2.0—Project Description
PSDA Amendment No. 3, dated November 28, 2018, amended and restated key terms of the original
PSDA between the City and the developer, and implemented a revised development framework. The
Land uses permitted under this revised framework are reflected in the 2018 Master Plan, which
represents the most current land use plan for the Project. A summary of the 2018 Master Plan is shown
below in Table 2-3: 2018 SilverRock Resort Master Plan Land Use Summary.
1
Golf Course (Existing)
179.0
2
Luxury Hotel
20.5
140
3
Luxury Branded residential Development
14.0
35
4
Conference and Shared Service Facility
7.5
5
Lifestyle Hotel
10.5
200
6
Lifestyle Branded Residential Development
10.0
66
7
Promenade Mixed Use Village Area 1
10.5
150
8
Resort Residential Village
22.5
160
9
Promenade Mixed Use Village Area 11
15.0
80
1OA-1
Golf Clubhouse & Golf Course
51.5
25
10A-2
Residential
13.5
46
10A-3
Residential
6.0
23
1OB-1
Golf Course
62.0
40
1OB-2
Residential
5.5
19
1OB-3
Residential
4.5
20
1OB-4
Residential
7.0
34
1OB-5
Residential
5.5
22
1OB-6
Residential
5.5
24
Su btota I of PA 10
Residential
253
11
Public Park
22.0
12
Arroyo, Trails, Canal & Streets
53.5
TOTAL
525.0
1,084
Table 2-4: 2025 SilverRock Master Plan Summary provides an overview of the development
included in the 2025 Project. PAs 1, 11 and 12 are City owned land, and as shown in Table 2-3, are
proposed for recreational use. PAs 9 and 10 in the 2018 Master Plan included resort residential units
and commercial space. The intensity of residential units and commercial space is reduced in the
2025 Project and PAs 9 and 10 were combined into PA 8 in the 2025 Project, as shown in Table 2-2.
The 2025 Project includes a revised development program for the first phase of the Project. This first
phase includes the development of a 154-room Luxury Resort Hotel with supporting facilities, 192
single-family and condominium resort residential units and a new clubhouse for the existing public
golf course in PAs 2-7. The 2025 Project reduces the intensity of development in these planning areas
compared to the 2018 Master Plan.
The second phase includes the future development of an 18-hole private golf course, 253 resort
residential units and 40,000 square feet of commercial development in PA 8. This second phase of
Meridian Consultants 2.0-7 Addendum to the SilverRock Resort Project
September 2025
2.0—Project Description
development is the same as the development planned in this portion of the Project Site in the second
phase of the 2018 Master Plan.
Golf Course
1 improvements
161.0
18
(existing)
2 Residential Lots
13.4
29
3 Hotel
154 250,000
Hotel Lobby
22.6
Restaurants/Bars
-1.3 (spa)
Retail
- 0.5
Spa
(retail,
Wellness
restaurant,
Fitness
bar)
Pools
4 Golf Clubhouse
17,000
3.7
Banquet (part of
5
25,000
hotel)
Back of House
8.7
5 (BOH) (part of
30,000
hotel)
Residential
6
273,000
70
Condos
18.3
Residential
Clubhouse
6
20,000
Amenities
building
7 Residential Lots
68.0
93
8 Residential
253
18-holes
8 Golf Course
200.0
18
private
8 Commercial
40,000
Meridian Consultants 2.0-8 SilverRock Resort Project Addendum
September 2025
PAl -Golf Course
(e)rstrng)
PA2 - Luxury Biondi
(29lots)
PA3 - Luxury Hotel
(154 tuest rooms, li
restaurants, retail,
amennies. BOH, et(
250,o00sf)
r •
vr�
1 •
MIN
SOURCE: Turnbridge Equities, 2025
PA4 - Public Golf Clubhouse
(17.000sf)
PAS - Luxury Hotel Banquet 6
Back of Hous* Functwns
(Banquet: 25.000sf)
( BOH: 30,000sf)
PAG - Luxury Wended Condominiums
(70 units)
Resident Clubhouse 6 Facilities
(20,000%f)
PA7-Luxury &ended Residences
(93 lots)
PAS - Future Golf. Residential,
and Commercial
(18-hole private Coll course, 253
res►dential units. and 40.0O0sf
commercial►
FIGURE 2-4
IW)eridian 2025 SilverRock Master Plan
Loris iltanit
453-001-25
2.0—Project Description
Further description of the development proposed in each Planning Area is provided below.
Planning Area I
Planning Area 1 includes the existing 173-acre Arnold Palmer Classic Golf Course and golf course
maintenance facility site. The Project proposes to upgrade the existing golf course and realign a
portion of SilverRock Way adjacent to the proposed public golf clubhouse in Planning Area 4 (PA 4).
The southern segment of SilverRock Way would be removed to allow clubhouse guests to access the
golf course directly without crossing a vehicular roadway. To maintain circulation, the Project would
extend Ahmanson Way between PA 4 and PA 5 to connect with the northern segment of SilverRock
Way.
Planning Area 2
In Planning Area 2 the re -use or demolition of the partially constructed homes is proposed to allow
the development of 29 luxury branded resort residences, each with four to five bedrooms and ranging
from approximately 4,000 to 6,000 square feet in size. These residences will be privately owned but
maintain a direct affiliation with the adjacent luxury hotel. The hotel owner and future residential
owner(s) will have the option to make their units available for short-term vacation rental through a
hotel -managed rental program. The purchase and sale agreement and property covenants would
require that all rentals must be managed through the hotel reservation system, subject to applicable
Laws.
Planning Area 3
In Planning Area 3, the re -use or demolition of the partially constructed hotel buildings is proposed
to allow the development of a 154-unit luxury hotel, with approximately 250,000 SF of total space.
The existing Ahmanson House property is intended to be renovated for use as a restaurant or other
hotel amenity, consistent with the existing project approvals. The luxury hotel would use the new
Back of House and Banquet facilities in Planning Area 5.
Planning Area 4
In Planning Area 4, development of a new approximately 17,000 SF golf clubhouse is proposed to
serve the golf course(s) on the Project Site. It will replace the partially constructed golf clubhouse
currently occurring in Planning Area 8 (see below).
Planning Area 5
In Planning Area 5, the partially constructed one-story 81,000 SF conference/shared services
buildings would be demolished to allow for the development of a 25,000 SF banquet facility and a
30,000 SF back of house (BOH) facility.
Meridian Consultants 2.0-1 0 Addendum to the SilverRock Resort Project
September 2025
2.0—Project Description
Planning Area b
In Planning Area 6 the demolition of the partially constructed public golf clubhouse is proposed to
allow for the development of 70 luxury branded resort condominium units, each with two to five
bedrooms, and ranging from approximately 2,000 to 4,000 SF in size. Development in this Planning
Area would also include an approximately 20,000-SF clubhouse building that would provide
amenities for residents along with other amenities like pools, tennis, pickleball, and padel, among
others. These residences will be privately owned but maintain a direct affiliation with the adjacent
Luxury hotel. The hotel owner and future residential owners will have the option to make their units
available for short-term vacation rental through a hotel -managed rental program. The purchase and
sale agreement and property covenants would require that all rentals must be managed through the
hotel reservation system, subject to applicable laws.
Planning Area 7
Planning Area 7 is proposed to allow for the development of 93 luxury branded resort residences.
These residences will be privately owned but maintain a direct affiliation with the adjacent luxury
hotel. Future residential owners will have the option to make their units available for short-term
vacation rental through a hotel -managed rental program. The purchase and sale agreement and
property covenants would require that all rentals must be managed through the hotel reservation
system, subject to applicable laws.
Planning Area 8
In Planning Area 8, a second 18-hole golf course is proposed with up to 253 private residences and
40,000 SF of commercial uses. This is the same program of development for this area included in the
2018 Master Plan. Planning Area 8 as defined in the 2025 Plan includes PAs 8, 9 and 10 as defined in
the 2018 Plan.
Planning Areas 1 1 and 12
PAs 11 and 12, City owned land planned for recreational use, are not part of the proposed 2025
project. These PAs include SilverRock park, which has been developed, and the other recreational
elements will be considered by the City as development occurs.
2.4 SCHEDULE
Construction of the 2025 Project would consist of two phases - Phase I and Phase 11. Phase I would
include the development of PAs 1 to 7 and Phase 11 would include the development of PA 8. Each
phase would include site preparation (including clearing, grubbing, and grading), infrastructure
construction (including internal street development, electric, natural gas, and telecommunications
improvements), and construction of individual buildings. No building construction timeline is
available because the Specific Plan Area would be built out depending on market conditions.
Meridian Consultants 2.0-1 1 SilverRock Resort Project Addendum
September 2025
2.0—Project Description
Phase I is anticipated to occur over the course of seven years, with a start in November 2026 and
completion by April 2033. A breakdown of each PA in Phase I detailed below.
• Development of PAs 1, 3, 4 and 5 is anticipated to be from November 2026 to May 2029.
• PA 2, which would develop approximately 29 single-family homes, is estimated to start in early
2027. Construction of each house is expected to have a duration of 20 months, but they will not
all start at the same time. The last house is estimated to begin construction in late 2029 and
finish mid-2031.
• PA-6, which would develop 70 luxury condo units, is estimated to start early 2027 and have a 24-
month duration per building and with a total of 10 buildings. Assuming each building is one
month behind the next, Building 1 is estimated to start in Jan 2027 and Building 10 is estimated
to be complete by Oct 2029. Overall, condo building construction would start in January 2027
and be completed in October 2029.
• PA 7, which would develop 93 single-family homes, is anticipated to begin in 2030 and be built in
phases over 38 months, into April 2033.
Phase 11, which would include the development of PA 8, is anticipated to be over the course of 11
years following the completion of Phase I, from 2035-2045.
Meridian Consultants 2.0-1 2 SilverRock Resort Project Addendum
September 2025
3.0 IMPACT ANALYSIS
This section includes separate subsections for each environmental topic addressed in the 2002
MND. Each topical section presents a summary of the information and conclusions of the analysis
in the Previous Assessments. Updated information reflecting any changes in the circumstances
under which the proposed Project will occur is presented for each topic, followed by analysis of the
environmental impacts of fully developing the uses as proposed by the proposed Project and as
compared to the Previous Assessments. The following environmental topics addressed in the
previous environmental review documents are addressed in this Addendum:
• Land Use and Planning
•
Hazards
• Population and Housing
•
Noise
• Geology and Soils
•
Public Services
• Water
•
Utilities and Service Systems
• Air Quality
•
Aesthetics
• Transportation/Circulation
•
Cultural Resources
• Biological Resources
•
Recreation
• Energy and Mineral Resources
•
Greenhouse Gases
The adopted 2002 MND identified the environmental effects of the 2002 Project that would be less
than significant, avoided, or substantially reduced to less than significant levels by the
implementation of the adopted mitigation measures.
The 2006 and 2014 Addenda evaluated the environmental effects of the development analyzed in the
addendum as compared to the development analyzed in the 2002 MND and determined the revisions
as proposed would not result in any new or substantially more severe significant impacts than
identified in the 2002 MND.
Meridian Consultants 3.0-1 Addendum to the SilverRock Resort Project
September 2025
3.0—Impact Analysis
3.1 LAND USE AND PLANNING
i nres,,u,un,
a. Physically divide an established community?
b. Conflict with any applicable land use plan, policy, or regulation of an agency with jurisdiction
over the project (including, but not limited to the general plan, specific plan, local coastal
program, or zoning ordinance) adopted for the purpose of avoiding or mitigating an
environmental effect?
c. Conflict with any applicable habitat conservation plan or natural community conservation
plan?
3.1.2 Summary of Findings in Previous Assessments
The Adopted MND and prior Addenda concluded that the development of the SilverRock Resort
Project would not disrupt or divide the existing community because the Project Site consisted of
vacant and partially developed land situated within a developed area. The Project Site is surrounded
on the north, east and south by similar golf course communities including the Citrus Club at PGA
West golf course and residential community north of Avenue 52; the Mountain View Country Club
golf course and residential community north of Avenue 52 and east of Jefferson Street; the Hideaway
golf club and residential community east of Jefferson Street; and the PGA West golf course and
residential community south of the Project Site. The western 160 acres of the site adjacent to the
Santa Rosa Mountains is preserved as open space. The prior project was planned to be compatible
with these adjacent resort and residential communities.
Consistent with the General Plan designations for the Project Site of Open Space — Recreation (OS-
R), Tourist Commercial (TC), and Open Space — Natural (OS-N) the Project has long been envisioned
as a golf resort with complementary residential, hotel, and commercial uses. The proposed resort,
residential, and commercial land uses were found to be compatible with surrounding land use
patterns, and buffers such as golf courses were planned along the periphery to ensure compatibility
and transition with adjacent neighborhoods.
The uses permitted by the Specific Plan were determined to be consistent with the City's General
Plan land use designations and zoning. No inconsistencies with applicable plans or policies were
identified. Subsequent refinement of the Project over time has reduced the overall intensity of the
allowed uses, including fewer residential units, fewer hotel room keys, and less commercial space
than previously analyzed. The Project remained consistent with the General Plan and Specific Plan.
In addition, the Prior Assessments concluded the Project would not conflict with the Coachella
Valley Multiple Species Habitat Conservation Plan (CVMSHCP) and identified mitigation measures
(MM) 131O-2 (building bighorn sheep fencing) to ensure compliance with the CVMSHP by focusing on
the protection and separation of bighorn sheep that live in the Santa Rosa Mountains west of the
Project Site from urban development.
Meridian Consultants 3.0-2 Addendum to the SilverRock Resort Project
September 2025
3.0—Impact Analysis
The Project Site is not located directly within the CVMSHCP Conservation Areas, but the Project Site
is located adjacent to the Santa Rosa and San Jacinto Mountains Conservation Area, and the project
would be required to pay the CVMSHCP/Natural Community Conservation Plan Mitigation Fee as
required by design feature 1 identified in the 2035 General Plan.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to land use and planning. All impacts remained less
than significant, and no mitigation measures specific to land use and planning were identified in the
Previous Assessments.
3.1.E existing Condition, --
The City consists of residential, resort, and commercial development surrounded by hillside and
mountain open space areas. Most of the land within the City has been developed with a few
undeveloped infill lots located throughout the urbanized area.
As detailed in Section 2: Project Description, the 2014 DA, PDSA and subsequent amendments,
and SDPs allowed development in PAs 2 to 9. Construction began on several buildings, including the
conference center/shared services facility, golf clubhouse, hotel, spa, guest rooms, and branded
hotel residences, but was not completed, leaving partially constructed and unoccupied structures
on the Project Site. The Project Site currently includes the Arnold Palmer Classic Golf Course, the
Ahmanson House, and these partially constructed buildings.
The General Plan land use and zoning designations for the Project Site remain unchanged since the
2014 Addendum. As depicted in Figure 3.1-1: General Plan Land Use Map, most of the Project Site
has a General Plan land use designation of OS-R, with the central western portion designated as TC,
and the Coachella Canal area designated as OS-N. As depicted in Figure 3.1-2: Zoning Map,
corresponding zoning designations include Golf Course (GC) and Park and Recreation (PR) for OS-R,
Tourist Commercial (CT) for TC, and Floodplain (FP) for OS-N.
The Tourist Commercial designation allows tourism -related land uses, including resort hotels, hotels
and motels, and resort commercial development, such as conference centers, restaurants, resort -
supporting retail and services. The Recreational Open Space designation applies to parks, recreation
facilities, including driving ranges, club houses, and athletic facilities, as well as public and private
golf courses. The Natural Open Space designation is applied to areas of natural open space, whether
owned by private parties or public entities. Little development is permitted in this designation with
the exception of traitor trailhead development.
Meridian Consultants 3.0-3 SilverRock Resort Project Addendum
September 2025
v
Project Site _ ��
3.0—Impact Analysis
General Plan land use designations surrounding the Project Site include OS-R and Medium and High
Density Residential (MHDR) to the north; OS-R, MHDR and OS-N to the east; OS-R and Low Density
Residential (LDR) to the south; and OS-R, LDR and OS-N to the west. Zoning designations
surrounding the Project Site include GC and Low Density Residential (RL) to the north; GC, Medium
High Density Residential (RMH), RL and FP to the east; GC and RL-to the south; and Open Space (OS),
RL, and GC to the west.
3.1.4 Analysis of the Proposed Project
The 2025 Project would reconfigure the planned hotel, residential and related uses in PAs 1 to 8. The
Project Site has been planned for the development of a golf course and complementary hotel,
residential and commercial land uses and implementation of the SilverRock Resort Project as
allowed bythe SilverRock Resort Specific Plan would not physically divide an established community
for this reason.
As detailed in Table 2-2: Comparative Land Use Summary: Prior Environmental Reviews and the
2025 SilverRock Master Plan, the 2025 Project includes approximately 599 hotel/residential units,
40,000 SF of commercial uses, 55,000 SF banquet/shared facilities, 36 golf holes and a new
clubhouse for the Arnold Palmer Classic Course, which would reduce overall development intensity,
including fewer residential units, fewer hotel room keys, and less commercial square footage than
analyzed in the Previous Assessments. The 2025 Project would remain consistent in terms of use and
character with the surrounding golf and residential uses. Therefore, the 2025 Project would not result
in any new significant or substantially more severe land use impacts than were identified in the
Previous Assessments.
The 2025 Project would not conflict with the Coachella Valley Multiple Species Habitat Conservation
Plan (CVMSHCP), which was approved in 2007. The CVMSHCP is a joint regional planning effort of
the USFWS, California Department of Fish and Game (CDFG), Bureau of Land Management (BLM),
US Forest Service (USFS), National Park Service (NPS), as well as Riverside County and local
jurisdictions within the Coachella Valley, including the City of La Quinta. As required by MM B1O-2, a
fence was constructed to reduce potential adverse impacts to bighorn sheep to less than significant
by precluding access to the Project Site. With the implementation of MM B1O-2, the 2025 Project
would not adversely affect any sensitive natural community identified in the General Plan, the
CVMSHCP policies and regulations or by the California Department of Fish and Wildlife (CDFW) or
US Fish and Wildlife Service (USFWS). The City of La Quinta participates in the CVMSHCP mitigation
fee for new development to offset potential biological impacts as discussed further in Section 3.7,
Biological Resources, and the 2025 Project remains subject to the CVMSHCP fee.
Land use and planning impacts associated with the 2025 Project would be similar to those identified
in the Previous Assessments and would be less than significant. No new significant impacts or
increase in the severity of any previously identified significant impacts would result from changes to
the Project, new information, or changes to the circumstances under which the Project will be
undertaken.
Meridian Consultants 3.0-6 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
3.2 POPULATION AND HOUSING
3.2.1 1 nresr,u,un,
a. Induce substantial population growth in an area, either directly (for example, by proposing
new homes and businesses) or indirectly (for example, through extension of roads or other
infrastructure)?
b. Displace substantial numbers of existing housing, necessitating the construction of
replacement housing elsewhere?
c. Displace substantial numbers of people, necessitating the construction of replacement
housing?
3.2.2 Summary of Findings in Previous Assessments
Previous Assessments found that development of the Project would allow land uses that are
consistent with the General Plan Land Use designations and as permitted by the approved Specific
Plan. The Specific Plan allows for timeshares, hotels, resort casitas, and privately owned residential
units. The prior Addenda discussed that these units may typically be occupied on a seasonal basis,
which is typical for privately owned units in resort communities in the Coachella Valley. The Previous
Assessments concluded the project would not induce substantial growth in the area. Previous
Assessments identified that the proposed development intensities would result in fewer units, hotel
keys and commercial space when compared to what is permitted by the Specific Plan. Previous
Assessments identified that the reduction in intensity of land uses would generate fewer visitors to
the Specific Plan Area. The 2035 General Plan growth projections accounted for the Specific Plan.
Accordingly, no new expansion of existing utility or infrastructure improvements would be needed.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to population and housing. All impacts remained less
than significant.
3.2.3 Existing Condition!
The California Department of Finance (DOF) annually updates the latest population and housing
numbers. As of January 1, 2025, DOF estimates that the City has a population of approximately
38,796 residents and 24,700 housing units.3 The Project Site does not contain any habitable
residential units nor contains anyone living on the site.
1 7'A Analysis of PropocPri PrniPrt
The Project Site was approved for the development of hotel and residential units. The 2025 Project
includes approximately 599 hotel/residential units, which is less hotel/residential units analyzed in
the Previous Assessments. Of those 599 hotel/residential units, there would be 154 hotel units and
3 California Department of Finance. "E-5 Population and Housing Estimates for Cities, Counties, and the State, 2020-
2025." Accessed July 2025. https://dof.ca.gov/forecasting/demographics/estimates/e-5-population-and-housing-
esti mates-for-cities-cou nties-and-the-state-2020-2025/.
Meridian Consultants 3.0-7 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
192 branded residences. For purposes of assessment in this Addendum, it is assumed that all
residential and hotel units would be occupied full time. The 346 hotel units and branded residences
would generate a population increase of 976 people.4 The remaining 253 residential units in PA 8
would generate a population increase of 714 people, for a total population increase of 1,690
people.5,6
As mentioned above, the City has a current population of approximately 38,796 residents and 24,700
housing units. The City's projected 2050 population is 55,836, an increase of 17,040 residents within
25 years.7 The addition of 1,690 people would not represent a substantial increase, representing
approximately 9.9 percent of the City's projected population growth from 2025 to 2050. The City
currently has 24,700 housing units. The City's 2035 General Plan EIR found that at General Plan build
out, there would be 31,603 dwelling units at full occupancy within the City, an increase of 6,903
units.$ The 2025 Project's 599 units would represent approximately 8.7 percent of the growth from
2025 to the General Plan build out.
The 2025 Project's proposed residential uses would not induce substantial population and housing
growth within the City. No existing populations reside within the Project Site nor are there any existing
habitable housing units within the Project Site. Therefore, development of the 2025 Project would not
displace substantial numbers of people, as the Project Site does not contain existing housing and
would not require the construction of replacement housing elsewhere.
Population and housing impacts associated with the 2025 Projectwould be similarto those identified
in the Previous Assessments and would be less than significant. No new significant impacts or
increase in the severity of any previously identified significant impacts would result from changes
associated with the 2025 Project, new information, or changes to the circumstances under which
the 2025 Project will be undertaken.
4 (346 proposed units x 2.82 people per household) = 976 persons.
5 (253 proposed residential units x 2.82 people per household) = 714 persons.
6 The 2.82 people per household figure was derived from the Connect SoCal 2024 Plan's Demographics and Growth
Forecasts total population and household information for the County of Riverside. (2,992,000 total population /
1,062,000 total households) = 2.82 persons per household in 2050. The future projected number of households for the
City in 2050 is 19,800. Southern California Association of Governments. "Final Connect SoCal 2024 Demographics
and Growth Forecast." Accessed July 2025. https://scag.ca.gov/connect-socal.
7 (2.82 persons per household in 2050 x 19,800 households in 2050) = 55,836 people Southern California Association
of Governments. "Final Connect SoCal 2024 Demographics and Growth Forecast." Accessed July 2025.
https://scag.ca.gov/connect-socal.
8 City of La Quinta. 2035 La Quinta General Plan EIR. Accessed July 2025.
https://Iagtaserweb.laquintaca.gov/WebLink/Browse.aspx?id=l04281 &dbid=1 &repo=CityofLaQuinta.
Meridian Consultants 3.0-8 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
3.3 GEOLOGY AND SOILS
3.3.1 1 nresr,u,un,
a. Expose people or structures to potential substantial adverse effects, including the risk of loss,
injury, or death involving:
i) Rupture of a known earthquake fault, as delineated on the most recent Alquist-Priolo
Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other
substantial evidence of a known fault? Refer to Division of Mines and Geology Special
Publication 42.
ii) Strong seismic ground shaking?
iii) Seismic -related ground failure, including liquefaction?
iv) Landslides?
b. Result in substantial soil erosion or the loss of topsoil?
c. Be located on a geologic unit or soil that is unstable, or that would become unstable as a
result of the project, and potentially result in an onsite or off -site landslide, lateral spreading,
subsidence, liquefaction or collapse?
d. Have soils incapable of adequately supporting the use of septic tanks or alternative waste
water disposal systems where sewers are not available for the disposal of waste water?
3.3.2 Summary of Findings in Previous Assessments
Previous Assessments found no evidence of an Alquist-Priolo Zone, or potential active faulting within
the City, or the Project Site. Therefore, the potential for surface rupture as a result of fault plane
displacement during the design life of the Project Site was determined to be less than significant. As
also described in Prior Assessments, there are no active or potential faults within the City. However,
geological analyses conducted for the 2035 General Plan indicated the City could experience
moderate to very high ground shaking from earthquakes along the San Andreas Fault. Strong ground
shaking could result in indirect hazards, such as slope instability, liquefaction, settlement,
landslides, and flood inundation. All new buildings in the City are required to reinforce masonry, and
new construction must comply with the Uniform Building Code (UBC). Compliance with the UBC
would allow structures to resist major earthquakes without collapsing. As identified in MM GEO-1
and MM GEO-2, a comprehensive design level geotechnical evaluation and compliance with
applicable building codes would minimize structural damage to buildings and ensure safety in the
event of a moderate or major earthquake, respectively. Potential impacts would be reduced to a less
than significant level with implementation of MM GEO-1 and MM GEO-2.
Previous Assessments determined the Project Site is not located on a geologic unit that is considered
unstable, and liquefaction and ground subsidence due to the lowering of the existing groundwater
table is considered unlikely due to the minimum depth of 50 feet below ground surface for
groundwater on the site. Previous Assessments found that the Project Site is not within areas with
high or moderate liquefaction susceptibility and impacts would be less than significant. The southern
and western portions of the Planning Area near the base of steep slopes associated with the Santa
Meridian Consultants 3.0-9 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
Rosa and San Jacinto Mountains are at risk due to seismically induced slope instability. Lands
downslope of mountain slopes and hillsides may be susceptible to risks associated with landslide
and rockfall. The western edge of the Project Site has potential for soil slumps and rock fall to occur
as it is adjacent to the Santa Rosa Mountains; however, the western portion of the Project Site
consists of the existing Arnold Palmer Classic Golf Course and is not designated for additional
development. Previous Assessments found that the potential impact to structures from earthquake
induced slope instability would be less than significant.
Unconsolidated soils occur in many areas of the City and are subject to erosion, including wind
erosion. Previous Assessments identified MM AQ-1 through MM AQ-3 for dust control. Further, as
identified in the SilverRock Soil Stabilization Project, Previous Assessments described the
incorporation of vegetation to stabilize and avoid the loss of loose soils.9Thus, impacts related to
erosion, including wind erosion would be less than significant.
Previous Assessments also identified that there would be no use of septic tanks or alternative
wastewater disposal systems because all uses would be connected to existing sanitary sewer lines.
No impacts related to alternative wastewater disposal systems would occur.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to geology and soils. All impacts remained less than
significant with incorporation of MM GEO-1 and MM GEO-2.
Previously Identified Mitigation Measures
MM GEO-1 Prior to the design and construction of any structural improvements, a
comprehensive design level geotechnical evaluation shall be prepared that includes
subsurface exploration and laboratory testing. Recommendations for
grading/earthwork, surface and subsurface drainage, foundations, pavement
structural sections, and other pertinent geotechnical design considerations shall be
formulated and implemented based on the findings of this evaluation.
MM GEO-2 All buildings planned as a result of the proposed Project shall be constructed in
conformance with the Uniform Building Code (UBC), as adopted by the City of La
Quinta.
9 At the time the 2006 Addendum was being prepared, the SilverRock Soil Stabilization Project was being implemented
to avoid the loss of loose soils in the Specific Plan Area. The SilverRock Soil Stabilization Project included stabilizing
approximately 245 acres of undeveloped land within the Specific Plan Area with vegetation. The stabilization project
involved minor grading, clearing and grubbing, planting of barley seed and supplying temporary irrigation in order to
grow the seed for approximately 3 weeks. Once the barley was established the irrigation was removed and the barley
would stabilize the soiltogether for 2 to 3 years. This was done as a dust mitigation measure until the site is completely
developed.
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3.0—Impact Analysis
3.3.3 Existing Conditions
The City consists of residential, resort, and commercial development surrounded by hillside and
mountain open space areas. Most of the land within the City has been developed with a few
undeveloped infill lots located throughout the urbanized area.
As detailed in Section 2: Project Description, the Project Site is fully graded and is developed with
the Arnold Palmer Classic Golf Course, the Ahmanson House, and partially constructed buildings.
A Technical Background Report for the Safety Element of the La Quinta 2035 General Plan was
completed in 2010.10 The report identified earthquake -triggered geologic effects including ground
shaking, surface fault rupture, landslides, liquefaction, subsidence, and seiches. Seismic hazards
include areas susceptible to earthquake -induced slope instability and liquefaction. Geological
hazards identified within the City in the 2035 General Plan EIR included landslides, slope instability,
compressible, collapsible, or expansive soils, soil corrosivity, ground subsidence, erosion, and wind-
blown sand. Potential geology and soils hazards identified on the Project Site include liquefaction,
landslides, slope instability, and ground subsidence. No Alquist-Priolo Zones, or evidence of active
or potentially active faulting have been identified within the City.
3.3.4 Analysis of Proposed Project
The 2025 Project would develop hotel, residential, commercial, and related uses in PAs 1 to 8. The
Project Site has been planned for the development of a golf course and complementary hotel,
residential and commercial land uses. As detailed in Table 2-2, the 2025 Project includes
approximately 599 hotel/residential units, 40,000 SF of commercial uses, 55,000 SF banquet/shared
facilities, 36 golf holes and a new clubhouse for the Arnold Palmer Classic Course, which would
reduce overall development intensity, including fewer residential units, fewer hotel room keys, and
less commercial square footage than analyzed in the Previous Assessments.
There is no evidence of an Alquist-Priolo Zone, or active or potential active faulting encountered
anywhere within the boundaries of or near the Project Site. Therefore, the potential for surface
rupture as a result of fault plane displacement during the design life of the 2025 Project would be
Less than significant.
Although there are no active or potential faults within the City, geological analyses conducted for the
2035 General Plan indicate that the City could experience moderate to very high ground shaking from
earthquakes along the San Andreas Fault. Strong ground shaking can result in indirect hazards, such
as slope instability, liquefaction, settlement, landslides, and flood inundation. All new buildings in
the City are required to reinforce masonry. Additionally, new construction must comply with the UBC,
and compliance with the UBC would allow structures to resist major earthquakes without collapsing,
10 City of La Quinta. Technical Background Report to the Safety Element of the La Quinta 2035 General Plan Update.
Seismic Hazards. Geologic Hazards. Flooding Hazards. June 2010.
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3.0—Impact Analysis
even if structural damage occurs.11 The 2025 Project would be designed in compliance with a
comprehensive design level geotechnical evaluation and adherence to applicable building codes (as
identified in MM GEO-1 and MM GEO-2) to minimize structural damage to buildings and ensure
safety in the event of a moderate or major earthquake and reduce this potential impact to a less than
significant level.
The Project Site is not located in areas with high or moderate liquefaction susceptibility because the
groundwater level found at the Project Site is lower than 50 feet below ground surface (bgs). Impacts
would be similar to impacts identified in the Previous Assessments resulting in less than significant
impacts.
Areas at risk due to seismically induced slope instability occur within the southern and western
portions of the Planning Area near the base of steep slopes associated with the Santa Rosa and San
Jacinto Mountains. Lands downslope of mountain slopes and hillsides may be susceptible to risks
associated with landslides and rockfall. The 2025 Project is not located in areas with very high, high,
or moderate earthquake -induced slope instability. The western edge of the Project Site is located
adjacent to the base of the Santa Rosa Mountains, where soil slumps and rock falls occur. This area
of the Project Site contains the existing Arnold Palmer Classic Golf Course and is not designated for
development. As such, the potential impact to structures from earthquake induced slope instability
would be less than significant.
Unconsolidated soils occur in many areas of the City and are particularly subject to erosion,
including wind erosion. Erosion can result in loss of topsoil and diminish soil productivity. A majority
of the City is located within an active wind erosion zone. The 2025 Project would continue to adhere
to the mitigation measures related to erosion and dust control for the Project Site that were identified
in Previous Assessments, MM AQ-1 through MM AQ-3. Therefore, impacts related to erosion would
be less than significant.
The Project Site is not within a geologic unit that is considered unstable, and ground subsidence due
to the lowering of the existing groundwater table is considered unlikely as the groundwater table is a
minimum of 50 feet below the ground surface on the site. A portion of the Coachella Canal within the
Arnold Palmer Classic Golf Course experienced localized subsidence due to its location atop two
different types of ground materials: bedrock and alluvial soils. These materials settle at different
rates overtime, causing uneven ground movement that led to the sinking of the canal in certain areas.
To address this issue, the Coachella Valley Water District (CVWD), in coordination with the City of La
Quinta, implemented a canal realignment project in 2014. The project involved constructing a new,
parallel segment of the canal approximately 4,600 feet in length to bypass the unstable section. This
realignment restored the full conveyance capacity of the canal and eliminated the subsidence-
11 City of La Quinta. 2035 La Quinta General Plan EIR.
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3.0—Impact Analysis
related deficiencies. Construction was completed by September 2014. The 2025 Project will not
impact any portion of the realigned canal.
The 2025 Project would not include the use of septic tanks or alternative wastewater disposal
systems, as it would connect to existing sanitary sewer. As such, no impacts would occur with the
implementation of the Project.
Geology and soil impacts associated with the 2025 Project would be similar to those identified in the
Previous Assessments and would be less than significant with the incorporation of MM GEO-1, MM
GEO-2, and MM AQ-1 through MM AQ-3. No new significant impacts or increase in the severity of any
previously identified significant impacts would result from changes to the 2025 Project, new
information, or changes to the circumstances under which the 2025 Project will be undertaken.
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3.0—Impact Analysis
3.4 WATER
3.4.1 Thresholds
a. Violate any water quality standards or waste discharge requirements?
b. Substantially deplete groundwater supplies or interfere substantially with groundwater
recharge such that there would be a net deficit in aquifer volume or a lowering of the local
groundwater table level (e.g., the production rate of preexisting nearby wells would drop to a
level which would not support existing land uses or planned uses for which permits have been
granted)?
c. Substantially alter the existing drainage pattern of the site or area, including through the
alteration of the course of stream or river, in a manner, which would result in substantial
erosion or siltation on or off site?
d. Substantially alter the existing drainage pattern of the site or area, including through the
alteration of the course of a stream or river, or substantially increase the rate or amount of
surface runoff in a manner, which would result in flooding on or off site?
e. Create or contribute runoff water which would exceed the capacity of existing or planned
storm water drainage systems or provide substantial additional sources of polluted runoff?
f. Otherwise substantially degrade water quality?
g. Place housing within a 100-year flood hazard area as mapped on a federal Flood Hazard
Boundary or Flood Insurance Rate Map or other flood hazard delineation map?
h. Place within a 100-year flood hazard area structures which would impede or redirect flood
flows?
i. Expose people or structures to a significant risk of loss, injury, or death involving flooding,
including flooding as a result of the failure of a levee or dam?
j. Inundation by seiche, tsunami, or mudflow?
'1 4 ? Summary of Findings in PrPx/inii-rz Assessments
The Previous Assessments found that construction and operation of the project could result in
potentially significant erosion, runoff, and water quality impacts. However, implementation of MM
W-2, MM W-3, MM W-5, and MM W-8 would reduce construction and operation erosion runoff and
water quality impacts to less than significant levels. MM W-2would ensure that watertrucks are used
during construction for dust control; MM W-3 would ensure the development of a hydrology master
plan prior to issuance of grading permits to ensure that proposed storm drainage and hydrologic
improvements would conform to applicable regulations; MM W-5 would ensure the development of
a Storm Water Pollution Prevention Program (SWPPP) to develop Best Management Practices (BMPs)
thatwould reduce erosion, runoff, and water quality impacts to acceptable threshold levels; and MM
W-8 would ensure that the design of the project would incorporate proper engineering controls to
accommodate design year storms that would incorporate filtration systems and protect groundwater
or surface water runoff.
Domestic and irrigation water is provided throughout La Quinta and the eastern Coachella Valley by
the Coachella Valley Water District (CVWD). The main source of potable water provided to the City is
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September 2025
3.0—Impact Analysis
from an underground aquifer, known as the Whitewater River Subbasin, beneath the valley floor.
Irrigation water is supplied from this same aquifer and from the Colorado River via the Coachella
Canal and is consumed generally in the area from Indio and La Quinta south to the Salton Sea. Water
consumption related to the project's residential, commercial and irrigation uses could potentially
result in significant water use.
A Water Supply Assessment (WSA) and Water Supply Verification (WSV) approved by the Coachella
Valley Water District (CVWD) for the project confirmed that CVWD had sufficient water supplies
available to meet the demands of the project. Additionally, the Project would incorporate MM W-1,
MM WA and MM W -7 to further minimize water use, resulting in less than significant water use
impacts. MM W-1 would require the use of non -potable sources of water for irrigation at such time it
becomes available to the Project Site; MM W-4 would require drought tolerant landscaping as
feasible to reduce water consumption; and MM W-7 would require a Golf Course Management Plan
to reduce irrigation runoff and percolation into the groundwater basin.
At the time of the 2002 MND, there were groundwater wells within the site and MM W-6, which
required abandoning groundwater wells no longer in use was implemented. No groundwater wells
exist on the site.
The Project Site is not within a 100-year flood hazard area, nor near a large body of water that would
be able to cause a significant seiche, tsunami or mudflowto the site. The General Plan considers the
Coachella Canal, which bisects the Project Site, as a levee. However, the General Plan EIR confirms
that no significant inundation would occur if the canal banks fail.
No new information or changed circumstances was identified in the Previous Assessments that
resulted in new or more severe impacts related to water. All impacts remained less than significant
with the incorporation of MM W-1 through MM W-8.
Previously Identified Mitigation Measures
MM W-1 At such time that non -potable water sources become available to the Project Site,
the Project shall be connected to this resource and utilize the non -potable water for
irrigation purposes.
MM W-2 During construction activities, water trucks are to acquire water from non -potable
water sources, such as reclaimed water and/or canal water.
MM W-3 A hydrology master plan shall be prepared for the Project Specific Plan. Further, a
hydrology study shall be prepared forthe hydrology master plan and submitted to the
City of La Quinta for approval priorto the issuance of grading permits. This study shall
demonstrate that the Project would construct storm drainage and hydrologic
improvements, such as on -site stormwater retention basins, that conform to the
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City`s master hydrology and storm drain improvement program as well as implement
regional and local requirements, policies, and programs.
MM W-4 Drought tolerant landscaping shall be utilized as a means of reducing water
consumption.
MM W-5 Prior to the initiation of any construction activity on the Project Site, a Notice of Intent
(NOI) to conduct construction activities under the general NPDES construction
permit shall be filed. Under the conditions of this NPDES permit a Storm Water
Pollution Prevention Plan (SWPPP), and Monitoring Plan are required. The SWPPP
shall include Best Management Practices (BMPs) in compliance with the NPDES
program requirements.
MM W-6 Any existing groundwater wells located on the site that are no longer in use shall be
abandoned in accordance with federal, State, and local laws and regulations prior to
the issuance of building permits.
MM W-7 Prior to operation of the golf course, the golf course operator shall prepare a Golf
Course Management Plan that includes an irrigation plan, water usage plan, and
chemical management plan in order to reduce, to the extent feasible, golf course
irrigation runoff and percolation into the groundwater basin.
MM W-8 Design of new roads, golf courses, man-made ponds, common landscape areas,
storm water basins, and otherfacilities shall incorporate proper engineering controls
to channel storm and irrigation runoff into detention/retention facilities that are sized
to accommodate design year storms and that incorporate filtration systems or other
devices to reduce the potential for herbicides, pesticides, fertilizers, and other
contaminants to percolate to groundwater or surface water runoff.
3-43 Existina Condition -
The Project Site is developed with the Arnold Palmer Classic Golf Course, Ahmanson House, partially
developed hotel and residential buildings, and has been mass graded and vegetated to minimize soil
erosion. The hydrology design includes the use of the golf course as part of the storm water control
system. The golf course has sufficient capacityto accommodate existing on -site drainage quantities.
On -site drainage systems have been constructed since the development of the site in 2002.
A major storm drain exists along the northerly property frontage within Avenue 52 which extends
2,200 feet to the Calle Rondo storm drain from the northwesterly corner of the site to a point just past
the Avenue 52/SilverRock Way entrance and then back onto the resort property into the second golf
course envelope (Planning Area 8).
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3.0—Impact Analysis
The Arnold Palmer Golf Course is irrigated using Coachella Cana lwater. The Specific Plan Area is not
located within a 100-year or 500-year floodp[ain.12
3.4.4 Analysis of Proposed Project
Construction and operation of the 2025 Project could potentially result in erosion, runoff, and water
quality impacts. Although the 2025 Project involves reduced development intensity compared to the
land uses analyzed in the Previous Assessments, these impacts may still occur. However, with the
incorporation of mitigation measures MM W-2, MM W-3, MM W-5, and MM W-8, potential erosion,
runoff, and water quality impacts would be reduced to less than significant levels.
As discussed above, a WSA and WSV were developed for the project analyzed in the Previous
Assessments and confirmed that CVWD would be able to provide a sufficient amount of water for
the demands of the original, more intense project. The 2020 Coachella Valley Regional Urban Water
Management Plan confirms that CVWD has adequate water supplies to 2045 under normal, single,
and multiple dryyears.13
The water demand estimate for the SilverRock Resort Project in the 2006 Water Supply Assessment
(WSA) approved for the project was approximately 2,361 acre-feet per year. The estimated water
demand for the 2025 Project is approximately 2,376 acre-feet peryear.14 This potable water demand
is less than one percent greater than the demand estimate in the approved WSA. This incremental
increase does not represent a substantial increase in water demand for the project. The 2025 Project
would have a reduced development intensity, further reducing water demand. Additionally, the
project would incorporate MM W-1, MM W-4, and MM W-7 to further minimize water use, resulting in
less than significant water use impacts.
As mentioned above, the Project Site is not located within a 100-year flood zone, nor would the
Project Site be significantly impacted by a levee/dam, or seiche, tsunami or mudflow from an open
body of water.
Water impacts associated with the 2025 Project would be less intense than those identified in the
Previous Assessments and would be less than significant with the incorporation of MM W-1 to MM
W-5 and MM W-7 to MM W-8 and applicable regulatory requirements. No new significant impacts or
increase in the severity of any previously identified significant impacts would result from changes to
the 2025 Project, new information, or changes to the circumstances under which the 2025 Project
will be undertaken.
12 City of La Quinta. 2035 La Quinta General Plan. Chapter IV, Environmental Hazards. Flooding and Hydrology. "Exhibit
IV-6. FEMA Flood Zones and Flood Control Facilities." 2013. https://www.Laquintaca.gov/business/design-and-
development/planning-division/2035-1a-quinta-general-plan. Accessed July 2025.
13 Coachella Valley Water District.2020 Coachella Valley Regional Urban Water Management Plan. 2021.
14 677.1 acre-feet per year (residential) + 142.2 acre- feet per year (commercial) + 1,457.9 acre-feet per year (open
space) +98. 7 acre-feet per year (public park) = 2,376. 6 acre-feet per year. CVWD, WSA and WSV for the proposed
SilverRock Resort Specific Plan, (2006) Table 3. 1- 1.
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3.0—Impact Analysis
3.5 AIR QUALITY
3.5.1 Thresholds
a. Conflict with or obstruct implementation of the applicable air quality plan?
b. Violate any air quality standard or contribute substantially to an existing or projected air
quality violation?
c. Result in a cumulatively considerable net increase of any criteria pollutant for which the
project region is non -attainment under an applicable federal or state ambient air quality
standard (including releasing emissions which exceed quantitative thresholds for ozone
precursors)?
d. Expose sensitive receptors to substantial pollutant concentrations?
e. Create objectionable odors affecting a substantial number of people?
3.5.2 Summary of Findings in Previous Assessments
The Previous Assessments concluded that the development of the Project Site would not conflict
with the applicable air quality plan, because all construction and operational activities would remain
below the South Coast Air Quality Management District's ("SCAQMD") recommended daily
thresholds for all criteria pollutants. The Previous Assessments also found that previous projects
would not violate any air quality standards with the incorporation of MM AQ-1 through MM AQ-13,
listed below. MM AQ-1 to MM AQ-3 require dust control, MM AQ-3 also included measures for
efficient construction traffic management, MM AQ-4, MM AQ-5, and MM AQ-7 through MM AQ-10
require the use of energy efficient materials and appliances, MM AQ-6 implemented trees for
shading, MM AQ-11 and MM AQ-12 require expansion of transit and more efficient on -site
circulation, and MM AQ-13 requires the use of low VOC paints.
Construction and operational air quality modeling previously conducted in the Previous
Assessments were based on the expected location, size, and development of the Project Site.
According to SCAQMD, if an individual project results in air emissions of criteria pollutants that are
below SCAQMD's recommended daily thresholds for project -specific impacts, then the project
would not result in a cumulatively considerable net increase of these criteria pollutants. The Previous
Assessments concluded that emissions resulting from construction and operations were not
projected to exceed any air quality emission significance thresholds with implementation of AQ-1
through 13, described above. Therefore, the Project would not result in a cumulative considerable
net increase of any criteria pollutant for which the Project Site region is designated as being non -
attainment.
The Project Site is developed with the Arnold Palmer Classic Golf Course and Ahmanson House, with
the nearest sensitive receptors being the surrounding residential and golf communities to the north,
east, and south. The nearest sensitive receptors were located in PGA West and the Hideaway
residential and golf communities, approximately 125 feet and 150 feet to the south and east,
respectively, of the boundaries of the Project Site. The localized significance thresholds (LSTs) were
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3.0—Impact Analysis
used to address potential air quality impacts to the nearby residents and neighborhoods surrounding
the Project Site. The land uses included in the Previous Assessments were found to be typical of uses
found throughout the City and were not found to generate on -site construction or operational
emissions in excess of the site -specific LSTs. None of the uses were found to have any special
concern with regards to harmful odorous pollutants that would negatively affect sensitive receptors
located within the vicinity of the Project Site.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to air quality. All impacts remained less than
significant with the incorporation of mitigation measures identified in the Previous Assessments.
Previously Identified Mitigation Measures
MM AQ-1 Construction equipment shall be phased and operated in a manner to ensure the
lowest construction -related pollutant emission levels practical, and shall require the
use of water trucks, temporary irrigation systems and other measures which will limit
fugitive dust emissions during site disturbance and construction.
MM AQ-2 Air quality control measures identified in the Coachella Valley PM10 State
Implementation Plan (SIP) shall be implemented.
MM AQ-3 A PM10 Management Plan for construction operations shall be submitted prior to the
issuance of grading permits. The plan shall include dust management controls such
as:
• Water site and equipment morning and evening
• Spread soil binders on site, unpaved roads, and parking areas
• Re-establish ground cover on construction site through seeding and watering
• Pave construction roads, where appropriate
• Operate street -sweepers on paved roads adjacent to site
The following measures shall be implemented to reduce construction related traffic
congestion:
• Configure construction parking to minimize traffic disturbance
• Minimize obstruction of through -traffic lanes
• Provide flag person to ensure safety at construction sites, as necessary
• Schedule operations affecting roadways for off-peak traffic hours
• Provide rideshare incentives to construction personnel
MM AQ-4 Timeshare and golf facility construction shall utilize solar or low emission water
heaters to reduce natural gas consumption and emissions.
MM AQ-5 Timeshare and golf facility construction shall utilize energy -efficient appliances to
reduce energy consumption and emissions.
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3.0—Impact Analysis
MM AQ-6 Shade trees shall be provided in close proximity to Timeshare, hotel and golf facility
structures to reduce building heating/cooling needs.
MM AQ-7 Timeshare and golf facility construction shall utilize energy -efficient and automated
controls for air conditioners to reduce energy consumption and emissions.
MM AQ-8 Timeshare and golf facility construction shall utilize special sunlight -filtering window
coatings or double -paned windows to reduce thermal gain or loss.
MM AQ-9 Timeshare and golf facility construction shall utilize automatic lighting on/off
controls and energy -efficient lighting (including parking areas) to reduce electricity
consumption and associated emissions.
MM AQ-10 Timeshare and golf facility construction shall utilize light-colored roofing materials in
residential construction as opposed to dark roofing materials.
MM AQ-11 Bus stops shall be positioned at locations on and adjacent to the site to be
determined in coordination with the bus transit service provider that will serve the
Project area. Bus stops should be generally located 1/4-mile walking distance from
Timeshare units.
MM AQ-12 The golf course shall design on -site circulation plans for clubhouse parkingto reduce
vehicle queueing.
MM AQ-13 To reduce VOC emissions associated with architectural coatings, water -based or
low-VOC coatings shall be used and applied with spray equipment with high transfer
efficiency and/or the need for paints and solvents should be reduced by using pre -
coated building materials or naturally colored building materials.
3.5.3 r-xistiny Condition -
The Project Site is located within the Salton Sea Air Basin within the jurisdiction of the SCAQMD. The
City of La Quinta is subject to high intensity wind events year-round. During fall and winter months,
high-pressure systems from the north can conflict with low-pressure systems from the south, and
create a condition known as the Santa Ana winds, which can blow for multiple days at high speeds.
These strong winds sweep up, suspend and transport large quantities of sand and dust, reducing
visibility, damaging property, and constituting a significant health threat.
The Federal and State Clean Air Act standards are the thresholds by which regional ambient air
quality is measured. In the Coachella Valley air quality has exceeded state and federal standards for
ozone and particulate matter. Areas where air pollution levels persistently exceed the state or
national ambient air quality standards may be designated "nonattainment." For evaluation purposes,
the SCAQMD territory is divided into 38 source receptor areas (SRAs). These SRAs are designated to
provide a general representation of the local meteorological, terrain, and air quality conditions within
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3.0—Impact Analysis
the particular geographical area. The Project Site is within SRA 30, Coachella Valley.15 The nearest
air monitoring station SCAQMD operates is located at 46990 Jackson Street in the City of Indio and
monitors 03, PM1o, and PM2.5. The nearest monitoring station to the Project Site that monitors NO2 is
the Palm Springs Fire Station located at 590 Racquet Club Road in the City of Palm Springs. The
Coachella Valley portion of the Salton Sea Air Basin is currently designated as being in nonattainment for
the federal ozone and PM10 and nonattainment for the State ozone and PM1o.
As detailed in Section 2: Project Description, the Project Site consists of areas that have been
previously graded, developed, or partially developed as shown in Figure 2-3: Project Site Aerial
Photographs. SilverRock Park is located in the northwest; the Arnold Palmer Classic Golf Course,
Ahmanson House, and a series of partially constructed buildings associated with the previous
approvals are located in the western portion of the site, as described in Table 2-1: Partially
Constructed Buildings, above.
3.5.4 Analysis of Proposed Project
SCAQMD is responsible for controlling emissions, primarily from stationary sources. SCAQMD, in
coordination with the Southern California Association of Governments (SCAG), is also responsible
for developing, updating, and implementing the Air Quality Management Plan (AQMP) for the air
basins. An AQMP is a plan prepared and implemented by an air pollution district for a county or region
designated as being in nonattainment of the National Ambient Air Quality Standards (NAAQS) or
California Ambient Air Quality Standards (CAAQS). SCAQMD adopted the Final 2022 Air Quality
Management Plan (2022 AQMP) on December 2, 2022.16The AQMP includes transportation control
measures developed by SCAG from its 2020 2045 Regional Transportation Plan / Sustainable
Communities Strategy (2020-2045 RTP/SCS), as well as the integrated strategies and measures
needed to meet the NAAQS. The AQMP demonstrates the attainment of the 1-hour and 8-hour ozone
NAAQS, as well as the latest 24-hour and annual PM2.5 standards.
Projects considered to be consistent with the Air Quality Management Plan (AQMP) would not
interfere with the attainment of the air quality levels identified in the AQMP because this growth is
included in the projections utilized in the formulation of the AQMP. A project is consistent with the
AQMP, in part, if it is consistent with the population, housing, and employment assumptions that
were used in the development of the AQMP.
15 South Coast Air Quality Management District (SCAQMD). "General Forecast Areas and Air Monitoring Areas." Map.
http://www.agmd.gov/docs/default-source/default-document-library/map-of-monitoring-areas.pdf. Accessed July
2025.
16 SCAQMD. Final2022Air Quality Management Plan. December 2, 2022. http://www.aqmd.gov/docs/defauLt-
source/clean-air-pLans/air-quality-management-pLans/2022-air-quaLity-management-plan. Accessed July 2025.
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3.0—Impact Analysis
It should be noted that the Specific Plan was accounted for in the growth projections in the 2035
General Plan.17 As shown in Table 2-2: Comparative Land Use Summary: Prior Environmental
Reviews and the 2025 SilverRock Master Plan, the 2025 Project would result in a reduced
development intensity. As detailed in Section 3.2: Population and Housing, the 2025 Project would
increase the population and housing well within the growth projections within the City.
As discussed further below, emission from construction and operation of the proposed Project would
fall below the applicable thresholds with the implementation of MM AQ-1 through MM AQ-13.18
Therefore, the 2025 Project would not conflict with or obstruct the implementation of an applicable
air quality plan.
Construction
The construction emissions forthe 2025 Projectwere calculated using construction emission factors
contained in the California Emissions Estimator Model (CaIEEMod) model (Appendix A). The
emission calculations assumed the use of standard construction practices, such as compliance
with SCAQMD Rule 403 (Fugitive Dust), to minimize the generation of fugitive dust, SCAQMD Rule
403.1 (Supplemental Fugitive Dust Control Requirements for Coachella Valley Sources), and Rule
1113 (Architectural Coatings). Compliance with Rule 403, Rule 403.1, and Rule 1113 is mandatory
for all construction projects. Specifically, Rule 403 and Rule 403.1 require watering of exposed
surfaces and unpaved roads three times daily, which is estimated to reduce fugitive dust emissions
of particulates less than 10 microns in diameter (PM,o) and particulates less than 2.5 microns in
diameter (PM2.5) by 61 percent, requires a fugitive dust control plan for construction projects, and
requires reductions in thevolatile organic compounds (VOC) content of coatings. Additionally, during
construction, all off -road construction equipment greater than 50 horsepower must meet USEPATier
3 emission standards with Level 3 DPF to minimize emissions of NO,, associated with diesel
construction equipment.
As discussed above, construction of the 2025 Project would include two phases - Phase I and Phase
II. Phase I would include the development of PAs 1 to 7 and Phase II would include the development
of PA 8. Phase I is anticipated to occur over the course of seven years, with a start in November 2026
and completion by April 2033. Table 3.5-1: Project Construction Schedule provides estimates of
the dates and durations of each of the activities that will take place during construction, as well as a
brief description of the scope of work. Future dates represent approximations based on the general
Project timeline and are subject to change, pending unpredictable circumstances that may arise. It
is important to note Project delays that affect the corresponding time period in which construction
activities would occur compared to the analysis time period would result in lower emissions due to
newer equipment, regulatory requirements, and greater engine efficiencies. Therefore, the reported
17 City of La Quinta. 2035 La Quinta General Plan. Economic Development. 2013. p. II-168.
18 MM AQ-4 through MM AQ-10 include requirements applicable to both timeshares and golf course facilities; however,
timeshares are not included in the 2025 Project. These mitigation measures remain applicable to the 2025 Project.
Meridian Consultants 3.0-22 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
construction emissions are overstated compared to the emissions associated with a delayed
construction schedule.
Planning Area 1,3,4 & 5
Demolition
11/1/2026
12/13/2026
30
Grading
12/147/2026
1/22/2027
30
Building Construction
1/23/2027
3/2/2029
550
Paving
3/3/2029
3/30/2029
20
Architectural Coating
3/3/2029
5/25/2029
60
Planning Area 2
Demolition
11/1/2027
12/10/2027
30
Grading
12/11/2027
1/21/2028
30
Building Construction
1/22/2028
4/25/2031
850
Paving
1/22/2028
4/25/2031
850
Architectural Coating
1/22/2028
4/25/2031
850
Planning Area 6
Grading
1/1/2027
2/11/2027
30
Building Construction
2/19/2027
10/25/2029
700
Paving
2/19/2027
10/25/2029
700
Architectural Coating
2/19/2027
10/25/2029
700
Planning Area 7
Grading
1/1/2030
3/4/2030
45
Building Construction
3/5/2030
4/11/2033
810
Paving
3/5/2030
4/11/2033
810
Architectural Coating
3/5/2030
4/11/2033
810
Planning Area 8
Grading
1/1/2035
10/10/2036
465
Building Construction
10/11/2036
9/8/2045
2,325
Paving
10/11/2036
9/8/2045
2,325
Architectural Coating
10/11/2036
9/8/2045
2,325
Source: Refer to Modeling in Appendix A: Air Quality and Greenhouse Gas Emissions Outputs.
The estimated maximum daily emissions were estimated based on the construction schedule
provided in Table 3.5-1 and are presented in Table 3.5-2: Highest Daily Construction Pollutant
Emissions. These estimates are based on the expected location, size, and development of the
proposed Project uses. The analysis assumes that all of the construction equipment and activities
would occur continuously over the day and that construction activities in each planning area would
Meridian Consultants 3.0-2 3 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
overlap. Therefore, the input values used in this analysis are considered conservative, as most
equipment operates only a fraction of each workday and many of the activities would not overlap on
a daily basis. As shown in Table 3.5-2, construction activities associated with the development of
the 2025 Project would not result in an exceedance of VOC, nitrogen oxides (NOx), carbon monoxide
(CO), sulfur oxide (SOx), PM,o, and PM2.5thresholds. Impacts with regard to these air pollutants would
be less than significant, even when assuming overlapping construction activities which are unlikely
to occur. Potential construction emission impacts on sensitive receptors are analyzed below.
Maximum Emission 56.7 65.3 81.4 73.5 9.9 5.0
SCAQMD threshold 75 100 550 150 150 55
Threshold Exceeded? No No No No No No
Source: Refer to Modeling in Appendix A: Air Quality and Greenhouse Gas Emissions Outputs.
Abbreviations: CO = carbon monoxide; NOx = nitrogen oxide; PM10 = particulate matter less than 10 microns; PM2.5
= particulate matter less than 2.5 microns; VOC = volatile organic compounds; SCAQMD = South Coast Air Quality
Management District, SOx = sulfur oxide.
Operation
Operational emissions were estimated usingthe CalEEMod software, which was used to forecast the
daily regional emissions that would occur during long-term Project operations.
Operation of the 2025 Project has the potential to generate criteria pollutant emissions through
vehicle trips traveling to and from the Project Site. In addition, emissions would result from area
sources on site, such as landscaping equipment and use of consumer products. Area -source
emissions are based on landscaping equipment and consumer products (including paint) usage
rates provided in CalEEMod.
The estimated operational emissions based on development of all the proposed land uses are
presented in Table 3.5-3: Operational Emissions. As shown in Table 3.5-3, the 2025 Project's
operational emissions would not exceed regional daily VOC, NO, CO, SOx, PM,o, and PM2.5
thresholds. Therefore, daily operational emissions generated by the proposed Project would be less
than significant.
Meridian Consultants 3.0-24 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
Maximum Emission 52.2 33.9 331.0 1.0 87.2 22.4
SCAQMD threshold 55 55 550 150 150 55
Threshold exceeded? No No No No No No
Source: Refer to Air Quality and Greenhouse Gas Modeling data sheets in Appendix A: Air Quality and Greenhouse Gas
Emissions Outputs.
As shown in Table 3.5-3, operational emissions for the 2025 Project do not exceed the SCAQMD
thresholds of significance. According to SCAQMD, if an individual project results in air emissions of
criteria pollutants that are below the SCAQMD's recommended daily thresholds for project -specific
impacts, then the project would not result in a cumulatively considerable net increase of these
criteria pollutants. By applying SCAQMD's cumulative air quality impact methodology,
implementation of the 2025 Project would not exceed the thresholds for these criteria air pollutants,
and no significant cumulative impacts would occur. Therefore, the 2025 Project would not result in a
cumulatively considerable net increase of criteria air pollutants. and would not result in a cumulative
considerable net increase of any criteria pollutant for which the 2025 Project region is designated as
in non -attainment.
Sensitive Receptors
SCAQMD considers a sensitive receptor to be a person in the population who is particularly
susceptible to health effects due to exposure to an air contaminant. The nearest sensitive receptors
are located in PGA West and the Hideaway residential and golf communities, approximately 125 feet
and 150 feet to the south and east, respectively of the boundaries of the proposed Project Site.
Localized Significance Threshold
The localized significance thresholds (LSTs) used in this analysis address whether there are potential
impacts to residents and neighborhoods located around and near the Project Site. The 2025 Project
assumed up to 3 acres was disturbed each day. The allowable mass -rate emissions were determined
using the specified thresholds for a 3-acre site at a distance of 50 meters (150 feet) from the nearest
sensitive receptor as determined by SCAQMD.
The local significance thresholds are based on the SCAQMD's Final Localized Significance Threshold
Methodology (LST Methodology)19 guidance document for short -duration construction activities.
19 SCAQMD. Final Localized Significance Threshold (LST) Methodology. July 2008. Accessed March 2025.
http://www.agmd.gov/docs/default-source/cega/hand boo k/localized -sign ificance-thresholds/final-lst-
methodology-document.pdf?sfvrsn=2.
Meridian Consultants 3.0-2 5 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
The SCAQMD recommends the evaluation of localized air quality impacts to sensitive receptors in
the immediate vicinity of the Project site because of construction activities.
The LST Methodology provides lookup tables of emissions that are based on construction projects of
up to five acres in size. The threshold is a daily emissions level and thus the acreage is an
approximation of the daily disturbed area.20 As such, the ambient conditions for a 3.0-acre site
within SRA 30 were used for ambient conditions in determining appropriate threshold levels.
The construction and operation analysis for LSTs for the proposed Project are shown in Table 3.5-4:
Localized Construction and Operational Emissions. As shown in Table 3.5-4, the on -site
emissions incorporate the required regulations for compliance with Rule 403 (Fugitive Dust), Rule
403.1, and Tier 3 engines for off -road construction equipment. The construction of the proposed
Project would not generate on -site emissions in excess of the site -specific LSTs for NO, CO, PM1o,
and PM2.5. Given this, the 2025 Project would result in a less than significant impact on sensitive
receptors located north, east, and south of the Specific Plan Area.
According to the SCAQMD, while almost any source may emit objectionable odors, some land uses
will be more likely to produce odors because of their operation. Land uses that are more likely to
produce odors include agriculture, chemical plants, composting operations, dairies, fiberglass
molding, landfills, refineries, rendering plants, rail yards, and wastewater treatment plants. The
proposed Project does not contain any active manufacturing activities. Therefore, objectionable
odors would not be emitted by the proposed Project.
Construction
Maximum emissions
27.2
27.6
3.5
1.9
LST threshold
258
Z337
29
8
Threshold Exceeded?
No
No
No
No
Operational
Area/energy emissions
7.0
45.4
0.6
0.6
LST threshold
258
Z337
7
2
Threshold Exceeded?
No
No
No
No
Source: Modeling results are located
in Appendix A: Air Quality and Greenhouse
Gas Emissions Outputs.
20 SCAQMD. Example 1 of SCAQMD "Fact Sheet" for Applying CalEEMod to Localized Significance Thresholds.
http://www.agmd.gov/docs/defau It -sou rce/cega/hand boo k/localized-significance-th resholds/caLee mod -
guidance.pdf?sfvrsn=2. Accessed July 2023.
Meridian Consultants 3.0-26 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
Abbreviations: CO = carbon monoxide; NOx = nitrogen oxide; PM10 = particulate matter less than 10 microns; PM2.5
= particulate matter less than 2.5 microns
Air quality impacts associated with the 2025 Project would be similar to those identified in the
Previous Assessments, would be less than significant, and would be further reduced with the
implementation of MM AQ-1 through MM AQ-13.21 No new significant impacts or increase in the
severity of any previously identified significant impacts would result from changes to the 2025
Project, new information, or changes to the circumstances under which the 2025 Project will be
undertaken.
21 MM AQ-4 through MM AQ-10 include requirements applicable to both timeshares and golf course facilities; however,
timeshares are not included in the 2025 Project. These mitigation measures remain applicable to the 2025 Project.
Meridian Consultants 3.0-2 7 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
3.6 TRANSPORTATION / CIRCULATION
3.6.1 Threbiiuiub
a. Exceed the capacity of the existing circulation system, based on an applicable measure of
effectiveness (as designated in a general plan policy, ordinance, etc.), taking into account all
relevant components of the circulation system, including but not limited to intersections,
streets, highways and freeways, pedestrian and bicycle paths, and mass transit?
b. Conflict with an applicable congestion management program including, but not limited to
level of service standards and travel demand measures, or other standards established by
the county congestion management agency for designated roads or highways?
c. Result in a change in air traffic patterns, including either an increase in traffic levels or a
change in location that results in substantial safety risks?
d. Substantially increase hazards due to a design feature (e.g., sharp curves or dangerous
intersections) or incompatible uses (e.g., farm equipment)?
e. Result in inadequate emergency access?
f. Conflict with adopted policies, plans, or programs supporting alternative transportation (e.g.,
bus turnouts, bicycle racks)?
3.6.2 ..aum ma, y of Findings in Previous Assessments
The Previous Assessments found that the development of the planned golf courses and resort uses
were consistent with the General Plan land use designations for the site. Based on trip generation
rates forthe planned uses, itwas estimated that the land uses analyzed in the Previous Assessments
would generate a total of approximately 20,020 daily trips with 1,420 AM peak hour trips and 1,830
PM peak hour trips, if internal trips are not accounted for. This worst case estimate overstates actual
trip generation because it double counts some trips as many of the resort hotel, golf and retail village
trips would be between these different uses and would stay within the Specific Plan Area for this
reason.
The City's General Plan established the level of service (LOS D) as the City's minimum level of service
for intersections. The site is bounded by Jefferson Street, Avenue 52, and Avenue 54. The 2035
forecasted intersection LOS during the peak season based on the recommended intersection
improvements from the 2035 General Plan would result in LOS C during both peak hour periods at
Washington Street and Avenue 52; LOS C during the AM Peak Hour and LOS D during the PM Peak
Hour at Jefferson Street and Avenue 52; and LOS B during both peak hour periods with a new traffic
signal at Jefferson Street and Avenue 54. It should be noted that a newtraffic signal has been installed
at the SilverRock Way and Avenue 52 intersection as outlined in MM TRANS-1, resulting in less than
significant impacts to LOS.
The Previous Assessments determined thatthe project would not impact airtraffic as it is not located
in an area that is adjacent to an airport. The nearest airport was approximately 7 miles away from the
Project Site.
Meridian Consultants 3.0-2 8 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
The Previous Assessments concluded that development of the project would have less than
significant impacts related to hazards and safety from design features (e.g., sharp curves or
dangerous intersections) or incompatible uses (e.g., farm equipment), inadequate emergency
access to nearby uses, insufficient parking capacity on site or off site, and hazards or barriers for
pedestrians or bicyclists. The 2002 MND also concluded that the 2002 MND Project would have no
impacts in regard to conflicts with adopted policies supporting alternative transportation (e.g., bus
turnouts, bicycle racks) and rail, waterborne, or air traffic impacts.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to transportation and circulation. All impacts
remained less than significant with mitigation identified in the Previous Assessments.
Previously Identified Mitigation Measures
MM TRANS-1 A traffic signal shall be installed at the Project entrance and Avenue 52, the Project
entrance and Jefferson Street and at the intersection of Avenue 54 and Jefferson
Street when and if they are warranted. The developer of the site shall be responsible
for payment of a fair share of the cost of installing these signals.
3.6.3 Existing Conditions
A traffic impact analysis (TIA) was prepared for the 2035 General Plan to assess the existing roadway
network, collect data on and measure the level of use and service along the existing roadways in the
General Plan study area.
The City has developed and maintains an extensive arterial roadway network, serving both local and
inter -city traffic. The City road network has been built essentially along a north -south grid with
interconnections with major arterials passing through adjacent jurisdictions.22 The Project Site is
bounded by Jefferson Street, Avenue 52, and Avenue 54.
Jefferson Street is oriented in a north -south direction and consists of three lanes in each direction. It
is classified as a Major Arterial north of Avenue 54 and as a Modified Secondary Arterial between
Avenue 58 and Avenue 62. Jefferson Street provides access to State Highway 111, southern parts of
the City and to Interstate 10 north of City limits.
Avenue 52 is oriented in an east -west direction and is classified as a Primary Arterial throughout the
City and the City's Sphere of Influence.
Avenue 54 is an east -west street consisting of two lanes in each direction between Jefferson Street
to east of Monroe Street.
22 City of La Quinta. 2035 La Quinta General Plan EIR.
Meridian Consultants 3.0-29 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
Avenue 52 is designated as a Class 3 golf cart path west of SilverRock Way to Eisenhower Drive.
3.6.4 Analysis of Propubed Project
An updated trip generation estimate for the 2025 Project is provided in Table 3.6-1: SilverRock Trip
Generation Comparison: 2018 vs. 2025 Master Plan below. As shown in this table, the 2025 Master
Plan would generate approximately 2,800 fewer daily trips than the 2018 Master Plan.
Golf Course 27 Holes 820 36 Holes 1,094
Hotel
Single -Family
Attached Housing
Single -Family
Detached Housing
Shopping Plaza (40-
150k sq. ft., no
supermarket)
Net Raw Project
Trips
Internal Captures
Net New Project
Trips
340 Rooms 2,717
709 Dwelling Units 5,105
154 Rooms 1,230
323 Dwelling Units 2,326
35 Dwelling Units
330
122 Dwelling Units 1,150
40 x 1,000 sq. ft.
2,701
40 x 1,000 sq. ft. 2,701
Gross Leasable Area
GLA
(GLA)
11,673
8,501
(1,284)
(930)
10,389
7,571
Source: Fehr and Peers, 2025. Using Institute of Transportation Engineers' (ITE) Trip Generation Manual, 11th Edition, 2021.
As discussed above, a portion of MM TRANS-1 has already been implemented with the installation
of a traffic signal at the intersection of SilverRock Way and Avenue 52. The 2035 General Plan
projected that the intersection of Jefferson Street and Avenue 54 would operate at Level of Service
(LOS) B with a traffic signal in place. Currently, this intersection remains unsignalized. MM TRANS-1
will be implemented as warranted to ensure that surrounding intersections continue to operate at
LOS D or better.
The 2025 Project would not impact air traffic as it is not located in an area that is adjacent to an
airport. The nearest airport was approximately 7 miles away from the Project Site.
The 2025 Project would not substantially increase hazards due to a design feature (e.g., sharp curves
or dangerous intersections) or incompatible uses because the circulation pattern follows a similar
circulation route planned in the Specific Plan. It should be noted that the 2025 Project proposes a
minor re -alignment of internal roadways, including portions of SilverRock Way and Ahmanson Lane.
This adjustment would shift the road awayfrom its current location between the proposed public golf
clubhouse and the first hole of the Arnold Palmer Golf Course, rerouting it around the clubhouse to
Meridian Consultants 3.0-30 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
improve pedestrian safety. As this modification involves internal circulation and does not affect
external roadways, it would not introduce new hazards related to roadway design or circulation. It
would, however, improve safety on -site, which represents a beneficial impact. Development of all
roads and pedestrian facilities would comply with applicable City standards. The 2025 Project would
adhere to the Project Site's land use designations and would have a lower development intensity
compared to the Previous Assessments, resulting in no conflicts with applicable transportation
regulations and less than significant impacts.
Transportation and circulation impacts associated with the 2025 Project would be similar to those
identified in the Previous Assessment and would be less than significant with the implementation of
TR-1. No new significant impacts or increase in the severity of any previously identified significant
impacts would resultfrom changes to the Project, new information, or changes to the circumstances
under which the Project will be undertaken.
Meridian Consultants 3.0-31 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
3.7 BIOLOGICAL RESOURCES
i nres�iu,un,
a. Have a substantial adverse effect, either directly or through habitat modifications, on any
species identified as a candidate, sensitive, or special status species in local or regional plans,
policies, or regulations, or by the California Department of Fish and Wildlife or U.S. Fish and
Wildlife Service?
b. Have a substantial adverse effect on any riparian habitat or other sensitive natural
community identified in local or regional plans, policies, and regulations or by the California
Department of Fish and Wildlife or U.S. Fish and Wildlife Service?
c. Have a substantial adverse effect on federally protected wetlands as defined by Section 404
of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through
direct removal, filling, hydrological interruption, or other means?
d. Interfere substantially with the movement of any native resident or migratory fish or wildlife
species or with established native resident or migratory wildlife corridors, or impede the use
of native wildlife nursery sites?
e. Conflict with any local policies or ordinances protecting biological resources, such as a tree
preservation policy or ordinance?
f. Conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community
Conservation Plan, or other approved local, regional, or state habitat conservation plan?
3.7.2 Summary of Findings in Previous Assessments
Previous Assessments identified that the flat portion of the Project Site had historically been used for
agricultural purposes and the majority of this portion of the site consisted of disturbed non-native
vegetation. Five (5) vegetation communities were identified on the site including disturbed
vegetation, agricultural lands, tamarisk groves, desert saltbush scrub, and mesquite hummocks.
A series of biological surveys were conducted on the Project Site between 1999 and 2002. Focused
surveys for Coachella Valley fringe -toed lizard, flat -tailed horned lizard, Coachella Valley round -
tailed ground squirrel, Palm Springs pocket mouse, Coachella Valley grasshopper and peninsular
bighorn sheep were conducted based on the recommendation of the United States Fish and Wildlife
Service (USFWS) and California Department of Fish and Game (CDFG) (now referred to as California
Department of Fish and Wildlife (CDFW)) in 1999. None of these species were observed on the site.
All other sensitive species were surveyed for in conjunction with these surveys or the previous
surveys.
One species of special concern, the Loggerhead shrike, was observed on the site during the 1999
surveys. A second special -status species, the black -tailed gnatcatcher, was observed on an
adjacent site during 1999 surveys and, for this reason, was considered to have a high potential to be
present on the Project Site. Suitable habitat for these two (2) species comprised very few acres and
the Project Site was not likely to sustain a large population of either species. Previous Assessments
determined the potential impact to these two (2) bird species was not significant.
Meridian Consultants 3.0-32 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
The 2002 MND identified that the Santa Rosa Mountains historically provided habitat for peninsular
bighorn sheep, a state- and federally listed endangered species. Focused surveys performed in 1999
found no evidence of bighorn sheep in the vicinity of the 2002 MND Project Site. Essential habitat of
the peninsular bighorn sheep in this area was defined by the USFWS to include the Santa Rosa
Mountains down to the toe -of -slope. As no development was proposed to infringe above the toe -of -
slope, no portion of the Project Site would have been developed in the essential peninsular bighorn
sheep habitat. However, the Previous Assessments identified mitigation measures to protect the
bighorn sheep. MM 131O-1 to MM BIO-10 were adopted to reduce potential impacts to bighorn sheep
to less than significant levels. MM B1O-1 to MM BIO-10 included incorporating a buffer and fencing
system into the project to prevent the Bighorn Sheep and other wildlife from entering the site,
restricting access by pets into the adjacent open space area, and minimizing indirect impacts to this
open space area from lighting, glare, noise, and harmful landscaping or chemicals. Construction and
design features, including native landscaping, non -glare glass, controlled lighting, and restricted
pesticide use are required by these mitigation measures.
Seven (7) special -status plant species were identified as known to occur in the general vicinity of the
Project Site. A special -status plant survey was completed on the Project Site in April 2000. No
individuals or populations of Coachella Valley milk -vetch were found during these focused surveys.
In addition, no other special -status plant species were observed on the site during these surveys.
One special -status vegetation community, known as mesquite hummocks, was identified within the
Specific Plan Area and impacts to these hummocks were identified as significant. The 2002 MND
identified mitigation to reduce this impact to a less than significant level. MM BIO-11 required that
prior to any construction or site preparation activities that would impact the 3.4 acres of mesquite
hummock, the agency or project developer enter into a Memorandum of Understanding (MOU) with
the California Department of Fish and Wildlife and an appropriate non-profit organization whose
purpose is to acquire and manage land for the purpose of protecting special status plants and
wildlife. The MOU was to provide the organization chosen the financial resources necessary to
purchase and manage 3.4 acres of mesquite hummock in the Willow Hole area or in another area
where the habitat is contiguous and large preserves already protect much of this habitat type.
Previous Assessments found that the requirements of MM 1131O-11 have been fulfilled, as a non-profit
organization purchased contiguous mesquite hummock habitat in another area to offset the 3.4
acres of mesquite hummock on -site, resulting in less than significant impacts to mesquite
hummocks.
The 2002 MND identified that a total of 5.29 acres of potential wetlands were present on the Project
Site. A wetland delineation was completed in August 2000 and identified four (4) potential
jurisdictional areas on the 2002 MND Project Site including a system of channels, a swale, and two
(2) excavated retention basins.
Meridian Consultants 3.0-3 3 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
The 2002 MND determined that because development of the Project Site had the potential to remove
all or some of the potential wetlands on -site and because the area was regulated by state and federal
resource agencies, this loss could be considered a significant impact without the incorporation of
mitigation measures. With implementation of MM BIO-12, requiring federal and State permits for
impacts to these features, impacts would be less than significant.
The Project Site was surrounded on two sides by mostly developed land, consisting of residences,
agricultural crops, and fallow or abandoned cropland. The Santa Rosa Mountains borderthe western
edge of the Project Site and constitute a large, natural open space area. There was one area adjacent
to and east of the Project Site that contained some native scrub habitat at the time the 2002 MND
was prepared. This area was not directly connected to any large open spaces and the native habitat
adjacent to it was patchy and disjunctive. Subsequently, that area was developed. Therefore,
Previous Assessments determined that the Project did not serve as a wildlife movement corridor
between large open spaces and potential impacts to wildlife movement were less than significant.
Subsequent to the preparation of the 2002 MND, the Project Site was mass graded. MM BIO-12 was
implemented priorto the commencement of on -site grading to mitigate potential impacts to wetland
habitat. The majority of the remainder of the site was planted with barley as a dust control reduction
measure.
The 2014 Addendum identified that the USFWS and CDFW provided the City a notice about urban -
related impacts to the peninsular bighorn sheep in February 2014 because the bighorn sheep were
using golf resort areas to forage and locate water, requiring the installation of a barrier to sheep
access and required the City to provide wildlife agencies with a report with actions to be taken in
order to implement the plan. Since that time, the exclusion fence has been constructed.
The 2014 Addendum found that any future development would be subject to compliance with
specific goals and measures set forth in the Coachella Valley Multiple Species Habitat Conservation
Plan (CVMSHCP). Although the Project Site is not directly within the CVMSHCP Conservation Areas,
the Project Site is located adjacent to the Santa Rosa and San Jacinto Mountain Conservation Areas.
Thus, the 2035 General Plan requires the project to incorporate project design features (PDFs) BIO
PDF-1, BIO PDF-6 and BIO PDF-9 by ensuring that the developer pay applicable mitigation fees and
work to guarantee the safe protection of burrowing owls and migratory birds that may reside on the
Project Site. With the incorporation of the PDFs, impacts to biological resources on the Project Site
would be reduced to less than significant levels.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to biological resources. All impacts remained less
than significant with implementation of MM BIO-1 through MM BIO-12 and with the incorporation of
BIO PDFs 1, 6 and 9.
Meridian Consultants 3.0-34 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
Previously Identified Mitigation Measures
MM BIO-1 A mountain toe -of -slope buffer/mitigation concept plan has been prepared to
protect peninsular Bighorn Sheep, and other wildlife, from entering the non -
mountainous portion of the site proposed for development. This concept plan
illustrates a continuous buffer to the toe -of -slope in areas where development could
occur adjacent to the mountain edge. The concept plan delineates the location,
acreage and native plant species envisioned for the mitigation area. This plan shall
be incorporated into the project design and shall be subject to review bythe City prior
to the issuance of grading permits. A copy of this mountain toe -of -slope
buffer/mitigation concept plan is available for review at the City of La Quinta
Community Development Department.
MM BIO-2 If Bighorn Sheep enter into the Project Site, an 8-foot fence (or the functional
equivalent) between the development and the hillside shall be constructed. The gaps
should be 11 centimeters (4.3 inches) or less. If determined necessary, the City shall
construct temporaryfencingwhile permanent fencing is constructed. The fence shall
not contain gaps in which Bighorn Sheep can be entangled. If the Department
transfer or disposes of any of the property adjacent to the hillside, the Department
shall reserve an easement sufficient for the construction of fencing if needed in the
future.
MM BIO-3 Dogs shall not be permitted to be loose within the Project area, and shall be kept
away from the hillside areas through appropriate signage and fencing, where
applicable.
MM BIO-4 Access into the hillside area from the site will be discouraged through the use of signs
or barricades, if necessary, unless the access is provided as part of a trail system that
is approved by the USFWS and CDFG.
MM BIO-5 A construction plan shall be prepared and provide, to the extent practicable,
construction activities that emit excessive noise will be avoided adjacent to the
hillside. In addition, during grading and construction activities any blasting or pile -
driving near the hillside will not occur during the period from January 1 through June
30.
MM BIO-6 The final design of the Project shall insure that road and driveways are designed to
minimize headlight shine from vehicles onto the hillside.
MM 131O-7 In all areas adjacent to the hillsides, non -glare glass shall be used in new
construction. Exterior building lights shall not shine on the hillside. Exterior lighting
shall be kept at the safest possible minimum intensity and aimed away from the
hillside.
MM 131O-8 The landscape plan shall include only plants that are non -toxic to wildlife. All exotic
plans such as tamarisk and fountain grass are prohibited. Existing trees may remain.
Meridian Consultants 3.0-3 5 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
MM 1310-9 All swimming pools located in the Project Site shall be fenced pursuant to City
regulations.
MM BIO-10 Efforts shall be made to ensure that all pesticides, fungicides, herbicides, and
fertilizers used during the construction and operation of the Project Site will not be
harmful to wildlife.
MM BIO-11 Priorto anyconstruction or site preparation activities thatwould impactthe 3.4 acres
of mesquite hummock, the agency or project developer shall enter into a
Memorandum of Understanding (MOU) with CDFG and an appropriate non-profit
organization whose purpose is to acquire and manage land for the purpose of
protecting special status plants and wildlife. This MOU shall provide the organization
chosen the financial resources necessary to purchase and manage 3.4 acres of
mesquite hummock in the Willow Hole area or in another area where the habitat is
contiguous and large preserves already protect much of this habitat type.
MM BIO-12 Prior to the commencement of on -site grading, a 404 permit shall be obtained, if
legally required, for alteration of areas under the Army Core of Engineers (ACOE)
jurisdiction. In addition, if development activities are to take place within streambeds
or drainages under the jurisdiction of the CDFG, a streambed alteration agreement
shall first be obtained, if legally required.
Previously Identified Project Design Features
Previously identified project design features from the 2035 General Plan include:
BIO PDF-1 The City shall require payment of Coachella Valley Multiple Species Habitat
Conservation Plan mitigation fees prior to issuance of occupancy permits for
development projects required to pay such fees.
1310 PDF-6 Prior to the issuance of any ground disturbing permit for qualifying projects in a
Conservation Area, the City shall require a protocol complaint survey for Burrowing
Owl, in compliance with the MSHCP Section 4.4.
BIO PDF-9 In compliance with the requirements of the Migratory Bird Treaty Act (MBTA), the City
shall continue to require that for development projects proposing removal of
vegetation between March and August, a qualified biologist shall be retained to
determine whether any bird nests or young occur on the site, and if they occur, to
provide mitigation measures compliant with the MBTA.
3.7.3 Existing Conditions
The Project Site has been mass graded and contains the Arnold Palmer Golf Course, Ahmanson
House, and partially developed hotel and residential buildings from previous approvals. The Arnold
Palmer Golf Course is located on the most western portion of the site along the edge of the Santa
Rosa Mountains, a known habitat for the peninsular bighorn sheep. There is no riparian habitat
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3.0—Impact Analysis
present on the Project Site. A Bighorn sheep exclusion fence along the toe of slope has been
constructed within the Project site.
The City is a signatory and participant for the CVMSHCP. The Project Site is located adjacent to the
Santa Rosa and San Jacinto Mountains Conservation Area. The City collects a CVMSHCP fee for
applicable projects and collects the fee at permit issuance.
a.7.4 Analysis of Proposed ProjcI-L
As discussed above, the Previous Assessments incorporated MM BIO-11 and MM BIO-12 before
mass grading the entire Project Site, resulting in less than significant impacts to biological resources
within the Project Site. Those mitigation measures have now been satisfied and are no longer
applicable to project implementation. At the time the 2014 Addendum was prepared, a notice was
provided that bighorn sheep were seen grazing on the Project Site, prompting CDFW to require a
fence built within a year. The fence has been built and completed. MM BIO-1 and MM BIO-10 are still
applicable to the 2025 Project to ensure less than significant impacts to the bighorn sheep.
As the Project Site is located adjacent to the Santa Rosa and San Jacinto Mountain Conservation
Areas, the General Plan requires the 2025 Projectto incorporate BIO PDF-1, BIO PDF-6 and BIO PDF-
9 by ensuring that the developer pays all applicable mitigation fees not previously paid and ensuring
the safe protection of burrowing owls and migratory birds that may reside on the Project Site through
compliance with the requirements of the MBTA. With the incorporation of the PDFs, impacts to
biological resources on the Project Site would be reduced to less than significant. Biological resource
impacts associated with the 2025 Project would be similar to impacts identified in the Previous
Assessments and would be less than significant with the implementation of mitigation measures and
project design features. No new information, changed circumstances, or more severe impacts would
occur with the implementation of the 2025 Project.
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3.8 ENERGY AND MINERAL RESOURCES
3.8.1 1 nrebiiuids
a. Result in the loss of availability of a known mineral resource that would be of value to the
region and the residents of the state?
b. Result in the loss of availability of a locally -important mineral resource recovery site
delineated on a local general plan, specific plan or other land use plan?
3.8.2 1-ummary of Findings in Previous Assessments
As identified in the Previous Assessments, the uses proposed were determined to be consistent with
the City's General Plan. As all development analyzed in the Previous Assessments would conform to
standard energy efficient building codes, no significant impacts to energy consumption would occur.
Non-renewable resources, such as natural gas, petroleum products, petrochemical construction
materials, steel, copper and other metals, sand and gravel are considered to be commodities which
are available in a finite supply. If not consumed bythe Project, these non-renewable resources would
likely be committed to other projects in the region intended to meet the anticipated growth outlined
in the General Plan. Furthermore, the investment of resources in the development of the Specific
Plan would be typical of the level of investment normally required for a project of similar scale.
The Previous Assessments identified that the Project Site is located within a MRZ (Mineral Resource
Zone)-1, which is defined as areas where adequate information indicates that no significant mineral
deposits are present, orwhere it is judged that little likelihood exists for their presence.23 Most of the
developable areas in the City are located in areas with a minimal presence of significant mineral
deposits, and no impacts to mineral resources were identified in the Previous Assessments.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to energy or mineral resources. All impacts remained
less than significant.
Existing Conditions
The City's Municipal Code requires that all utilities in new residential districts and subdivisions be
undergrounded.24 All new construction of residential and non-residential buildings in the City is
required to abide by the Energy Efficiency Standards implemented through California Building Code
(CBC) Title 24 in place at the time construction occurs.
23 City of La Quinta, 2035 La Quinta General Plan. Energy and Mineral Resources, Mineral Resource Zone Map, Exhibit
III-1 (2013).
24 City of La Quinta. 2035 La Quinta General Plan EIR.
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The Project Site is located within the MRZ (Mineral Resource Zone)-1, which is defined as areas where
adequate information indicates that no significant mineral deposits are present, or where it is judged
that little likelihood exists for their presence.25
Analysis or rroposed Project
The 2025 Project would use less energy than analyzed in the Previous Assessments due to the
reduction in intensity of land uses compared to the Previous Assessments. The 2025 Project would
comply with the Energy Efficiency Standards set forth in the CBC, including the installation of solar
panels on residential units, currently in effect. Energy efficiency standards for development have
increased since the Previous Assessments and the 2025 Project would incorporate the latest CBC
standards.
The Project Site is designated MRZ-1; therefore, implementation of the 2025 Project would not result
in the loss of availability of a locally -important mineral resource considered valuable in the region
and state.
Energy and mineral resource impacts associated with the 2025 Project would be similar to impacts
identified in the Previous Assessments and would be less than significant. No new information,
changed circumstances, or more severe impacts would occur with the implementation of the 2025
Project.
25 City of La Quinta. 2035 La Quinta General Plan. Energy and Mineral Resources. Mineral Resource Zone Map. "Exhibit
III-1."2013.
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3.9 HAZARDS AND HAZARDOUS MATERIALS
3.9.1 1 nresiiuiub
a. Create a significant hazard to the public or the environment through the routine transport,
use, or disposal of hazardous materials?
b. Create a significant hazard to the public or the environment through reasonably foreseeable
upset and accident conditions involving the release of hazardous materials into the
environment?
c. Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances,
or waste within one -quarter mile of an existing or proposed school?
d. Be located on a site which is included on a list of hazardous materials sites compiled pursuant
to Government Code, Section 65962.5 and, as a result, would it create a significant hazard
to the public or the environment?
e. For a project located within an airport land use plan or, where such a plan has not been
adopted, within 2 miles of a public airport or public use airport, would the project result in a
safety hazard for people residing or working in the project site?
f. For a project within the vicinity of a private airstrip, would the project result in a safety
hazard for people residing or working in the project site?
g. Impair implementation of or physically interfere with an adopted emergency response plan
or emergency evacuation plan?
h. Expose people or structures to a significant risk of loss, injury, or death involving wildland
fires, including where wildlands are adjacent to urbanized areas or where residences are
intermixed with wildlands?
�.� Summary of Findings in Previous Assessments
The Project Site previously contained an abandoned single-family residence and related agricultural
buildings. As part of the 2002 MND, a Phase I Environmental Site Assessment (ESA) was prepared
and determined that asbestos was present in some of the building materials of the abandoned
single-family residence. The abandoned single-family residence and related agricultural buildings
were then demolished, and the Ahmanson House was renovated with the implementation of MM
HAZA, which ensured the safe removal of asbestos from the Project Site according to applicable
regulations.
The Phase I ESA also indicated a potential hazard related to the presence of residual pesticides and
herbicides related to previous agricultural uses of the site. Recommendations included mixing upper
surface soils to reduce the concentration of residual pesticides and herbicides. Onsite soils were
mixed to reduce these concentrations.
Previous Assessments found that the Project Site was located approximately one (1) mile from two
underground storage tanks (UST), one at the Oak Tree West property and the other at the Landmark
Lease site. The Oak Tree West propertywas included on the leaking underground storage tank (LUST)
list and the Landmark Lease site was included on the historical UST list. The Oak Tree West site was
remediated and is listed as a closed case. The Landmark Lease site had no reported violations, as
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the underground tanks were removed and closed by the appropriate regulatory agency and no further
study or investigation was warranted.
The development of the Project Site with the planned golf course and resort uses was not determined
to pose a substantial risk of the release of hazardous materials. Further, Previous Assessments
identified that the planned uses would not pose any health hazard or potential health hazard to
visitors and nearby residences.
Previous Assessments identified that the Project Site is not within the vicinity of a public use airport
or a private airstrip. The nearest public use airport is the Bermuda Dunes Airport, located
approximately seven (7) miles north of the Project Site. Jacqueline Cochran Regional Airport, a
County -owned public use airport, is located approximately 10 miles east from the Project Site.
The City contracts with Riverside County Fire Department (RCFD) for emergency services, and the
City's Emergency Services Division is responsible for preparing the community for disasters and
emergencies. The 2035 General Plan will facilitate new development and consequently increase
population within the City. Any increase in population has the potential to impact emergency
response and evacuation plans. Previous Assessments concluded that development of the Project
Site would not induce population growth.
Previous Assessments found that development of the Project Site would not interfere with any
adopted emergency response or evacuation plan since development of the Project Site would not
obstruct the existing or planned circulation network. The Project Site is within a lowwildfire risk zone
and as such, wildland fire impacts would be less than significant.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to hazardous and hazardous materials. All impacts
remained less than significant.
Previously Identified Mitigation Measures
MM HAZ-1 Prior to the demolition or renovation of the on -site family residence, asbestos -
containing materials (ACM) shall be removed in accordance with current regulatory
guidelines.
3.9.3 Existing Conditions
The City is within an urbanized area in the Coachella Valley, which has the potential for exposure to
hazards and hazardous materials.26 The County has developed a Hazardous Waste Management
26 City of La Quinta. 2035 La Quinta General Plan EIR.
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Plan (HWMP), which addresses the proper disposal, processing, handling, storage, and treatment of
hazardous materials.27
The City's Emergency Services Division is responsible for responses to disasters and emergencies.
The City has prepared the Emergency Operations Plan to plan and prepare for emergencies. The City
established Code Red, which is an ultra -high-speed telephone communication service that provides
emergency notifications to residents during emergencies. The City is also involved in the Community
Emergency Response Team (CERT) program, which educates volunteers in the community about
disaster preparedness and trains them in basic disaster response skills. The CERT group is organized
to support the City during emergencies or disasters.
The California Department of Transportation (Caltrans), California Highway Patrol (CHP), and the US
Department of Transportation regulate hazardous materials, and the cleanup and containment of
accidents. Emergency evacuation and response plans, such as Code Red, are already developed in
the City to provide automated notifications to residents during an emergency, including hazardous
waste spills.28
The City is located at the base of the Santa Rosa Mountains; however, these areas are considered
low wildfire zones as are the flat urbanized areas of the City. The Project Site is not on land classified
as a Fire Hazard SeverityZone.29 The Project Site is not located within a site that is included on a list
of hazardous materials sites compiled pursuant to Government Code, Section 65962.5 (Cortese
List).
3.9.4 Analysis of Proposed Project
As discussed above, the Project Site no longer has hazards associated with it after the
implementation of MM HAZ-1. The Project Site has been mass graded and contains the Arnold Palmer
Golf Course, Ahmanson House, and partially developed hotel and residential buildings from previous
approvals.
The uses included in the 2025 Project are similar to the surrounding land uses in proximity to the
Project Site, which consists of other golf and residential communities. The 2025 Project could involve
the temporary use of hazardous substances in the form of paint, adhesives, surface coatings and
other finishing materials and cleaning agents, fuels, and oils typically used in construction. The
transport, use and disposal of construction related hazardous materials would occur in
conformance with all applicable local, State, and federal regulations governing such entities. Similar
to the planned uses analyzed in Previous Assessments, the 2025 Project's proposed uses would not
pose a substantial risk of release of hazardous materials, and planned uses would not pose any
27 City of La Quinta. 2035 La Quinta General Plan EIR.
28 City of La Quinta. 2035 La Quinta General Plan EIR.
29 Ca[Fire. "Fire Hazard Severity Zones." Accessed July
2025. https://experience.arcgis.com/experience/03beab8511814e79a0e4eabf0d3e7247/.
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health hazard or potential health hazard to visitors or surrounding uses. The Project Site is not
located within a site that is included on the Cortese List.30,31
The Project Site is not within one -quarter mile of an existing or proposed school. The nearest school
is Harry S Truman Elementary School, located at 78870 Avenue 50, approximately 0.9 miles north of
the Project Site.
The Project Site is not within the vicinity of a public use airport or a private airstrip. The nearest public
use airport is the Bermuda Dunes Airport, approximately seven (7) miles from the Project Site.
The City contracts with RCFD for emergency services, and the City's Emergency Services Division is
responsible for preparing for disasters and emergencies. As described in detail in Section 3.2
Population and Housing, the 2025 Project would generate a population increase of approximately
1,690 people, which does not represent a substantial increase, as this increase would represent
approximately 9.9 percent of the growth projected from 2025 to 2050. The 2025 Project's proposed
residential uses would not induce substantial population growth within the City, and the 2025 Project
would reduce the overall residential and hotel uses when compared to the Previous Assessments.
The 2025 Project would not obstruct or interfere with the existing circulation network surrounding the
Project Site because the 2025 Project would not alter the existing street system. Additionally, the
2025 Project would have a lower development intensity compared to the land uses analyzed in the
Previous Assessments, which would reduce circulation impacts compared to the Previous
Assessments. Therefore, the 2025 Project would not interfere with any adopted emergency response
or evacuation plans.
The 2025 Project's proposed uses would not create a fire hazard that has the potential to exacerbate
the current environmental condition relative to wildfires. The 2025 Project would be developed in
accordance with requirements pertaining to fire safety. The 2025 Project would not expose people or
structures, directly or indirectly, to a significant risk of loss, injury, or death as a result of exposure to
wildland fires.
Hazards and hazardous materials associated with the 2025 Project would be similar to those
identified in the Previous Assessments and would be less than significant. No new significant
impacts or increase in the severity of any previously identified significant impacts would result from
changes to the 2025 Project, new information, or changes to the circumstances under which the
2025 Project will be undertaken.
30 State Water Resources Control Board. "GeoTracker." Accessed July 2025. https://geotracker.waterboards.ca.gov/.
31 Department of Toxic Substances Control. "EnviroStor." Accessed July 2025.
https://www.envirostor.dtsc.ca.gov/pubLic/search?basic=True.
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3.10 NOISE
3.10.1 i nresriolds
a. Exposure of persons to or generation of noise levels in excess of standards established in the
local general plan or noise ordinance, or applicable standards of other agencies?
b. Exposure of persons to or generation of excessive groundborne vibration or groundborne
noise levels?
c. A substantial permanent increase in ambient noise levels in the project vicinity above levels
existing without the project?
d. A substantial temporary or periodic increase in ambient noise levels in the project vicinity
above levels existing without the project?
e. For a project located within an airport land use plan or, where such a plan has not been
adopted, within 2 miles of a public airport or public use airport, would the project expose
people residing or working in the project site to excessive noise levels?
f. For a project within the vicinity of a private airstrip, would the project expose people residing
or working in the project site to excessive noise levels?
3.10.2 Summary of i-inaings in Previous Assessments
The Previous Assessments determined that construction noise would occur throughout
development with most of the noise intensive activities occurring at the beginning of development
when the site was cleared and graded. Noise intensive activities typically involve the use of heavy
equipment, including scrapers, loaders, tractors, and concrete mixers. Trucks would be used during
construction to deliver equipment and building materials, as well as haul away waste materials.
Additionally, the Previous Assessments noted that smaller equipment, including jack hammers,
saws, pneumatic tools, and hammers, would also be used during construction. This equipment
would generate steady state and episodic noise that could be heard on- and off -site, potentially
causing construction noise impacts to the surrounding area. The site is surrounded by a residential
subdivision and golf course to the north, a residential subdivision and golf course to the east, PGA
west golf course and residential community to the south, and the mountains to the west. The noise
generated during the construction phase would typically affect the occupants of nearby residences;
however, the majority of development would take place at the interior of the site with activities for a
planned golf course along the exterior of the site. The Previous Assessments noted that construction
activity would be short-term and would not result in significant impacts with the incorporation of MM
N-1 through MM N-3, which would restrict construction hours, add mufflers to noise equipment as
applicable, and keep earth moving and hauling routes away from existing residences to the extent
possible.
The 2035 General Plan projected noise levels on streets adjacent to the Project Site for 2035. The 65
A -weighted decibel Community Noise Equivalent Level (dBA CNEL) noise contour along Jefferson
Street between Avenue 52 and Avenue 53 would be 239 feet from the centerline. The CNEL noise
level 100 feet from the centerline of Jefferson Street between Avenue 52 and Avenue 54 would be
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70.7 dBA. The 65 dBA CNEL noise contour along Avenue 52 west of Jefferson Street would be 220 feet
from the centerline. The CNEL noise level 100 feet from the centerline of Avenue 52 west of Jefferson
Street would be 70.1 dBA. The Previous Assessments found that traffic noise impacts would not
significantly impact the project. The proposed golf courses planned to be developed on the edges of
the Project Site would serve as a buffer from adjacent noise sources. Additionally, the golf course
would also attenuate noise levels from the uses proposed in the interior of the Project Site to uses
off -site. However, operational noise from the project could potentially impact nearby sensitive
receivers such as residences. With the incorporation of MM N-4 and MM N-5, which would
strategically place and silence mechanical and outdoor equipment, operational noise impacts
related to the project would be less than significant.
The Previous Assessments identified the nearest public use airport as Bermuda Dunes Airport,
located approximately seven miles from the Project Site. The Project Site is not located within two
miles of a public airport or public use airport and is not located within the vicinity of a private airstrip.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to noise. All impacts remained less than significant
with the incorporation of mitigation measures identified in the Previous Assessments.
Previously Identified Mitigation Measures
MM N-1 Between May 1 and September 30, all construction activities on the Project Site shall
only occur between the hours of 6:00 AM and 7:00 PM Monday through Friday, and
from 8:00 AM to 5:00 PM on Saturday, and shall be prohibited on Sundays and public
holidays. Between October 1 and April 30, all construction activity on the Project Site
shall only occur between the hours of 7:00 AM and 5:30 PM Monday through Friday,
and from 8:00 AM to 5:00 PM on Saturday, and shall be prohibited on Sundays and
public holidays. All operational activities of the SRR SP shall also be subject to the
Noise Ordinance of the City as well.
MM N-2 All construction equipment operating in the planning area shall be fitted with well -
maintained functional mufflers to limit noise emissions.
MM N-3 To the greatest extent feasible, earth moving and hauling routes shall be located
away from existing residences.
MM N-4 The design, selection, and placement of the mechanical equipment for various
buildings shall include consideration of the potential noise impact they may have on
uses within the development site.
MM N-5 Silencers and/or barriers shall be provided where necessary at outdoor equipment,
such as cooling towers, air cooled condensers, and refrigeration
compressors/condenser units, and at the air intake and discharge openings for
buildingventilation systems.
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3.10.3 Existing Conditions
The Project Site includes an existing golf course, the Ahmanson House, which is currently used as a
clubhouse for the Arnold Palmer Classic Golf Course, and a series of partially constructed buildings
associated with the previous approvals located in the western portion of the Project Site. There are
no sensitive uses located on -site.
The primary source of noise in the City and sphere of influence is traffic. The nearest sensitive
receptors to the Project Site are the residential uses to the east along Deacon Drive East, to the north
along Avenue 52, to the east along Jefferson Street, and to the south along Avenue 54.
Noise standards in the City allow sensitive land uses to experience a maximum noise level of 65 dbA
CNEL in outdoor living areas (patios, balconies, and rear yards).
3.10.4 Analysis of Proposed Project
Construction
Noise intensive construction activities would be similar to those previously analyzed. These
construction activities typically involve the use of heavy equipment, including scrapers, tractors,
loaders, and concrete mixers. Construction of buildings within the Project would involve less heavy
equipment, because grading has occurred, but would still generate noise from the use of smaller
equipment, including jackhammers, pneumatic tools, saws, and hammers. This equipment would
generate both steady state and episodic noise that would be heard both on- and off -site, consistent
with the analysis in the Previous Assessments.
Vibration levels due to on -site construction activities would not exceed the building damage
significance threshold for vibratory rollers, large bulldozers, caisson drilling, loaded trucks,
jackhammers, and small bulldozers at a reference distance of 50 feet or at the nearest sensitive
receptors. The nearest sensitive receptors are located over 125 feet away to the west of the Project
across Deacon Drive East. Construction would not generate excessive groundborne vibration.
The 2025 Project would comply with the standards set forth by the La Quinta Municipal Code which
are identified in MM N-1. Furthermore, the surrounding uses have masonry walls which act as noise
barriers which would reduce temporary noise during construction. Construction -related noise
impacts would be similar to the impacts identified in the Previous Assessments and with the
incorporation of MM N-1 through MM N-3 would be less than significant. Impacts would be less than
significant and no new information, changed circumstances, or more severe impacts were identified for
the 2025 Project.
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Operation
Primary sources of noise throughout the City are caused primarily by motor vehicle traffic on City
streets, particularly major roadways.32 Other noise generators in the City include those associated
with commercial uses, including mechanical equipment, such as fans, motors, and compressors.
As discussed in Section 3.6: Transportation/Circulation, the proposed Project would reduce the
number of daily vehicle trips by approximately 2,800 trips when compared to the 2014 Addendum.
The 2025 Project would have a reduced development intensity compared to the land uses analyzed
in the Previous Assessment. However, the vehicles entering and exiting the site would follow similar
trip distribution patterns as those identified in the Previous Assessments. Noise levels from vehicles
would remain similar, but slightly reduced from noise levels identified in the Previous Assessments.
On -site sensitive uses include the hotel and resort residential units. The distance from the centerline
between the golf courses and commercial uses surrounding the edges of the site and the sensitive
on -site uses would reduce noise levels below 65 dBA CNEL.
As discussed previously, the City's Municipal Code establishes base ambient noise level limits for
noise sensitive and other non-residential uses based on time of day. The 2025 Project would adhere
to the standards set forth by the Municipal Code and incorporate MM N-4 or MM N-5 to reduce
operational noise impacts to less than significant levels.
The Project Site is not located within two miles of a public airport or public use airport and would not
expose people residing or working in the Project Site to excessive noise levels.
Noise impacts would be similar to impacts identified in the Previous Assessments and would be less
than significant with the incorporation of MM N-1 through MM N-5. No new information, changed
circumstances, or more severe impacts would occur with the implementation of the proposed
Project.
32 City of La Quinta. 2035 La Quinta General Plan EIR.
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3.11 PUBLIC SERVICES
3.11.1 Thresholds
a. Would the project result in substantial adverse physical impacts associated with the provision
of new or physically altered governmental facilities, need for new or physically altered
governmental facilities, the construction of which could cause significant environmental
impacts, in order to maintain acceptable service ratios, response times or other performance
objectives for any of the public services:
i) Fire Protection?
ii) Police Protection?
iii) Schools?
iv) Libraries?
3.1 1.2 Summary of Findings in Previous Assessments
Fire Protection
Previous Assessments analyzed existing fire service and the potential demand for fire service with
the development of the project. Development of the project could potentially cause significant fire
service demands. Previous Assessments determined that with implementation of MM PUB-1, which
requires projects to be reviewed by the Riverside County Fire Department (RCFD) to ensure adequate
fire services would be provided at the time of site development, impacts would be reduced to a less
than significant level. The project analyzed in Previous Assessments would pay applicable fire
protection Development Impact Fees to ensure there is adequate funding of fire protection services.
Police Protection
Previous Assessments analyzed existing police protection services and the potential demand for
police protection services with development of the project. Individual development projects are
reviewed by the Riverside County Sheriff's Department (RCSD) to ensure adequate police services
would be provided at the time of site development. Previous Assessments found that with the
implementation of MM PUB-2, which requires the RCSD review new development proposals in order
to evaluate the RCSD's ability to provide adequate police protection, impacts would be reduced to a
less than significant level.
Schools
There are two (2) public school districts that serve the City, Desert Sands Unified School District
(DSUSD), and the Coachella Valley Unified School District (CVUSD). The Project Site is within the
DSUSD service area. Previous Assessments identified that the Proposed Agreements would generate
seasonal population growth and would incrementally introduce a small number of seasonal
residents similar to those identified in the growth projections from the City's 2035 General Plan. The
proposed development analyzed in Previous Assessments would require payment of applicable
school fees. No significant impacts would occur.
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Libraries
The La Quinta Library, a city -owned library facility, would serve the Project Site. Previous
Assessments identified that the Proposed Agreements would not introduce any permanent residents
or result in permanent population growth. There would be a minimal demand for public library
services. Any applicable developer fees would have been paid prior to the issuance of building
permits.
No new information, changed circumstances, or more severe impacts were identified in Previous
Assessments.
Previously Identified Mitigation Measures
MM PUB-1 The Riverside County Fire Department, in its review of new development proposals,
shall evaluate project plans and the Department's ability to provide proper fire
protection. This review shall include, but shall not be limited to, internal circulation,
project directories, street names, and numbering systems. New developments shall
comply with all City and Fire Department standards.
MM PUB-2 The Riverside County Sheriff's Department shall review new development proposals
in order to evaluate project plans and the Department's ability to provide adequate
police protection. This review should include, but not be limited to internal
circulation, project directories, street names, and numbering systems. New
developments shall comply with all established City and Sheriff standards.
3.11.3 c_xistiriy Conditiori5
Fire Protection
Fire protection for the City is provided through a contract with the RCFD. The two closest City -owned
fire stations located within the City are staffed with both full-time paid and volunteer firefighters. Fire
Station Number 32 is located at 78-111 Avenue 52, approximately 0.7 miles west of the Project Site
and is equipped with both primary and reserve fire engines, along with volunteer squad and rescue
vehicles. Fire Station Number 70 is located at 54001 Madison Street, approximately 0.9 miles
southeast of the Project Site and is equipped with a primary engine, a brush fire engine, and a
volunteer squad vehicle. Currently, average RCFD response times are within the acceptable County
standard and align with the National Fire Protection Association (NFPA) guidelines, between 5 and 7
m i n utes.33
33 Cal Fire Riverside Unit Riverside County Fire Department. "RE: East Lake Plan Amendment #11 Project Requestfor
Information." Accessed July 2025. https://www.lake-eLsinore.org/DocumentCenter/View/l926/Appendix-J---
Correspondence-with-Police-and-Fire-PDF#::text=Type%201 %20Engine-
,(structu ral%20fi refighting%20a ppa ratus).,stations%20to%20the%20project%20site?.
Meridian Consultants 3.0-49 SilverRock Resort Project Addendum
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3.0—Impact Analysis
Police Protection
The City contracts with the RCSD for police staffing. As detailed in the 2035 General Plan, the City
contract provided for 51 sworn officers and 5 community service officers. The RCSD operates an
office within City Hall. A regional station is located in Thermal, which acts as the department's central
facility. The La Quinta Police Department is located approximately 0.5 miles northwest of the Project
Site.
The RCSD maintains a staffing level of one staff per 1,000 population; however, the City does not
maintain a staffing ratio and staffing is based on the safety needs of the community and the available
resources to provide for safety needs. As of January 1, 2025, DOF estimates that the City has a
population of approximately 38,796 residents, which would place the level of police staffing at 1.31
staff per 1,000 population.34,35
Schools
The Project Site is within the DSUSD service area.
Libraries
The La Quinta Library, a city -owned library facility, is located at 78-275 Calle Tampico and operated
by the County. The La Quinta Library is approximately 0.6 miles northwest of the Project Site.
3.1 1.4 Analysis of Proposed Project
Fire Protection
The 2025 Project includes the development of a golf course, hotel, residences, and commercial land
uses that increase the fire protection services compared to existing conditions. However,
development of the 2025 Project would have a lower development intensity compared to the land
uses analyzed in the Previous Assessments. The 2025 Project would implement MM PUB-1, which
would ensure that the 2025 Project adheres to all RCFD's regulations for proper fire protection.
Additionally, the 2025 Project would pay the fire protection Development Impact Fee as applicable
at the time building permits are issued. Therefore, fire protection impacts associated with the
development of the 2025 Project would be similar to those previously analyzed, and less than
significant with mitigation.
Police Protection
As was the case in Previous Assessments, individual development projects are reviewed bythe RCSD
to ensure that adequate police services would be provided to the 2025 Project at the time of
34 Staffing and service ratios for the RCSD were sourced from the City of La Quinta's 2035 General Plan, which provides
the most recent available information.
35 (51 sworn officers / 38,796 residents) x (X officers / 1,000 residents) = 1.31 officers per 1,000 residents.
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3.0—Impact Analysis
development. As described in Previous Assessments, the implementation of MM PUB-2 would
ensure impacts to police protection would be less than significant. The 2025 Project would pay
applicable development fees that fund the expansion of essential public facilities such as police
protection. Therefore, police protection impacts associated with the development of the 2025
Project would be less than significant with mitigation.
Schools
As mentioned above, the DSUSD district provides school services to the Project Site. The 2025
Project includes approximately 599 hotel/residential units. As described in Section 3.2: Population
and Housing, the 2025 Project's proposed 599 units would generate a population increase of 1,690
people. However, the addition of 11690 people would not represent a substantial increase, as the
2025 Project's increase in population would represent approximately 9.9 percent of the growth
between 2025 to 2050.
Table 3.11-1: School District Generation Rates and Student Generation shows the projected
number of students that would be generated by the 2025 Project. These projections are based on
elementary, middle and high school student generation rates used by DSUSD. Student generation
rates were derived from the DSUSD's Fee Justification Study.36 As indicated in the table, the 2025
Project would generate an estimated total of 216 new students, consisting of 92 new elementary
school students, 52 middle school students, and 72 high school students. It is possible that
residents and students would relocate from elsewhere in the DSUSD service area; however, as a
conservative measure, this analysis assumes all new students within this school district.
36 Desert Sands Unified School District (DSUSD). "Fee Justification Study for New Residential and
Commercial/Industrial Development." 2020. Accessed July 2025. https://cdnsm5-
ssl 8.sharpschool.com/UserfiLes/D BFiLes/server_24405182/202005/30304416. pdf.
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3.0—Impact Analysis
599 K-5 0.1543 92
Desert Sands Unified 599 6-8 0.0867 52
School District
599 9-12 0.1203 72
Source: DSUSD. "Fee Justification Study for New Residential and Commercial/Industrial Development." 2020. Accessed July
2025. https://cdnsm5-ssl8.sharpschool.com/Userfiles/DBFiles/server_ 24405182/202005/30304416.pdf.
Table 3.11-2: Project School Enrollment and Capacities compares the projected enrollment at
schools serving the Project area to the current capacity of those schools.37 Based on the current
enrollment and projected number of students generated by the 2025 Project, implementation of the
2025 Project would put DSUSD at approximately 100.6 percent capacity with a total of 28,209
students.
Desert Sands Unified
School District 28,031 27,993 99.86% 216 28,209 100.6%
Source: DSUSD. "Fee Justification Study for New Residential and Commercial/Industrial Development." 2020. Accessed July
2025. https://cdnsm5-ss18.sharpschool.com/Userfiles/DBFiles/server_ 24405182/202005/30304416.pdf.
As described in the Previous Assessments, the 2025 Project would comply with the State -mandated
school impact fees under SB 50, which are deemed to be full and complete mitigation of the impacts
of new development on schools. School impact fees would ensure that impacts of the 2025 Project
would be less than significant.
Libraries
The Project Site would be served by the La Quinta Public Library. According to the American Library
Association (ALA), the minimum standard for public library space was 1.0 square feet per resident in
the library's service area.38 As of January 1, 2025, DOF estimates that the City has a population of
approximately 38,796 residents.39 The La Quinta Library has approximately 20,000 square feet of
37 The Fee Justification Study provides 2019 to 2020 data on student capacity and enrollment.
38 Brawner, Lee B., Donald L., Jr." Determining Your Public Library's Future Size: A Needs Assessment and Planning
Model." Institute of Education Sciences. 1996. Accessed July 2025. https://eric.ed.gov/?id=ED392455&utm_.
39 Department of Finance. "Total State Population." Accessed July 2025. https://dof.ca.gov/wp-
content/uploads/sites/352/Forecasting/Demographics/Documents/E-1 _2025_Press_Release. pdf.
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3.0—Impact Analysis
library space. Accordingly, the City is below the ALA standard of 1.0 square feet per resident, as the
City has approximately 0.52 square feet per resident.
As discussed above, the 2025 Project would generate a population increase of 1,690 people. Using
the ALA standard of 1.0 square feet per resident and considering the 2025 Project's estimated
addition of approximately 1,690 people, the ratio of library square feet per resident would be
approximately 0.49 feet per resident. The 2025 Project would pay all applicable development fees
that fund the expansion of libraries. Therefore, impacts would be less than significant.
Public services impacts associated with the 2025 Project would be similar to those identified in the
Previous Assessments and would be less than significant through the payment of applicable fees
and with the incorporation of MM PUB-1 through MM PUB-2. No new significant impacts or increase
in the severity of any previously identified significant impacts would result from changes to the 2025
Project, new information, or changes to the circumstances under which the 2025 Project will be
undertaken.
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3.12 UTILITIES AND SERVICE SYSTEMS
3.12.1 Thresr,u,u5
a. Exceed wastewater treatment requirements of the applicable Regional Water Quality Control
Board?
b. Require or result in the construction of new water or wastewater treatment facilities or
expansion of existing facilities, the construction of which could cause significant
environmental effects?
c. Require or result in the construction of new storm water drainage facilities or expansion of
existing facilities, the construction of which could cause significant environmental effects?
d. Have sufficient water supplies available to serve the project from existing entitlements and
resources, or are new or expanded entitlements needed?
e. Result in a determination by the wastewater treatment provider, which serves or may serve
the project that it has adequate capacity to serve the project's projected demand in addition
to the provider's existing commitments?
f. Be served by a landfill with sufficient permitted capacity to accommodate the project's solid
waste disposal needs?
g. Comply with federal, State, and local statutes and regulations related to solid waste?
3.1 z.z Summary of Findings in Previous Assessments
Energy
Electric services are provided to the City from Imperial Irrigation District (IID) and natural gas services
are provided to the City from Southern California Gas Company (SoCal Gas). As identified in the
City's General Plan, the IID and SoCal Gas would provide electrical and natural gas services to the
Project Site. Additionally, incorporation of MM UTIL-1 and MM UTIL-2 would improve energy
efficiency and further minimize the project's energy demand, resulting in less than significant
impacts.
Wastewater Services
CVWD provides wastewater treatment to the City. In the 2002 MND, there were septic tanks within
the Project Site. Development of the project could lead to a significant impact on septic tanks. MM
UTIL-7 was implemented to remove all septic tanks on the site in accordance with Federal, State and
local regulations.
In 2005, the City entered into a Domestic Water and Sanitation System Installation and Irrigation
Service Agreement (Water Agreement) with the CVWD for the Specific Plan Area. This Water
Agreement required that several local improvements be made to the water delivery system to provide
service to the Specific Plan Area. Sewer improvements proposed as part of the project included
construction of a 12 inch sewer main in SilverRock Wayfrom the existing Ahmanson House to Avenue
54, a 27 inch sewer main to run west in SilverRock Way to Jefferson Street in the Jefferson Street
Access Road, and a 27 inch sewer main to connect to the 12 inch sewer main in SilverRock Way to
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an existing pump station MM UTIL-3 and MM UTIL-6 were implemented to connect the site to the
City's sewer system according to the Water Agreement and pay the developer fees associated with
the development of sewer infrastructure.
Sewage generated from the project would be conveyed for treatment to the Mid -Valley Water
Reclamation Plant. There were no plans for expansion at the Mid -Valley Water Reclamation Plant, as
its capacity was approximately 10 million gallons per day (mgd) and an average of approximately 5
mgd per day was being processed. Therefore, impacts to wastewater service were determined to be
less than significant with mitigation incorporated.
Storm Drain Infrastructure
CVWD is the regional authority responsible for the management of drainage within the Coachella
Valley, while the City is responsible for storm water management within the City boundaries. The City
has prepared a storm water management plan used to direct future management plans and policies.
The Previous Assessments determined that the existing and proposed golf courses within the
Specific Plan Area had sufficient capacity to accommodate drainage without any off -site drainage
impacts. With implementation of MM UTIL-3 and adherence to the Water Agreement impacts were
determined to be less than significant
Water Services
Domestic water is provided to the City by CVWD. The primary source of water is groundwater, which
is extracted from the Whitewater River Subbasin by means of a deep well system in the region and
imported water from the Colorado River vis the Coachella Canal.
The Water Agreement required improvements to be made as part of the Specific Plan including an 18
inch water main in SilverRock Way from the Ahmanson House to Avenue 54, an 18 inch water main
to run west from SilverRock Way to Jefferson Street in the Jefferson Street Access Road, two water
well sites, and a pressure reducing/boosting station. All utility infrastructure improvement designs
would comply with established CVWD standards and would be subject to CVWD review and
approval. With the implementation of MM UTIL-3 and MM UTIL-6, impacts would be less than
significant with regards to water service.
A WSA and Water Supply Verification (WSV) was prepared and approved for the project by CVWD that
determined CVWD would be able to serve and meet the project water demand of approximately
2,361 acre-feet per year (afy), resulting in less than significant impacts.
Solid Waste
Previous Assessments identified that all solid waste within the Specific Plan Area would be taken to
the Edom Hill Transfer Station and transported to eitherthe Lamb Canyon Landfill, Badlands Landfill,
or the El Sobrante Landfill. Previous Assessments stated the annual disposal rate at the Lamb
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Canyon facility is 0.46 million tons per year. The landfill is permitted to receive a maximum of 5, 000
tons per day and it is projected that current landfill capacitywill extend to 2021, but the Lamb Canyon
landfill has potential for expansion. The Lamb Canyon Landfill, Badlands Landfill and El Sobrante
Landfill have capacity for the solid waste generated by the project analyzed in the Previous
Assessments.
Previous Assessments noted that solid waste generated by construction and demolition sites may
account for as much as 22 percent of the solid waste stream. Prior to the issuance of grading permits,
the Previous Assessments required recycling of at least 50 percent of these materials, as required by
MM UTIL-4. Previous Assessments also identified MM UTIL-5, which would reduce solid waste
impacts through professional landscaping services who compost green waste. The proposed
development analyzed in Previous Assessments would comply with federal, State, and local statutes
and regulations related to solid waste, resulting in less than significant impacts.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to utilities and service systems. All impacts remained
less than significant with incorporation of MM UTIL-1 and MM UTIL-7.
Previously Identified Mitigation Measures
MM UTIL-1 The most efficient furnaces, water heaters, pool heaters and other equipment that
use natural gas shall be used in project construction. The use of kitchen appliances
that use natural gas and alternative, renewable energy sources, including solar and
wind turbine technologies, shall also be used to the greatest extent feasible.
MM UTIL-2 Title 24 of the California Administrative Code, which addresses energy conservation
in all proposed uses, shall be strictly enforced in project design and construction.
MM UTIL-3 All planned uses shall be connected to the city-wide sewer system.
MM UTIL-4 A recycling program shall be developed for all proposed uses. Recycling provisions
for commercial and business establishments should include separate recycling
bins. Items to be recycled at commercial establishments may include white paper,
computer legal paper, cardboard, and glass and aluminum cans.
MM UTIL-5 Professional landscaping services from companies which compost green waste
shall be utilized.
MM UTIL-6 The Project's fair share of public utilities, infrastructure and improvements required
to properly service the proposed uses shall be determined through consultation with
the City Department of Public Works in the Development Agreement and paid prior
to the issuance of grading permits.
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MM UTIL-7 Any existing or historic septic systems located on the site shall be abandoned in
accordance with federal, state, and local laws and regulations prior to the issuance
of building permits.
3.12.3 Existing Conditions
Energy
Electric services are provided to the City from IID and natural gas services are provided to the City of
SoCal Gas.
Wastewater Services
The CVWD is responsible for wastewater treatment in the City of La Quinta. The CVWD maintains a
network of sewer trunk lines throughout the City ranging in size from 4 to 24 inches in diameter. An
18- inch main line is located adjacent to the Project Site in the Jefferson Street right-of-way. The Mid -
Valley Reclamation Plant would treat wastewater generated from the Project Site.
Storm Drain Infrastructure
As discussed in Previous Assessments, existing and proposed golf courses within the Specific Plan
Area have sufficient capacity to accommodate drainage without any off -site drainage impacts.
The storm drain within Avenue 52 is designed to convey stormwater into the envelope of the proposed
second golf course along Avenue 52 and Jefferson Street (Planning Area 8) to allow for percolation
into the groundwater aquifer. The 2025 Project would incorporate similar amounts of open space as
identified in the Specific Plan to allow for percolation of water runoff into the aquifer.
Water Services
The Project Site is within the CVWD service area. CVWD's total water production reached 99,843
acre-feet per year (AFY) in 2020.40 CVWD's domestic water system has 64 pressure zones. This
consists of approximately 97 groundwater production wells, 2,000 miles of pipe, and 133 million
gallons of storage in 65 enclosed reservoirs.41 The primary water supply for CVWD is groundwater
from the Whitewater River Subbasin in the Coachella Valley and it supplements groundwater use
with imported water and use of reclaimed water.
40 Coachella Valley Water District. 2020 Coachella Valley Regional Urban Water Management Plan. Accessed July
2025. http://cvwd.org/DocumentCenter/View/5482/Coachella-Valley-RUWMP.
41 Coachella Valley Water District.2020 Coachella Valley Regional Urban Water Management Plan. Accessed July
2025. http://cvwd.org/DocumentCenterNiew/5482/Coachella-Valley-RUWMP.
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3.0—Impact Analysis
Approximately 19 acres of the Coachella Canal,42 are located within the boundaries of the Project
Site. Up to 97 percent of the 2025 Project's water usage for irrigation purposes, which is by far the
majority of the total water demand for the 2025 Project, may be obtained from the Coachella Canal
in accordance with the terms of the existing Water Agreement between the City and CVWD.
Indirectly, canal water will be used for groundwater recharge and source substitution throughout the
Coachella Valley. Water to the Specific Plan Area is provided by CVWD through the existing 18-inch
water main beneath SilverRock Way.
Solid Waste
The City has a franchise agreement with Burrtec Waste and Recycling Services, LLC (Burrtec) for the
provision of solid waste disposal within the City and the City's Sphere of Influence. Non -hazardous
household, commercial and most non -hazardous industrial solid waste collected in the City is taken
to the Edom Hill Transfer Station in Cathedral City. From there, waste is transported to one of three
landfills: the Lamb Canyon regional landfill; El Sobrante Landfill; orthe Badlands Landfill. The Project
Site would be served by Burrtec.
3.12.4 Analysis of Proposed Project
Energy
As detailed above, the City's General Plan identified that IID and SoCal Gas would provide electrical
service to the Project Site. Incorporation of MM UTIL-1 and MM UTIL-2 would improve energy
efficiency and further minimize the project's energy demand. Further, the 2025 Project would reduce
development intensity compared to the land uses analyzed in the Previous Assessments. Therefore,
impacts would be less than significant with mitigation incorporated.
Wastewater Services
As discussed above, the Project Site is connected to the City's sewage system. These sewer lines
would adequately serve the project as analyzed in the Previous Assessments. The 2025 Projectwould
reduce overall development intensity, which would reduce wastewater generation. Therefore,
sewage impacts would be less than significant.
Storm Drain Infrastructure
Storm drains to adequately serve the project analyzed in Previous Assessments have been
constructed. The existing Project Site, including the existing and proposed golf courses within the
Specific Plan Area have sufficient capacity to accommodate on -site drainage without off -site
drainage impacts. The 2025 Project would incorporate similar amounts of open space for the golf
42 Note: The Coachella Canal is a branch of the All -American Canal that brings Colorado River water into the Imperial
and Coachella Valleys. This information is from Coachella Valley Water District, Coachella Valley Water Management
Plan Update, Section 4 - Existing Water Supplies (January 2012), p. 4-14.
Meridian Consultants 3.0-5 8 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
course as identified in Previous Assessments, to allow for percolation of water runoff into the aquifer.
As a result, the 2025 Project would not require or result in the construction of new storm water
drainage facilities or expansion of existing facilities. The 2025 Project would reduce overall
development intensity compared to that analyzed in the Previous Assessments, which would reduce
demand on storm drain infrastructure. Therefore, impacts would be less than significant.
Water Services
As described above, domestic water is provided in the City by CVWD. A WSA and WSV were
developed for the project analyzed in the Previous Assessments, which confirmed that CVWD would
have the current and future water supply necessary to provide water for the Specific Plan and other
existing and planned future uses that would be served by the CVWD. The 2020 Coachella Valley
Regional Urban Water Management Plan confirms that CVWD has adequate water supplies to 2045
under normal, single and multiple dry years.43 As previously described, a majority of the 2025
Project's water usage is for irrigation purposes, which may be obtained from the Coachella Canal, in
accordance with the terms of the existing Water Agreement between the City and the CVWD. Further,
the 2025 Project would reduce overall development intensity compared to the project analyzed in the
Previous Assessments, which would reduce water demand. The water demand estimate for the
SilverRock Resort Project in the 2006 Water Supply Assessment (WSA) approved for the project was
approximately 2,361 acre-feet per year. The estimated water demand for the 2025 Project is
approximately 2,376 acre-feet per year.44 This potable water demand is less than one percent greater
than the demand estimate in the approved WSA. This incremental increase does not represent a
substantial increase in water demand for the project. The 2025 Project would not require water
service improvements, as previously proposed water infrastructure improvements as part of the
Specific Plan were already completed, including the 18-inch water main beneath SilverRock Way.
Impacts to water supplies and services would be less than significant.
Solid Waste
The City and Project Site are serviced by Burrtec. Solid waste generated in the Project Site would be
taken to the Edom Hill Transfer Station and then transported to either the Lamb Canyon Landfill,
Badlands Landfill, or the El Sobrante Landfill. The current annual disposal rate at the Lamb Canyon
43 Coachella Valley Water District. 2020 Coachella Valley Regional Urban Water Management Plan. 2021
44 677.1 acre-feet per year (residential) + 142.2 acre- feet per year (commercial) + 1,457.9 acre-feet per year (open
space) +98. 7 acre-feet per year (public park) = 2,376. 6 acre-feet per year. CVWD, WSA and WSV for the proposed
SilverRock Resort Specific Plan, (2006) Table 3. 1- 1.
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3.0—Impact Analysis
facility is approximately 50 million tons per year.45The landfill is permitted to receive a maximum of
5,000 tons per day and is projected that the current landfill capacity will extend to 2029.46
The Previous Assessments determined that with the implementation of MM UTIL-4 and MM UTIL-5,
which sets forth a recycling program for all proposed uses, and utilizes professional landscaping
services to compost green waste, impacts would be less than significant. The 2025 Project would
continue to implement those mitigation measures. Additionally, the 2025 Project would reduce
development intensity compared to the project analyzed in the Previous Assessments, resulting in
less solid waste generation. Therefore, the 2025 Project would be adequately served by solid waste
services.
The 2025 Project would comply with federal, State and local statues and regulations related to solid
waste, such as AB 341, SB 1016, Per Capita Disposal Rate and AB 939. Impacts to solid waste would
be less than significant with mitigation incorporated.
Utilities and service systems impacts associated with the 2025 Project would be similar to those
identified in the Previous Assessments and would be less than significant through the incorporation
of MM UTIL-1, MM UTIL-2, MM UTIL-4, and MM UTIL-5. No new significant impacts or increase in the
severity of any previously identified significant impacts would result from changes to the 2025
Project, new information, or changes to the circumstances under which the 2025 Project will be
undertaken.
45 CalRecycle. "2023 Riverside Unincorporated Electronic Annual Report Summary." Accessed July 2025.
https://rcwaste.org/sites/g/files/aldnop376/files/2024-08/2023%20EAR%20-%2OJurisd iction%2OSummary.pdf.
46 CalRecycle. "2023 Riverside Unincorporated Electronic Annual Report Summary." Accessed July 2025.
https://rcwaste.org/sites/g/files/aldnop376/files/2024-08/2023%20EAR%20-%2OJurisd iction%2OSu m ma ry.pdf.
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3.13 AESTHETICS
3.1 3.1 1 MUb[IUIu5
a. Have a substantial adverse effect on a scenic vista?
b. Substantially damage scenic resources, including, but not limited to, trees, rock outcroppings,
and historic buildings within a state scenic highway?
c. Substantially degrade the existing visual character or quality of the site and its
surroundings?
d. Create a new source of substantial light or glare, which would adversely affect day or
nighttime views in the area?
3.1 3.2 Summary of Findings in Previous Assessments
The Specific Plan contains design standards related to building heights, setbacks, scale and
architectural treatments that require developments adjacent to the Santa Rosa and San Jacinto
Mountains to maintain views from adjacent locations off -site. The Specific Plan has a range of
maximum building heights that range from 28 to 60 feet tall and maximum stories ranging from two
to five stories tall. Previous Assessments identified that the development of the Project Site would
include 2- to 3-story buildings that would allow views of the Santa Rosa and San Jacinto Mountains
from the adjacent buildings and the public rights -of -way. The planned development analyzed in
Previous Assessments would go through the site plan review process to ensure enforcement of the
City's development standards. Previous Assessments found that the planned development would
not obstruct views of the mountains and would result in less than significant impacts.
The 2035 General Plan identified Jefferson Street and Avenue 52 as image corridors. As roadways
with these classifications are required to be improved and maintained with appropriate setbacks,
landscaping materials and signage according to the Specific Plan, the planned development
analyzed in Previous Assessments would provide landscaping and parkway treatments consistent
with surrounding uses. This would be reviewed and enforced during site plan review. Previous
Assessments identified that potential aesthetic impacts along Jefferson Street and Avenue 52 would
be mitigated to less than significant levels through the implementation of MM AES-4, MM AES-6, and
MM AES-7. MM AES-4 would limit signage sizing based on location, size and maintenance; MM AES-
6 would ensure proposed development along scenic highways, roadways and corridors is reviewed
for compatibility with the natural and built environments; and MM AES-7 would regulate all grading
and development within scenic viewsheds to assure maximum viewshed protection and pedestrian
and vehicular activity.
There are no officially designated state scenic highways within the City, and the planned
development in Previous Assessments would not substantially damage scenic resources within a
state scenic highway. The Project Site does not contain scenic resources, including trees, rock
outcroppings, or historic buildings. The Ahmanson House, built after 1950, is located within the
Project Site. However, in Previous Assessments the Ahmanson House was not identified as a historic
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3.0—Impact Analysis
landmark. Previous Assessments found that the development of the Project Site would not
substantially damage scenic resources within a state scenic highway and impacts to scenic
resources along a state scenic highway would be less than significant.
Previous Assessments identified that development of the Project Site would develop vacant portions
of the Project Site and would improve the visual character of the undeveloped land with resort uses.
The development analyzed in Previous Assessments would be compatible with the Project Site's
surrounding uses and the visual character of the City, including golf communities. Previous
Assessments incorporated MM AES-1, MM AES-2, and AES-5 to further minimize visual character
impacts, resulting in less than significant impacts. MM AES-1 regulates landscape designs and
materials, would ensure that project design would complement the native desert environment; MM
AES-2 ensures that overhead utility lines would be undergrounded, subject to the review of the City
Engineer and Public Works Department; and MM AES-5, requires safe circulation, screened areas,
protected and enhanced outdoor seating areas, appropriate lighting levels, limited signage and
landscaping designs.
Previous Assessments found that development of the Project Site would comply with the City's Dark
Sky Ordinance with implementation of MM AES-3. MM AES-3 states that any proposed lighting on a
building or parking lot shall be shielded so that light is projected downward and not onto adjacent
properties or the public right-of-way.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to aesthetics. All impacts remained less than
significant with the incorporation of MM AES-1 through MM AES-7.
Previously Identified Mitigation Measures
MM AES-1 Landscape designs and materials that complement the native desert environment
shall be utilized in project design and construction.
MM AES-2 Overhead utility lines shall be undergrounded to the greatest extent possible through
the establishment of an undergrounding program and guidelines subject to the
review of the City Engineer and Public Works Department
MM AES-3 Outdoor lighting shall be limited to the minimum height, number of fixtures, and
intensity needed to provide sufficient security and identification in each
development, making every reasonable effort to protect the community's night skies,
consistent with the City Dark Sky Ordinance.
MM AES-4 Signage shall be limited to the locations, sizes, and maintenance requirements
necessary to provide functional identification.
MM AES-5 Safe, convenient vehicular and pedestrian circulation, screened outdoor
storage/loading and other unsightly areas, protected and enhanced outdoor seating
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areas, appropriate lighting levels, limited signage, and landscaping designs that
preserve and enhance visual resources shall be included in the design of any
commercial area on the Project Site.
MM AES-6 Development proposed along designated scenic highways, roadways and corridors
shall be reviewed for compatibility with the natural and built environments to assure
maximum viewshed protection and pedestrian and vehicular activity.
MM AES-7 All grading and development proposed within scenic viewsheds shall be regulated to
minimize adverse impacts to these viewsheds. All grading, development, and
landscaping plans shall be submitted to the City for review and approval prior to the
issuance of grading permits.
3.13.3 txibung Conditions
According to the City's General Plan EIR, the existing visual character of the City is characterized as
suburban, with residential neighborhoods, commercial shopping centers, office parks, golf courses,
parks, and community facilities.47 Development within the City is generally lower density and
buildings are typically low-rise structures. Surrounding uses near the Project Site include golf
courses, residential communities and open space areas.
The Project Site has been mass graded and contains the Arnold Palmer Golf Course, Ahmanson
House, and partially developed hotel and residential buildings from previous approvals. Scenic vistas
surrounding the Project Site include views of natural features, such as the Santa Rosa Mountains.
The Project Site is adjacent to the Santa Rosa and San Jacinto Mountains, which are identified as
visual resources in the City's 2035 General Plan.
There are no state scenic highways within the City.48 The Project Site is adjacent to two (2) image
corridors, Jefferson Street and Avenue 52.
Existing sources of light and glare near the Project Site are located along major arterials, such as
Jefferson Street, produce light and glare from signalized intersections, street lamps, and vehicle
headlights. Additionally, light from surrounding developments contribute to the ambient lighting of
the Project area. Lightingwithin the Project Site includes lightingfrom the golf course and clubhouse
for the purpose of nighttime visibility, safety, security and operation.
3.1 3.4 Analysis of Proposed Project
As discussed above, the Project Site is completely graded and partially developed. There are no
existing scenic resources on the Project Site. Scenic vistas and resources near the Project Site
47 City of La Quinta, Environmental Impact Report for the City of La Quinta General Plan (2013).
48 Caltrans. "California State Scenic Highways." Accessed July 2025.
https://caLtrans.maps.arcgis.com/apps/webappviewer/index.html?id=465dfd3d8O7c46cc8e8O57116fl aacaa.
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include the Santa Rosa and San Jacinto Mountains. The Project Site would adhere to design
standards set forth in the Specific Plan, which require developments adjacent to the mountains to
maintain views from adjacent locations off -site. These design standards regulate building height,
setbacks, scale, and architectural treatments. The 2025 Project would allow the development of
buildings with a maximum height of 60 feet, which would adhere to the Specific Plan design
regulations and allowviews of the Santa Rosa and San Jacinto Mountains from the adjacent buildings
and the public rights -of -way. Review of the site plan for the 2025 Project would ensure compliance
with the City's development standards. Accordingly, the 2025 Project would not obstruct views of
nearby scenic resources and vistas.
Jefferson Street and Avenue 52 are adjacent to the Project Site, which are both identified as image
corridors in the 2035 General Plan. Development of the 2025 Project would adhere to roadway
improvement requirements, which include appropriate setbacks, landscaping materials, and
signage. The 2025 Project would provide landscaping and parkways consistent with surrounding
uses. Site plan review of the 2025 Project would further ensure improvements are consistent with
surrounding uses.
There are no officially designated state scenic highways within the City. Therefore, the 2025 Project
would not substantially damage scenic resources within a state scenic highway.
In 2017, the City recorded a property covenant49 that recognizes the Ahmanson Ranch House as a
historic resource and limits alterations to the building. This covenant requires the Ahmanson Ranch
House property to be preserved as an historic resource, unless modifications are approved by the
City Council under its regulatory and design review authority, in accordance with all applicable laws.
Under the proposed Reinstated and Amended Development Agreement, the Ahmanson Ranch
House Property remains subject to these same protections. Any future proposal to modify the
Ahmanson Ranch House would be subject to City Council review and all applicable requirements of
CEQA.
The City's 2023 Historic Resource Survey identifies the Ahmanson House as ahistoric resource.50
The existing Ahmanson House property is intended to be repurposed for use as a restaurant or other
hotel amenity, consistent with the existing covenant. No significant aesthetic impacts would occur.
The 2025 Project would develop resort uses and a second golf course that would improve the visual
character of the largely undeveloped Project Site. Surrounding uses near the Project Site include golf
courses, residential communities and open space areas. The 2025 Project would be compatible with
the site's surrounding uses and visual character of the City. As identified in Previous Assessments,
49 City of La Quinta. "Amendment No. 3 To Purchase, Sale, and Development Agreement." Accessed September 2025.
https://laglaserweb.laquintaca.gov/WebLink/DocView.aspx?dbid=1 &id=505711 &repo=CityofLaQuinta.
50 City of La Quinta. "Historic Resource Survey and Context Statement." Accessed August 2025.
https://www.Laquintaca.gov/home/showpu blisheddocu ment/48755/638373717730870000.
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the 2025 Project would adhere to MM AES-1, MM AES-2, MM AES-4, MM AES-5, MM AES-6, and MM
AES-7, which would further ensure the 2025 Project is visually compatible with the surrounding land
uses and the City's visual character.
Due to the primarily urbanized nature of the area, a moderate level of ambient nighttime light already
exists. Nighttime lighting sources include streetlights, vehicle headlights, and building illumination.
The 2025 Project would add new lighting sources within the Project Site. However, the 2025 Project
would comply with the City's Dark Sky Ordinance and MM AES-3, which states that any proposed
lighting on a building or parking lot shall be shielded so that light is projected downward and not onto
adjacent properties or the public right-of-way, resulting in less than significant light and glare
impacts.
Aesthetics impacts associated with the 2025 Project would be similar to those identified in the
Previous Assessments and would be less than significant through the incorporation of MM AES-1
through MM AES-7. No new significant impacts or increase in the severity of any previously identified
significant impacts would result from changes to the 2025 Project, new information, or changes to
the circumstances under which the 2025 Project will be undertaken.
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3.14 CULTURAL RESOURCES
3.14.1 i iiiebiwids
a. Cause a substantial adverse change in the significance of a historical resource
b. Is defined in CEQA Guidelines Section 15064.5?
c. Cause a substantial adverse change in the significance of an archaeological resource
pursuant to CEQA Guidelines, Section 15064.5?
d. Directly or indirectly destroy a unique paleontological resource or site or unique geologic
feature?
e. Disturb any human remains, including those interred outside of formal cemeteries?
3.14.1 Summary of findings in Previous Assessments
The Project Site was originally undeveloped except for the abandoned single-family resident house
and the Ahmanson House, the house belonging to the philanthropic Ahmanson family. A cultural
studywas conducted for the previous project and determined that none of the structures on the site
had historic landmark status, nor were there any known cultural resources on the site. Since the
initial2002 MND, the Specific Plan Area has been mass graded and developed with the Arnold Palmer
Golf Course; no paleontological resources, archeological resources or human remains were found
during this time. However, as part of the 2035 General Plan Update, a Paleontological Resources
Technical Report was completed, which found that the Project Site is in an area designated as having
a high palaeontologic sensitivity. Additionally, the potential for encountering archeological and
paleontological resources during development of the site was identified. Previous Assessments
identified MM CUL-1, which requires the retainment of a qualified archaeological and
paleontological monitor in order to reduce potential impacts to archaeological and paleontological
resources to a less than significant level.
Previous Assessments stated that if human remains were discovered during ground -disturbing
activities, all such activities within a 100-foot radius of the find would be halted immediately and the
designated representatives would be notified. All development activities would be conducted in
accordance with applicable regulations related to the discovery of human remains in California
Health and Safety Code Sections 7050. 5 and 7052 and California Public Resources Code Section
5097.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to cultural resources. All impacts remained less than
significant with mitigation incorporated.
Previously Identified Mitigation Measures
MM CUL-1 During any ground altering activities associated with project grading or construction,
including demolition of existing modern structures and facilities, the project area
shall be monitored by a qualified archaeological monitor and a qualified
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paleontological monitor shall be required in the event of discovery of resources. The
monitor shall have the authority to halt any activities impacting potentially significant
cultural resources until the resources can be evaluated for significant and cleared or
mitigated. The monitoring program shall also include consultation with the local
Native American representatives (e.g., Torres -Martinez and/or Morongo
Reservations) consistent with applicable statutes governing cultural resources.
3.14.7 Existing Conditions
In 2023, the City completed a Historic Resource Survey and Context Statement to evaluate the
significance and integrity of historic -era properties within the City under the criteria of the National
Register of Historic Places (NRHP), the California Register of Historical Resources (CRHR), and the
La Quinta Historic Resources Inventory (Local Register). The survey identified 489 historic -era
properties within the City boundaries. 363 sites were documented and evaluated, with 103 of these
properties identified as significant and eligible for designation and listing on the Local Register,
CRHR, or NRHP, either individually or as contributors to a local historic district. 259 properties were
identified as not significant and ineligible for listing on the Local Register, CRHR or NRHP.51
The City's 2023 Historic Resource Survey identifies the Ahmanson House as eligible for local listing
and the National and California Registers.52 The nearest historic resource is approximately 1.5 miles
west of the Project Site but is separated from the Project Site by the base of the Santa Rosa
Mountains. The Arnold Palmer Classic Golf Course is located on the most western portion of the site
alongside the edge of the Santa Rosa Mountains; however, this area has already been disturbed by
previous development. The Project Site was previously mass graded, and portions of the Project Site
have been disturbed and developed.
3.14.4 Analysis of Proposed Project
In 2017, the City recorded a property covenant53 that recognizes the Ahmanson Ranch House as a
historic resource and limits alterations to this building. This covenant requires the Ahmanson Ranch
House propertyto be preserved as a historic resource, unless modifications are approved by the City
Council under its regulatory and design review authority, in accordance with all applicable laws.
Under the proposed Reinstated and Amended Development Agreement, the Ahmanson Ranch
House Property remains subject to these same protections. Any future proposal to modify the
Ahmanson Ranch House would be subject to City Council review and all applicable requirements of
CEQA. As described above, the City's 2023 Historic Resource Survey also identifies the Ahmanson
51 City of La Quinta. "Historic Resource Survey and Context Statement." 2023. Accessed August 2025.
https://www.Laquintaca.gov/home/showpu blisheddocu ment/48755/638373717730870000.
52 City of La Quinta. "Historic Resource Survey and Context Statement." Accessed August 2025.
https://www.Laquintaca.gov/home/showpu blisheddocu ment/48755/638373717730870000.
53 Covenant Affecting Real Property (Ahmanson Ranch House), recorded on May 11, 2017 (Instrument No. 2017-
0189769).
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House as eligible for local listing or designation and as eligible for the NR and CR individuallythrough
survey evaluation.54 No impacts to historic resources were identified forth e project. The Project Site
was previously mass graded. However, there is potential for the unanticipated discoveries of
archeological, paleontological resources and human remains with further development of the site.
The 2025 Project would implement MM CUL-1, which would ensure impacts to archaeological and
paleontological resources would remain less than significant. Therefore, impacts would be less than
significant with mitigation incorporated.
Although there is little potential for the accidental discovery of human remains at this point in time
as the site has been fully graded and partially developed, if human remains were to be discovered
during construction, the requirements of the California Health and Safety Code Section 7050.5
would apply, and disposition of the human remains and any associated grave goods would occur in
accordance with PRC Section 5097.91 and 5097.98 would be implemented.
Cultural resource impacts associated with the 2025 Project would be similar to those identified in
the Previous Assessments and would be less than significant with mitigation incorporated. No new
significant impacts or increase in the severity of any previously identified significant impacts would
result from changes to the 2025 Project, new information, or changes to the circumstances under
which the 2025 Project will be undertaken.
54 City of La Quinta. "Historic Resource Survey and Context Statement." Accessed August 2025.
https://www.Laquintaca.gov/home/showpu blisheddocu ment/48755/638373717730870000.
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3.15 RECREATION
3.1 5.1 i niebiioids
a. Would the project increase the use of existing neighborhood and regional parks or other
recreational facilities such that substantial physical deterioration of the facility would occur
or be accelerated?
b. Does the project include recreational facilities or require the construction or expansion of
recreational facilities, which might have an adverse physical effect on the environment?
3.1 5.2 Summary of Findings in Previous Assessments
Previous Assessments identified that the Project Site would include two (2) public golf courses along
with additional public park space, which would be considered recreational resources within the City.
Development of the Project Site could generate a small number of residents within the Specific Plan
Area, as is typical for homes in resort communities in the Coachella Valley. Previous Assessments
identified the Quimby Act fees, or an in -lieu parkland fee, would be paid to the Cityto offset potential
resident use of parkland located outside of the Specific Plan Area. Development of the Project Site
would provide additional public recreational services without significantly increasing the City's
population. Previous Assessments found that development of the Project Site would not result in
increased demand on neighborhood or regional park facilities, nor would it affect existing
recreational opportunities.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to recreation. All impacts remained less than
significant.
3. 1 5.j Existing Conditions
The City owns and operates several park facilities including both active and passive recreational
opportunities for residents and visitors. There are four (4) community parks in the City, including the
16.75-acre La Quinta Sports Complex, the 18-acre La Quinta Park (part of Old Town La Quinta), the
17.5-acre Civic Center Campus, and the 14-acre SilverRock Park located in the northwest portion of
the SilverRock Specific Plan area. The City's four (4) neighborhood parks include Fritz Burns Park,
Adams Park, Monticello Park, and Pioneer Park. The City has five (5) mini parks, including Eisenhower
Park, Seasons Park, Saguaro Park, Desert Pride and Velasco Park. The City's Cove Oasis is a 114-acre
natural open space area with trails, and the Fred Wolff Nature Preserve is a 20-acre natural open
space area. Additionally, the City recently developed a skate park.
There are approximately 5,259 acres of open space areas set aside for recreational facilities within
the City. These developed open -space recreational areas include a variety of City owned and
maintained parks and facilities, County of Riverside -owned parks, Desert Recreation District
facilities, and public and private golf courses. In addition, there are approximately 6,933 acres of
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natural open space areas within the City, which include hiking trails, equestrian trails, and other
passive recreation opportunities.
3.1 5.,+ Analysis of Proposed Project
As further described in Section 3.2: Population and Housing, the 2025 Project would generate a
population of 1,690 people from the proposed 599 hotel/residential units. The Quimby Act,
established by state law, requires that every county and city meet the standard of 3 acres of parkland
per 1,000 residents.55 The 2025 Project would require 5.07 acres of recreational space in order to
adhere to the QuimbyAct.56 The City's 2035 General Plan's Policy PR 1.2 aims to provide a minimum
standard of 5 acres of parkland for every 1,000 residents, which would require 8.45 acres for the 2025
Project.57,58
The recreational amenities in the 2025 Project would include the approximately 173-acre Arnold
Palmer Golf Course, the additional 18-hole golf course, a 20,000-SF clubhouse, and other amenities
like tennis, pickleball, padel among others, which will well exceed the recreational acres required to
adhere to the Quimby Act and Policy PR 1.2. Therefore, the 2025 Project would not be required to pay
any Quimby Act fees. The 2025 Project would not result in increased demand on neighborhood or
regional park facilities, nor would it affect existing recreational opportunities. Impacts on recreation
would be less than significant.
Recreation impacts associated with the 2025 Project would be similar to those identified in the
Previous Assessments and would be less than significant. No new significant impacts or increase in
the severity of any previously identified significant impacts would result from changes to the 2025
Project, new information, or changes to the circumstances under which the 2025 Project will be
undertaken.
55 California Government Code. Section 66477. "Quimby Act."
56 (3 acres / 1000 residents) x (1,690 residents) = 5.07 acres of recreational area toad hereto the Quimby act.
57 City of La Quinta. 2035 La Quinta General Plan. (p. 11-191). Accessed July 2025.
https://www.Laquintaca.gov/home/showpu b[isheddocu ment/33559/636340813730530000.
58 (1,690 residents / 1000 residents) x 5 (acres) = 8.45 required acres.
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3.16 GREENHOUSE GASES
3.16.1 1 nrebnulu�,
a. Generate greenhouse gas emissions, either directly or indirectly, that may have a significant
impact on the environment?
b. Conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the
emissions of greenhouse gases?
3.16.2 Summary of Findings in Previous Assessments
At the time of the preparation of the 2002 MND and 2006 Addendum, the topic of Greenhouse Gases
(GHGs) and the associated checklist questions were not included in the CEQA Guidelines Appendix
G Checklist and, therefore, analysis was not required. Greenhouse gas emissions thresholds were
added in 2010, and as such, the 2014 Addendum addressed GHG emissions resulting from the 2006
Addendum and the 2014 Addendum.
The 2014 Addendum concluded that development of the Project Site with proposed land uses would
not result in the generation of greenhouse gas emissions that would have a significant impact on the
environment. Construction activities analyzed in the Previous Assessment were estimated to
generate 8,595 metric tons of carbon dioxide equivalents (MTCO2e) GHG emissions. Operational
emissions were estimated with the incorporation of the standard project design features (PDFs)
identified in the City's 2035 General Plan. Design features included GHG PDF-1 through GHG PDF-3
focused on efficient landscaping, GHG PDF-4 requiring efficient building design, GHG PDF-5
implementing renewable energy, GHG PDF-6 referring to recycling and composting, and GHG PDF-
7 through GHG PDF-9 to reduce reliance on traditional automobiles for transportation.
The development of the Project Site was found to be consistent with the targets set forth in the City's
Greenhouse Gas Reduction Plan (GGRP) by achieving 10 percent below 2005 emissions levels by
2020 and 28 percent below 2005 levels by 2035. For this reason, the 2014 Addendum also concluded
that development of the Project Site would be consistent with the goals of AB 32 and the GGRP set
forth by the City and would not conflict with an applicable plan, policy or regulation adopted for the
purpose of reducing the emissions of greenhouse gases.
No new information or changed circumstances were identified in the Previous Assessments that
resulted in new or more severe impacts related to greenhouse gas emissions. All impacts remained
less than significant.
Previously Identified Project Design Features
The following design features were identified by the 2014 Addendum:
GHG PDF-1 Landscaping designs shall consider the use of trees and othervegetation to maximize
the shading of buildings in order to reduce energy requirements for heating and
cooling and provide carbon storage.
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GHG PDF-2 Desert landscaping techniques shall be utilized, including the use of automated
water efficient irrigation systems and devices.
GHG PDF-3 Smart scalping practices shall be encouraged to minimize fugitive dust emissions
and reduce water demands.
GHG PDF-4 Building designs shall strive to exceed Title 24 requirements or achieve LEED or
Energy Star standard equivalence ratings or better; buildings shall be equipped with
energy efficient and water conserving appliances and fixtures; building design shall
include natural lighting and ventilation; and light colored "cool" roofs and cool
pavement shall be utilized.
GHG PDF-5 New buildings and substantial remodels including new roofs, should be designed to
accommodate rooftop photovoltaic or above parking solar.
GHG PDF-6 Recycling and composting facilities and programs shall be readily available for all
new and existing land uses and every effort shall be made to divert the landfill waste
stream.
GHG PDF-7 Promote the use of electric vehicles and alternative modes of transport by providing
safe and convenient bicycle, scooter and other non -motorized transport travel lanes,
and parking, as well as preferential plug-in stations for electric vehicle parking.
GHG PDF-8 Assure all new development has safe and convenient access to public transit routes
that include seated, shaded bus stop areas.
GHG PDF-9 Incorporate recreational open space adjacent to or as part of residential land uses.
3.16.3 Existing Condition, --
The California State Legislature enacted Assembly Bill (AB) 32, the California Global Warming
Solutions Act of 2006. AB 32 focuses on reducing greenhouse gas (GHG) emissions in California.
GHGs, as defined under AB 32, include carbon dioxide (CO2), methane, NOx, hydrofluorocarbons,
perfluorocarbons, and sulfur hexafluoride. AB 32 requires that GHGs emitted in California be
reduced to 1990 levels by the year 2020. The California Air Resources Board (CARB) approved a
Climate Change Scoping Plan (Scoping Plan) on December 11, 2008, as required by AB 32. The
Scoping Plan proposed a "comprehensive set of actions designed to reduce overall carbon GHG
emissions in California, improve our environment, reduce our dependence on oil, diversify our energy
sources, save energy, create new jobs, and enhance public health.1159 The Scoping Plan had a range
of GHG reduction actions, including direct regulations; alternative compliance mechanisms;
monetary and nonmonetary incentives; voluntary actions; market -based mechanisms, such as a
cap -and -trade system; and an AB 32 implementation regulation to fund the program.
59 California Air Resources Board (CARB). Climate Change Scoping Plan: A Framework for Change.
https://www.arb.ca.gov/cc/scopingpLan/document/adopted_scoping_pLan.pdf. Accessed July 2025.
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The most recent version of the Scoping Plan60 was approved on December 15, 2022, and is the most
comprehensive and far-reaching Scoping Plan developed to date. It identifies a technologically
feasible, cost-effective, and equity -focused path to achieve new targets for carbon neutrality by2045
and to reduce anthropogenic GHG emissions to at least 85 percent below 1990 levels, while also
assessingthe progress California is making toward reducing its GHG emissions by at least 40 percent
below 1990 levels by 2030, as called for in SB 32 and laid out in the 2017 Scoping Plan.61 The 2030
target is an interim but important stepping stone along the critical path to the broader goal of deep
decarbonization by 2045.
The City adopted a GGRP in order to meet the requirements of AB 32. The GGRP establishes current
emissions and sets targets for long-term reductions. The GGRP includes a comprehensive inventory
of greenhouse gas emissions generated City-wide, including those generated by local government
activities. Future emissions of greenhouse gases are projected, reduction targets set, and policies
and programs are proposed as part of the GGRP in order for the City to meet mandated reductions.
To be consistent with AB 32, the reduction target is to achieve 1990 level emissions by 2020, and 80
percent below 1990 levels by 2050.62 Pursuant to AB 32, ARB established statewide 1990
greenhouse gas emissions as 427 million metric tons of carbon dioxide equivalents (MMTCO2e).63
Community -wide activities in the City generated an estimated 1,228,050 metric tons of carbon
dioxide equivalents (MTCO2e) in 2005.
3.1 b.4 Hnaiysis or Nroposed Project
Construction and operational emissions were modeled in CalEEMod (Version 2022.1) for the land
uses described in the 2014 Addendum and the land uses described in the 2025 Project to provide an
accurate comparison of emissions.
Construction
Construction activity impacts are relatively short in duration, so they contribute a relatively small
portion of the total lifetime GHG emissions of a project. The combustion of fossil fuels in
construction equipment results in GHG emissions of CO2 and smaller amounts of CH4 and N2O.
Emissions of GHG would also result from the combustion of fossil fuels from vendor trucks delivering
materials and construction worker vehicles commuting to and from the Project Site. Typically, light-
60 CARB. "2022 Scoping Plan Documents." https://ww2.arb.ca.gov/our-work/programs/ab-32-climate-change-
scoping-plan/2022-scoping-plan-
docu ments#:-:text=The%202022%20Scoping%20Plan%20for,directed%20by%20Assem bly%20Bi 11%201279.
Accessed July 2024.
61 CARB. California's 2017 Climate Change Scoping Plan. 2017. ww2.arb.ca.gov/sites/default/files/classic/cc/
scopi ngpla n/scopi ng_pla n_2017.pdf.
62 City of La Quinta. 2035 La Quinta General Plan.
63 California Environmental Protection Agency, Air Resources Board. "California 1990 Greenhouse Gas Emissions
Level and 2020 Limit (2014)." http://www.arb.ca.gov/cc/inventory/l990level/1990Level.htm. Accessed July 2025.
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duty and medium -duty automobiles and trucks would be used for worker trips and heavy-duty trucks
would be used for vendor trips. The vast majority of motor vehicles used for worker trips would rely
on gasoline as an energy source, while motor vehicles used for vendor trips would primarily rely on
diesel as an energy source.
As presented in Table 3.16-1: Construction Greenhouse Gas Emissions, construction activities
associated with the 2025 Project would generate 15,397 MTCO2e GHG emissions. The SCAQMD
recommends annualizing construction -related GHG emissions over a project's lifetime, defined as a
30-year period, in orderto include these emissions as part of the annual total operational emissions.
Therefore, construction -related GHG emissions have been annualized over this period and included
in the annual operational emissions.
As described above, construction activities associated with the 2014 Addendum were modeled in
CaIEEMod (Version 2022.1) for the land uses described in the 2014 Addendum in order to provide
accurate comparison of emissions to the 2025 Project due to updates in the modeling software.
Construction activities associated with the 2025 Project would generate a reduced amount of GHG
emissions compared to those estimated in the 2014 Addendum as shown in Table 3.16-1. GHG
would be reduced due to the reduction is land use intensity compared to the Previous Assessments.
2026
195
669
2027
1,375
814
2028
1,821
816
2029
1,169
2,817
2030
1,164
3,671
2031
760
3,602
2032
592
3,544
2033
163
2,679
2034
0
—
2035
810
—
2036
802
—
2037
762
—
2038
760
—
2039
757
—
2040
757
—
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2041 752 —
2042
750 —
2043
748 —
2044
748 —
2045
512 —
Source: CaIEEMod Emissions calculations are provided in Appendix A: Air Quality and Greenhouse Gas Emissions Outputs.
Note: Totals in table may not appear to add exactly due to rounding in the computer model calculations.
2014 Addendum assumed eight (8) year construction schedule.
Abbreviations: MTCO2e = metric tons of carbon dioxide emissions.
Operation
Emissions from mobile and area sources and indirect emissions from energy and water use,
wastewater, as well as waste management would occur every year after full development of the
Project. A summary of the annual operational emissions of both the 2025 Project and the 2014
Addendum Project are provided in Table 3.16-2: Operational GHG Emissions. As described above,
operational activities associated with the 2014 Addendum were modeled in CaIEEMod (Version
2022.1) for the land uses described in the 2014 Addendum in order to provide an appropriate
comparison of emissions to the 2025 Project due to updates in the modeling software. The operation
estimates represent emissions with incorporation of the standard design features identified in the
City's 2035 General Plan during operations.
To provide guidance to local lead agencies on determining significance for GHG emissions in their
CEQA documents, SCAQMD staff has proposed a tiered series of thresholds to be applied based on
the amount of GHG emissions generated by a proposed project and the type of project. The first tier
does not apply to the 2025 Project because the Project is not categorically exempt from CEQA. The
second tier threshold of significance is applied if the project is subject to an adopted GHG reduction
plan. The City has adopted a GGRP which applies to the 2025 Project. The analysis presented below
compares the proposed Project's GHG emission reductions from the 2014 Addendum Project. The
2025 Project's GHG emission reduction will then be compared to the City's GGRP reduction targets.
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Construction (amortized) 513 620
Operational (mobile)
12,272
17,101
sources*
Area sources
11
39
Energy
3,642
4,390
Waste
186
266
Water
105
118
Refrigerants
61
130
An n ual Tota l
16,789
22,664
Source: CalEEMod Emissions calculations are provided in Appendix A: Air Quality and Greenhouse Gas Emissions Outputs.
Notes: Totals in table may not appear to add exactly due to rounding in the computer model calculations.
Abbreviations: MTCO2e = metric tons of carbon dioxide emissions.
*N20 emissions account for 0.18 and 0.30 MTCO2e/year, respectively.
Community -wide activities in the City generated an estimated 1,228,050 MTCO2e in 2005. As such,
the targets set forth in the GGRP are to achieve 10 percent below 2005 emission levels by 2020 and
28 percent below 2005 levels by 2035.64 To reach these targets, the GGRP includes a wide range of
implementation tools which can be implemented by City officials, residents, and business owners.
As shown in Table 3.16-2, the operational GHG emissions for the 2025 Project would be 16,789
MTCO2e per year. When modeled in CaIEEMod (Version 2022.1) for the land uses evaluated in the
2014 Addendum, the operational GHG emissions for the 2014 Addendum Project would result in
22,644 MTCO2e per year. The 2025 Project would reduce GHG emissions by 5,875 MTCO2e per year,
approximately 26 percent, from the 2014 Addendum Project. Therefore, GHG emissions generated
bythe 2025 Project would be consistent with the targets set forth in the GGRP by achieving 10 percent
below 2005 emissions levels by 2020 and 28 percent below 2005 levels by 2035. Impacts would be
less than significant.
Conflict with an Applicable Plan, Policy, or Regulation
The GGRP sets targets and identifies reduction measures to ensure that the City is consistent with
AB 32 goals of reducing GHG emissions by 2020 and 2035. As previously identified, the GGRP
identified that the City would need to achieve a 10 percent reduction from 2005 levels by 2020 and
28 percent reduction from 2005 levels by 2035. As indicated in Table 3.16-2, the 2025 Project would
result in 16,694 MTCO2e per year. The 2025 Project would reduce GHG emissions by 5,970 MTCO2e
per year, approximately 26 percent, compared to the emission estimate for the 2014 Addendum. The
2025 Project would be consistent with the goals of AB 32 and the GGRP set forth by the City for the
64 City of La Quinta. 2035 La Quinta General Plan.
Meridian Consultants 3.0-76 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
purpose of reducing the emissions of greenhouse gases by 10 percent below 2005 levels and by 28
percent below 2005 levels in 2035. The 2025 Project would not conflict with AB 32 or the GGRP.
GHG impacts associated with the 2025 Project would be similar to those identified in the Previous
Assessments and would be less than significant. No new significant impacts or increase in the
severity of any previously identified significant impacts would result from changes to the 2025
Project, new information, or changes to the circumstances under which the 2025 Project will be
undertaken.
Meridian Consultants 3.0-77 SilverRock Resort Project Addendum
September 2025
3.0—Impact Analysis
Meridian Consultants 3.0-78 SilverRock Resort Project Addendum
September 2025
4.0 REFERENCES
Brawner, Lee B., Donald L., Jr." Determining Your Public Library's Future Size: A Needs Assessment
and Planning Model." Institute of Education Sciences. 1996. Accessed July
2025. https://eric.ed.gov/?id=ED392455&utm_.
Cal Fire Riverside Unit Riverside County Fire Department. "RE: East Lake Plan Amendment #11
Project Request for Information." Accessed July 2025. https://www.Lake-
elsinore.org/DocumentCenter/View/l926/Appendix-J---Correspondence-with-Police-and-
Fire-PDF#::text=Type%201 %2OEngine-
,(structural%20firefighting%20apparatus).,stations%20to%20the%20project%20site?.
CalFire. "Fire Hazard Severity Zones." Accessed July
2025. https://experience.arcgis.com/experience/03beab8511814e79aOe4eabfOd3e7247/.
California Air Resources Board. "2022 Scoping Plan Documents." https://ww2.arb.ca.gov/our-
work/programs/ab-32-climate-change-scoping-plan/2022-scoping-plan-
documents#:-:text=The%202022%2OScoping%20Plan%20for,d irected%20by%2OAssembl
y%20Bill%201279. Accessed July 2024.
California Air Resources Board. California's 2017Climate Change Scoping Plan. 2017.
ww2.arb.ca.gov/sites/default/files/classic/cc/scopingplan/scoping_ptan_2017.pdf.
California Air Resources Board. Climate Change Scoping Plan: A Framework for Change.
https://www.arb.ca.gov/cc/scopingplan/document/adopted—scoping—plan.pdf. Accessed
July 2025.
California Department of Finance. "E-5 Population and Housing Estimates for Cities, Counties, and
the State, 2020-2025." Accessed July 2025.
https://dof.ca.gov/forecasting/demographics/estimates/e-5-population-and-housing-
esti mates-for-cities-cou nties-a nd-the-state-2020-2025/.
California Environmental Protection Agency, Air Resources Board. "California 1990 Greenhouse
Gas Emissions Level and 2020 Limit (2014)."
http://www.arb.ca.gov/cc/inventory/l990level/19901evel.htm. Accessed July 2025.
California Government Code. Section 66477. "Quimby Act."
CalRecycle. "2023 Riverside Unincorporated Electronic Annual Report Summary." Accessed July
2025. https://rcwaste.org/sites/g/files/aLdnop376/files/2024-08/2023%20EAR%20-
%20Jurisdiction%2OSummary.pdf.
Caltrans. "California State Scenic Highways." Accessed July 2025.
https://cattrans.maps.arcgis.com/apps/webappviewer/index.htmt?id=465dfd3d8O7c46cc
8e8057116f1 aacaa.
CEQA Guidelines, Sections 15162-15164.
Meridian Consultants 4.0-1 Addendum to the SilverRock Resort Project
September 2025
4.0—References
City of La Quinta Municipal Code, sec. 6.08.060. Disturbances by Construction Noises.
City of La Quinta. "Amendment No. 3 To Purchase, Sale, and Development Agreement." Accessed
September 2025.
https://LagLaserweb.laquintaca.gov/WebLink/DocView.aspx?dbid=1 &id=505711 &repo=Cit
yofLaQuinta.
City of La Quinta. "General Plan Preferred Land Use Map." August 2022. Accessed July 2025.
https://www.Laquintaca.gov/home/showpublisheddocument/48031 /638119809636070000
City of La Quinta. "Historic Resource Survey and Context Statement." Accessed August 2025.
https://www.laquintaca.gov/home/showpublisheddocument/48755/638373717730870000
City of La Quinta. 2035 La Quinta General Plan EIR. Accessed July 2025.
https://laglaserweb.laquintaca.gov/WebLink/Browse.aspx?id=104281 &dbid=1 &repo=Cityo
fLaQuinta.
City of La Quinta. 2035 La Quinta General Plan. (p. 11-191). Accessed July 2025.
https://www. taq u i ntaca.gov/home/showpu blisheddocument/33559/636340813730530000
City of La Quinta. 2035 La Quinta General Plan. Chapter IV, Environmental Hazards. Flooding and
Hydrology. "Exhibit IV-6. FEMA Flood Zones and Flood Control Facilities." 2013.
https://www.Laquintaca.gov/business/design-and-development/planning-division/2035-1a-
quinta-general-plan. Accessed July 2025.
City of La Quinta. 2035 La Quinta General Plan. Economic Development. 2013. p. II-168.
City of La Quinta. 2035 La Quinta General Plan. Energy and Mineral Resources. Mineral Resource
Zone Map. "Exhibit III-1." 2013.
City of La Quinta. Building Codes. Accessed July 2025.
https://www.Laquintaca.gov/business/design-and-development/building-division/building-
codes.
City of La Quinta. Cityof La Quinta General Plan Update Noise Element Technical Report. June
2013.
https://laglaserweb.laquintaca.gov/WebLink/DocView.aspx?id=104300&dbid=1 &repo=Cit
yofLaQuinta. Accessed July 2025.
City of La Quinta. City of La Quinta General Plan Update: Biological Resources. June 2010.
City of La Quinta. General Plan Noise Element. Accessed July 2025.
https://www.laquintaca.gov/home/showpublisheddocument/33565/638187961508370000
City of La Quinta. General Plan Update. Cultural Resources Technical Report (2010).
Meridian Consultants 4.0-2 Addendum to the SilverRock Resort Project
September 2025
4.0—References
City of La Quinta. Historic Preservation. "Historic Resources Survey/Database and Map." Historic
Resources Inventory Database. 2012.
City of La Quinta. SilverRock Resort Specific Plan. 2006.
City of La Quinta. Technical Background Report to the Safety Element of the La Quinta 2035
General Plan Update. Seismic Hazards. Geologic Hazards. Flooding Hazards. June 2010.
Coachella Valley Water District. 2020 Coachella Valley Regional Urban Water Management Plan.
Accessed July 2025. http://cvwd.org/DocumentCenter/View/5482/Coachella-Valley-
RUWMP.
Coachella Valley Water District. Coachella Valley Water Management Plan Update. January2012.
Corey, Kennon A., and David Elms. U.S. Fish and Wildlife Service and California Department of Fish
and Wildlife. Notification that Peninsular Bighorn Sheep (Ovis Canadensis nelsoni) are
using artificial sources of food in unfenced urban areas in the City of La Quinta, Riverside
County, California Letter. February 28, 2014.
Department of Finance. "Total State Population." Accessed July 2025. https://dof.ca.gov/wp-
content/uploads/sites/352/Forecasting/Demographics/Documents/E-
1 _2025_Press_ReLease. pdf.
Department of Toxic Substances Control. "EnviroStor." Accessed July 2025.
https://www.envirostor.dtsc.ca.gov/public/search?basic=True.
Desert Sands Unified School District. "Fee Justification Study for New Residential and
Commercial/Industrial Development." 2020. Accessed July 2025. https://cdnsm5-
ss18.sharpschoot.com/Userfites/DBFiles/server_24405182/202005/30304416.pdf.
South Coast Air Quality Management District. "General Forecast Areas and Air Monitoring Areas."
Map. http://www.agmd.gov/docs/default-source/default-document-library/map-of-
monitoring-areas.pdf. Accessed July 2025.
South Coast Air Quality Management District. Example 1 of SCAQMD "Fact Sheet' for Applying
CaIEEMod to Localized Significance Thresholds. http://www.aqmd.gov/docs/default-
source/ceqa/handbook/localized-significance-thresholds/caleemod-
guidance.pdf?sfvrsn=2. Accessed July 2023.
South Coast Air Quality Management District. Fina12022Air Quality Management Plan. December
2, 2022. http://www.agmd.gov/docs/default-source/clean-air-plans/air-quality-
management-plans/2022-air-quality-management-plan. Accessed July 2025.
South Coast Air Quality Management District. Final Localized Significance Threshold (LST)
Methodology. July 2008. Accessed March 2025. http://www.aqmd.gov/docs/default-
source/ceqa/handbook/localized-significance-thresholds/final-lst-methodology-
document.pdf?sfvrsn=2.
Meridian Consultants 4.0-3 Addendum to the SilverRock Resort Project
September 2025
4.0—References
Southern California Association of Governments. "Final Connect SoCal 2024 Demographics and
Growth Forecast." Accessed July 2025. https://scag.ca.gov/connect-socal.
State Water Resources Control Board. "GeoTracker." Accessed July 2025.
https://geotracker.waterboards.ca.gov/.
Meridian Consultants 4.0-4 Addendum to the SilverRock Resort Project
September 2025
5.0 MITIGATION MONITORING PROGRAM
CITY OF LA QUINTA
MITIGATION MONITORING PROGRAM
PROJECT NAME: The Ranch/SilverRock Resort SCH No.: 1999081020 APPROVAL DATES: May 15th, 2002/July 18th, 2006/July 15, 2014
The Mitigation Monitoring Program (MMP) has been prepared in conformance with Section 21081.6 of the California Environmental Quality Act. It is the
intent of this program to (1) verify satisfaction of the required mitigation measures; (2) provide a methodology to document implementation of the required
mitigation; (3) provide a record of the Monitoring Program; (4) identify monitoring responsibility; (5) establish administrative procedures for the clearance of
mitigation measures; (6) establish the frequency and duration of monitoring; and (7) utilize existing review processes wherever feasible.
The following environmental mitigation measures were incorporated into the approval for this project in order to mitigate potentially significant environmental
impacts to a level of insignificance. A completed and signed checklist for each mitigation measure indicates that this mitigation measure has been complied
with and implemented and fulfills the City of La Quinta's monitoring requirements with respect to Assembly Bill 3180 (Public Resources Code Section 21081.6).
Geology The soils at
MM GEO-1 Receipt of site specific City of La Prior to the
the site have
Prior to the design and construction of geotechnical/ Engineering Quinta issuance of any
the potential
any structural improvements, a plans for the Project grading permits
for hydro
comprehensive design -level
consolidation
geotechnical evaluation shall be
with the
prepared that includes subsurface
addition of
exploration and laboratory testing.
water
Recommendations for
grading/earthwork, surface and
subsurface drainage, foundations,
pavement structural sections, and
other pertinent geotechnical design
considerations shall be formulated and
implemented based on the findings of
this evaluation.
Meridian Consultants 5.0-1 Addendum to the SilverRock Resort Project
Error! Reference source not found. September 2025
5.0—Mitigation Monitoring Program
The Project
MM GEO-2
Review of construction plans
City of La
Prior to the
Site would be
All buildings planned as a result of the
Quinta
issuance of any
subjectto
Proposed Project shall be constructed
building permits
ground
in conformance with the Uniform
shaking
Building Code, as adopted by the City of
during a
La Quinta.
seismic
event.
Water The project
MM W-2
Field inspection
City of La
Ongoing during
would use
During construction activities, water
Quinta
construction
potable water
trucks are to acquire water from non -
for dust
potable water sources, such as reclaimed
suppression
water and/or canal water.
instead of
reclaimed
water
Cumulative
MM W-1
Review of landscape and
City of La
Prior to the
use of potable
At such time that non -potable water
project plans to identify the
Quinta and
issuance of
water for
sources become available to the
ability to connect to non-
Coachella
building
irrigation
project site, the project shall connect to
potable water sources in the
Valley
permits.
would
this resource and utilize the non-
future
Water
incrementally
potable water for irrigation purposes.
District
contribute to
the demand
MM W-4
Review of landscape and
City of La
Prior to the
on water
Drought tolerant landscaping shall be
project plans
Quinta
issuance of
supplies
utilized as a means of reducing water
building permits
consumption.
The project
MM W-3
Receipt of site hydrology
City of La
Prior to the
This
will result in
A hydrology master plan shall be
master plan and study for the
Quinta
issuance of
mitigation
changes to
prepared for the Project Specific Plan.
Project
grading permits
measure
absorption
Further, a hydrology study shall be
has
rates,
prepared to support the hydrology
already
Meridian Consultants
5.0-2
Addendum to the
SilverRock Resort Project
September 2025
drainage
master plan. This study shall
patterns, or
demonstrate that the project would
the rate and
construct storm drainage and
amount of
hydrologic improvements, such as on -
surface runoff
site stormwater retention basins, that
conform to the City's master hydrology
and storm drain improvement program
as well as implement regional and local
requirements, policies, and programs.
MM W-5
Prior to the initiation of any
construction activity on the project site,
a Notice of Intent (NOI), Storm Water
Pollution Prevention Plan (SWPPP), and
Monitoring Plan will be filed with the
RWQCB under the general NPDES
construction permit. The SWPPP shall
include Best Management Practices
(BMPs) in compliance with the NPDES
program requirements.
MM W-6
Any existing groundwater wells located
on the site that are no longer in use
shall be abandoned in accordance with
federal, State, and local laws and
regulations prior to the issuance of
building permits.
5.0—Mitigation Monitoring Program
Provide NOI and verification Regional Prior to the
that it was sent to RWQCB Water issuance of any
Quality grading permits
Control
Board
Review of construction plans City of La Prior to the
Quinta issuance of any
grading permits
been
implement
ed. No
further
action is
required.
This
mitigation
measure
has
already
been
implement
ed.
No further
action is
required.
Meridian Consultants 5.0-3 Addendum to the SilverRock Resort Project
September 2025
5.0—Mitigation Monitoring Program
MM W-8
Review of site, storm
City of La
Prior to the
This
Design of new roads, golf courses, man-
drainage and landscape
Quinta
issuance of
mitigation
made ponds, common landscape
plans
grading permits
measure
areas, storm water basins, and other
has
facilities shall incorporate proper
already
engineering controls to channel storm
been
and irrigation runoff into
implement
detention/retention facilities that are
ed.
sized to plans accommodate design
No further
year storms and that incorporate
action is
filtration systems or other devices to
required.
reduce the potential for herbicides,
pesticides, fertilizers, and other
contaminants to percolate to
groundwater or surface water runoff.
Water from
MM W-7
Receipt of Golf Course
City of La
Prior to the
golf course
Prior to operation of the golf course, the
Management Plan
Quinta
issuance of
operation
golf course operator shall prepare a
operation permit
would contain
Golf Course Management Plan that
pollutants
includes an irrigation plan, water usage
that impact
plan, and chemical management plan
groundwater
in order to reduce, to the extent
quality
feasible, golf course irrigation runoff
and percolation into the groundwater
basin.
Air Quality Construction
MM AQ-1
Review of construction
City of La
Prior to issuance
activity
Construction equipment shall be
management plan
Quinta
of grading
generates
phased and operated in a manner to
permit
vehicular air
ensure the lowest construction -related
quality
pollutant emission levels practical, and
pollutants
shall require the use of water trucks,
temporary irrigation systems and other
Meridian Consultants
5.0-4
Addendum to the
SilverRock Resort Project
September 2025
measures which will limit fugitive dust
emissions during site disturbance and
construction.
MM AQ-3 Review of construction
A PMlo Management Plan for management plan
construction operations shall be
submitted prior to the issuance of
grading permits. The plan shall include
dust management controls such as:
• Water site and equipment when
appropriate
• Spread soil binders on site,
unpaved roads, and parking areas
• Re-establish ground cover on
construction site through seeding
and watering
• Pave construction roads, where
appropriate
• Operate street -sweepers on paved
roads adjacent to site when
appropriate
• The following measures shall be
implemented to reduce
construction related traffic
congestion:
• Configure construction parkingto
minimize traffic disturbance
• Minimize obstruction of through -
traffic lanes
• Provide flag person toensure safety
at construction sites, as necessary
5.0—Mitigation Monitoring Program
City of La Prior to issuance
Quinta of building
permit
Meridian Consultants 5.0-5 Addendum to the SilverRock Resort Project
September 2025
5.0—Mitigation Monitoring Program
• Schedule operations affecting
roadways for off- peak traffic hours
• Provide rideshare incentives to
construction personnel
MM AQ-2 Review of dust control plan City of La Prior to issuance
Air quality control measures identified Quinta of building
in the Coachella Valley PM10 State permit
Implementation Plan shall be
implemented.
M M AQ-13
To reduce VOC emissions associated with
architectural coatings, water -based or
low-VOC coatings shall be used and
applied with spray equipment with high
transfer efficiency and/or the need for
paints and solvents should be reduced by
using pre -coated building materials or
naturally colored building materials.
Operation of
MM AQ-4
the proposed
Timeshare and golf facility construction
project would
shall utilize solar or low emission water
result in
heaters to reduce natural gas
increased air
consumption and emissions.
pollutant
emissions.
MM AQ-5
Timeshare and golf facility construction
shall utilize built-in energy -efficient
appliances to reduce energy
consumption and emissions.
Review of construction City of La Prior to issuance
management plan Quinta of building
permit
Review of construction and City of La
site plans Quinta
Prior to issuance
of occupancy
permit
or
Prior to issuance
of grading
permit
Meridian Consultants 5.0-6 Addendum to the SilverRock Resort Project
September 2025
5.0—Mitigation Monitoring Program
M M AQ-6
Shade trees shall be provided in close
proximity to Timeshare, hotel and golf
facility structures to reduce building
heating/cooling needs.
M M AQ-7
Timeshare and golf facility construction
shall utilize energy -efficient and
automated controls for air conditioners to
reduce energy consumption and
emissions.
M M AQ-8
Timeshare and golf facility construction
shall be constructed using special
sunlight -filtering window coatings or
double -paned windows to reduce thermal
gain or loss.
M M AQ-9
Timeshare and golf facility construction
shall utilize automatic lighting on/off
controls and energy -efficient lighting
(including parking areas) to reduce
electricity consumption and associated
emissions.
M M AQ-10
Timeshare and golf facility construction
shall use light- colored roofing materials
in residential construction as opposed to
dark roofing materials.
Meridian Consultants 5.0-7 Addendum to the SilverRock Resort Project
September 2025
M M AQ-11
Bus stops shall be positioned at locations
on and adjacent to the site to be
determined in coordination with the bus
transit service provider that will serve the
project area. Bus stops should be
generally located'/a mile walking distance
from Timeshare units.
M M AQ-12
The golf course shall design on -site
circulation plans for clubhouse parking to
reduce vehicle queuing.
Transportat Increases in
MMTRANS-1
ion and local roadway
A traffic signal shall be installed at the
Circulation volumes
Project entrance and Avenue 52, the
would
Project entrance and Jefferson Street and
incrementally
at the intersection of Avenue 54 and
decrease
Jefferson Street when and if they are
intersection
warranted. The developer of the site shall
LOS
be responsible for payment of a fair share
of the cost of installing these signals.
Biological During MM BIO-10
Resources construction Efforts shall be made to ensure that all
and
pesticides, fungicides, herbicides and
landscaping
fertilizers used during the construction
activities,
and operation of the Project Site will not
impacts to
be harmful to wildlife.
common
wildlife would
occur
5.0—Mitigation Monitoring Program
Warrant study City of La Ongoing
Quinta
Review of Construction and City of La
Landscaping plan Quinta
Prior to the
issuance of
grading permits
Meridian Consultants 5.0-8 Addendum to the SilverRock Resort Project
September 2025
5.0—Mitigation Monitoring Program
During
MM BIO-5
Review of Construction plan City of La Prior to the
construction
A construction plan shall be prepared and
Quinta issuance of
and
demonstrate, to the extent practicable,
grading permits
operation,
construction activities that emit
there is a
excessive noise will be avoided adjacent
potential
to the hillside. In addition, during grading
impact to
and construction activities any blasting or
Peninsular
pile -driving near the hillside will not occur
bighorn
during the period from Jan. 1 through June
sheep and
30th.
other wildlife
Potential
MM BIO-8
Review of project landscape City of La Prior to issuance
impact to
The landscape plan shall include only
plan Quinta of building
Peninsular
plants that are non -toxic to wildlife. All
permit
bighorn
exotic plans such as tamarisk and
sheep from
fountain grass are prohibited. Existing
increased
trees may remain.
human
presence on
Project Site
MM BIO-1
Review of construction, City of La Prior to the
A mountain toe -of -slope buffer/mitigation
landscape and site plan Quinta issuance of
concept plan has been prepared to
(Agency shall, to the extent grading permits
protect peninsular big horn sheep, and
practical, widen the
other wildlife, from entering the non-
narrowest points of the
landscape and mountainous portion of
buffer areas to minimize the
the site proposed for development. This
impacts on the hillside)
concept plan illustrates a continuous
buffer to the toe -of -slope in areas where
development could occur adjacent to the
mountain edge. The concept plan
delineates the location, acreage and
This
mitigation
measure
has
already
been
implement
ed.
No further
action is
required.
Meridian Consultants 5.0-9 Addendum to the SilverRock Resort Project
September 2025
5.0—Mitigation Monitoring Program
native plant species envisioned for the
mitigation area.
This plan shall be incorporated into the
project design and shall be subject to
review by the City prior to issuance of
grading permits.
A copy of this mountain toe -of -slope
buffer/mitigation concept plan is
available for review at the City of La
Quinta Community Development
Department.
MM BIO-2
The Agency shall guarantee City of La Ongoing
This
If Bighorn Sheep enter onto the Project
to pay the design and Quinta
mitigation
Site, an 8-foot fence (or the functional
construction costs for the
measure
equivalent) between the development
fencing, and that if the
has
and the hillside shall be constructed. The
property is transferred, it
already
gaps should be 11 centimeters (4.3
shall require that the
been
inches) or less. If determined necessary,
subsequent owner bond or
implement
the City shall construct temporary
posts sufficient security for
ed.
fencing while permanent fencing is
the completion of the fence
No further
constructed. The fence shall not contain
should it arise in the future.
action is
action
gaps in which Bighorn Sheep can be
required.
entangled. If the Agency transfers or
disposes of any of the property adjacent
to the hillside, the Agency shall reserve an
easement sufficient for the construction
of fencing if needed in the future.
Meridian Consultants 5.0-1 0 Addendum to the SilverRock Resort Project
September 2025
There is a
potential
impact from
nighttime
light on
wildlife
There is a
potential
impact from
glare and
exterior
lighting on
wildlife
5.0—Mitigation Monitoring Program
MM BI0-3 Review of landscape and City of La Ongoing
Dogs shall not be permitted to be loose signage plan Quinta
within the project area, and shall be kept
away from the hillside areas through
appropriate signage and fencing, where
applicable.
MM BI0-4
Review of site and signage
City of La
Prior to issuance
This
Access into the hillside area from the site
plan
Quinta,
of occupancy
mitigation
will be discouraged through the use of
CDFG,
permit
measure
signs or barricades, if necessary, unless
USFWS
has
the access is provided as part of a trail
already
system that is approved by the USFWS
been
and CDFG.
implement
ed.
No further
action is
required.
MM BI0-6
Review of site and
City of La
Prior to the
The final design of the project shall
construction plan
Quinta
issuance of
ensure that road and driveways are
grading permit
designed to minimize headlight shine
from vehicles onto the hillside.
MM BI0-7
Review of site and
City of La
Prior to the
In all areas adjacent to the hillsides, non-
construction plan
Quinta
issuance of
glare glass shall be used in new
building permit
construction. Exterior building lights shall
not shine on the hillside. Exterior lighting
shall be kept at the safest possible
Meridian Consultants 5.0-1 1 Addendum to the SilverRock Resort Project
September 2025
minimum intensity and aimed away from
the hillside.
MM BIO-9
All swimming pools located on the Project
Site shall be fenced pursuant to City
regulations.
5.0—Mitigation Monitoring Program
Review of construction plan City of La Prior to the
Quinta issuance of
grading permit
Potential
MM BIO-11
Verification of receipt of
City of La
Prior to the
This
impact to
Prior to any construction or site
financial security instrument
Quinta,
issuance of
mitigation
mesquite
preparation activities that would impact
and copy of the MOU
CDFG
grading permit
measure
hummock
the 3.4 acres of mesquite hummock, the
has
habitat
agency or project developer shall enter
already
into a Memorandum Of Understanding
been
(MOU) with CDFG and an appropriate
implement
non-profit organization whose purpose is
ed.
to acquire and manage land for the
No further
purpose of protecting special status
action is
plants and wildlife. This MOU shall
required.
provide the organization chosen the
financial resources necessary to
purchase and manage 3.4 acres of
mesquite hummock in the Willow Hole
area or in another area where the habitat
is contiguous and large preserves already
protect much of this habitat type. The
exact location and cost shall be
determined through consultation with
CDFG and the selected organization.
Potential
MM BIO-12
Receipt of required permits
City of La
Prior to the
This
impact to
Prior to the commencement of on -site
Quinta,
issuance of
mitigation
areas under
grading, a 404 permit shall be obtained, if
CDFG,ACO
grading permit
measure
the
legally required, for alteration of areas
E
has
Meridian Consultants
5.0-1 2
Addendum to the
SilverRock Resort Project
September 2025
Hazards
Noise
jurisdiction of under the ACOE jurisdiction. In addition,
the ACOE and if development activities are to take place
the CDFG within streambeds or drainages under the
jurisdiction of the CDFG, a streambed
alteration agreement shall first be
obtained, if legally required.
Exposure to
MM HAZ-1
asbestos is a
Prior to the demolition or renovation of
significant
the on -site single family residence,
impact
asbestos containing materials (ACM)
shall be removed in accordance with
current regulatory guidelines.
Construction
MM N-1
noise would
Between May 1 and September 30, all
impact local
construction activities on the project site
residents and
shall only occur between the hours of
sensitive
6:00 AM and 7:00 PM Monday through
receptors
Friday, and from 8:00 AM to 5:00 PM on
Saturday, and shall be prohibited on
Sundays and public holidays. Between
October 1 and April30, all construction
activity on the project site shall only
occur between the hours of 7:00 AM and
5:30 PM Monday through Friday, and from
8:00 AM to 5:00 PM on Saturday, and shall
5.0—Mitigation Monitoring Program
already
been
implement
ed.
No further
action is
required.
Proof that a qualified City of La Prior to the
This
demolition team has been Quinta issuance of
mitigation
retained demolition
measure
permit
has
already
been
implement
ed.
No further
action is
required.
Review of construction plans City of La
Quinta
Prior to the
issuance of
grading permit
Meridian Consultants 5.0-1 3 Addendum to the SilverRock Resort Project
September 2025
be prohibited on Sundays and public
holiday. All operational activities of the
Project shall also be subject to the Noise
Ordinance of the City as well.
MM N-2
All construction equipment operating in
the planning area shall be fitted with well -
maintained functional mufflers to limit
noise emissions.
MM N-3
To the greatest extent feasible, earth
moving and hauling routes shall be
located away from existing residences.
MM N-4
The design, selection and placement of
the mechanical equipment for various
buildings shall include consideration of
the potential noise impact they may have
on uses within the development site.
MM N-5
Silencers and/or barriers shall be
provided where necessary at outdoor
equipment, such as cooling towers, air
cooled condensers and refrigeration
compressors/condenser units, and at the
air intake and discharge openings for
building ventilation systems.
5.0—Mitigation Monitoring Program
Review of construction plans City of La
Quinta
Review of construction plans City of La
Quinta
Review of construction plans City of La
Quinta
Review of construction plans City of La
Quinta
Prior to the
issuance of
grading permit,
ongoing
throughout
construction
Prior to the
issuance of
grading permit
Prior to the
issuance of
building permit
Prior to the
issuance of
building permit
Meridian Consultants 5.0-14 Addendum to the SilverRock Resort Project
September 2025
Public The proposed
MM PUB-1
Services project would
The Riverside County Fire Department, in
incrementally
its review of new development proposals,
increase
shall evaluate project plans and the
demand for
Department's ability to provide proper fire
service on the
protection. This review shall include, but
Riverside
shall not be limited to, internal
County Fire
circulation, project directories, street
Department
names, and numbering systems. New
developments shall complywith all City
and Fire Department standards.
The proposed
MM PUB-2
project would
The Riverside County Sheriff's
incrementally
Department shall review new
increase
development proposals in order to
demand for
evaluate project plans and the
service on the
Department's ability to provide adequate
Riverside
police protection. This review should
County
include, but not be limited to internal
Sheriff
circulation, project directories, street
Department
names, and numbering systems. New
developments shall comply with all
established City and Sheriff standards.
Utilities The project
and Service would result
Systems in an
incremental
increase in
electrical
demand
151u1IAW
The most efficient furnaces, water
heaters, pool heaters and other
equipment that use natural gas shall be
used in project construction. The use of
kitchen appliances that use natural gas
and alternative, renewable energy
sources, including solar and wind turbine
5.0—Mitigation Monitoring Program
Review of site and landscape Riverside Prior to the
plan County Fire issuance of
Department grading permit
and City of
La Quinta
Review of site and landscape
plan
Riverside Prior to the
County issuance of
Sheriff grading permit
Department
and City of
La Quinta
Review of construction plan City of La
Quinta
Prior to the
issuance of
building permits
Meridian Consultants 5.0-1 5 Addendum to the SilverRock Resort Project
September 2025
The use of
septic
systems in
the City could
result in
potential
impacts
5.0—Mitigation Monitoring Program
technologies shall also be used to the
greatest extent feasible.
MM UTIL-2
Review of construction plan City of La
Title 24 of the California Administrative
Quinta
Code, which addresses energy
conservation in all proposed uses shall
be strictly enforced in project design and
construction.
MM UTIL-3
Review of construction plan Coachella
All planned uses shall be connected to
Valley
the city-wide sewer system.
Water
District
MM UTIL-7
Any existing or historic septic systems
located on the site shall be abandoned in
accordance with Federal, State, and local
laws and regulations prior to the issuance
of building permits.
Review of construction plan
Prior to the
issuance of
building permits
Prior to issuance
of grading
permit
Coachella Prior to issuance
Valley of grading
Water permit
District and
City of La
Quinta
This
mitigation
measure
has
already
been
implement
ed.
No further
action is
required.
This
mitigation
measure
has
already
been
implement
ed.
No further
action is
required.
Meridian Consultants 5.0-16 Addendum to the SilverRock Resort Project
September 2025
The
incremental
increase in
solid waste
generation
could result in
potential
impacts
The
incremental
demand from
the project on
utility
systems
could result in
potential
impacts
Aesthetics The project
area is
adjacent to a
scenic area.
Development
would alter
the aesthetic
nature of the
area
Meridian Consultants
MM UTIL-4
A recycling program shall be developed
for all proposed uses. Recycling
provisions for commercial and business
establishments should include separate
recycling bins. Items to be recycled at
commercial establishments may include
white paper, computer legal paper,
cardboard, glass and aluminum cans.
5.0—Mitigation Monitoring Program
Receipt of recycling program City of La Prior to the
Quinta issuance of
occupancy
permit
MM UTIL-5 Verification that a qualified City of La Prior to the
Professional landscaping services from landscaping service has Quinta issuance of
companies which compost green waste been retained occupancy
shall be utilized. permit
MM UTIL-6 Verification of receipt of City of La Prior to the
The Projects fair share of public utilities, financial security Quinta issuance of
infrastructure and improvements required instrument. grading permit
to properly service the proposed uses
shall be determined through consultation
with the City Department of Public Works
and paid prior to the issuance of grading
permits.
MM AES-1 Review of landscape and City of La Prior to the
Landscape designs and materials that design plans Quinta issuance of
complement the native desert grading permit
environment shall be utilized in project
design and construction.
5.0-1 7 Addendum to the SilverRock Resort Project
September 2025
5.0—Mitigation Monitoring Program
MM AES-2 Review of design and site
City of La
Prior to the
Overhead utility lines shall be plans
Quinta
issuance of
undergrounded to the greatest extent
Public
grading permit
possible through the establishment of an
Works and
undergrounding program and guidelines
City
subject to the review of the City Engineer
Engineer
and Public Works Department.
MM AES-4 Review of design plan
City of La
Prior to the
Signage shall be limited to the locations,
Quinta
issuance of
sizes, and maintenance requirements
grading permit
necessary to provide functional
identification.
MM AES-5 Review of landscape and City of La Prior to the
Safe, convenient vehicular and design plans Quinta issuance of
pedestrian circulation, screened outdoor building permit
storage/loading and other unsightly
areas, protected and enhanced outdoor
seating areas, appropriate lighting levels,
limited signage, and landscaping designs
that preserve and enhance visual
resources shall be included in the design
of any commercial area on the Project
Site.
MM AES-6 Review of landscape and City of La Prior to the
Development proposed along designated design plans Quinta issuance of
scenic highways, roadways and corridors grading permit
shall be reviewed for compatibility with
the natural and built environments to
assure maximum viewshed protection
and pedestrian and vehicular activity.
Meridian Consultants 5.0-1 8 Addendum to the SilverRock Resort Project
September 2025
5.0—Mitigation Monitoring Program
MM AES-7 Review of landscape and City of La Prior to the
All grading and development proposed design plans Quinta issuance of
within scenic viewsheds, shall be grading permit
regulated to minimize adverse impacts to
these viewsheds. All grading,
development and landscaping plans shall
be submitted to the City for review and
approval prior to the issuance of grading
permits.
The project
MM AES-3
Review of design and site
City of La
Prior to the
would
Outdoor lighting shall be limited to the
plans
Quinta,
issuance of
introduce
minimum height, number of fixtures, and
Riverside
building permit
new sources
intensity needed to provide sufficient
County
of light and
security and identification in each
Sheriff
glare that
development, making every reasonable
Department
would alter
effort to protect the community's night
the existing
skies.
nighttime
environment
Cultural There is
MM CUL-1
Verification that a qualified
City of La
Prior to issuance
Resources potential for
During any ground altering activities
historical consultant has
Quinta
of grading
discovery of
associated with project grading or
been retained
permit
unidentified
construction, including demolition of
subsurface
existing modern structures and facilities,
cultural
the project area shall be monitored by a
resources
qualified archaeological monitor. The
during future
monitor shall have the authority to halt
ground
any activities impacting potentially
altering
significant cultural resources until the
activities
resources can be evaluated for
significance and cleared or mitigated. The
monitoring program shall also include
Meridian Consultants
5.0-19
Addendum to the SilverRock Resort Project
September 2025
5.0—Mitigation Monitoring Program
Meridian Consultants 5.0-20 Addendum to the SilverRock Resort Project
September 2025
Air Quality and Greenhouse Gas
Emissions Outputs
n-I
Proposed Project Construction
(Planning Areas 1,3,4,5)
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
SilverRock Resort Proposed Project Construction Phase 1 (Planning
Areas 1,3,4,5) Custom Report
Table of Contents
1. Basic Project Information
1.1. Basic Project Information
1.2. Land Use Types
1.3. User -Selected Emission Reduction Measures by Emissions Sector
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
2.2. Construction Emissions by Year, Unmitigated
3. Construction Emissions Details
3.1. Demolition (2026) - Unmitigated
3.3. Grading (2026) - Unmitigated
3.5. Grading (2027) - Unmitigated
3.7. Building Construction (2027) - Unmitigated
3.9. Building Construction (2028) - Unmitigated
3.11. Building Construction (2029) - Unmitigated
1 / 28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
3.13. Paving (2029) - Unmitigated
3.15. Architectural Coating (2029) - Unmitigated
4. Operations Emissions Details
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
5. Activity Data
5.1. Construction Schedule
5.2. Off -Road Equipment
5.2.1. Unmitigated
5.3. Construction Vehicles
5.3.1. Unmitigated
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
5.5. Architectural Coatings
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
2/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
5.6.2. Construction Earthmoving Control Strategies
5.7. Construction Paving
5.8. Construction Electricity Consumption and Emissions Factors
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
5.18.2.1. Unmitigated
8. User Changes to Default Data
3/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
1. Basic Project Information
1.1. Basic Project Information
Project Name
Construction Start Date
Lead Agency
Land Use Scale
Analysis Level for Defaults
Windspeed (m/s)
Precipitation (days)
Location
County
City
Air District
Air Basin
TAZ
EDFZ
Electric Utility
Gas Utility
App Version
1.2. Land Use Types
Hotel 154
Quality Restaurant 7.50
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5)
11 / 1 /2026
Project/site
County
3.00
7.60
33.672095298053605,-116.2796035818008
Riverside -Salton Sea
La Quinta
South Coast AQMD
Salton Sea
5651
19
Imperial Irrigation District
Southern California Gas
2022.1.1.29
Room 5.13 250,000
1000sgft 0.17 7,500
25,000 — — —
750 — — —
4/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
General Office 55.0 1000sgft 1.26 55,000 5,500
Building
General Office 17.0 1000sgft 0.39 17,000 1,700
Building
Golf Course 9.00 Hole 62.8 0.00 0.00
1.3. User -Selected Emission Reduction Measures by Emissions Sector
No measures selected
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily,
-
-
-
-
-
-
-
- -
Summer
(Max)
Unmit.
51.1
51.1
11.6
24.5
0.04
0.36
2.18
2.54
0.33
0.53
0.86 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Unmit.
52.0
51.8
29.5
28.6
0.08
1.12
8.41
9.40
1.03
1.50
2.42 -
Average
-
Daily
(Max)
Unmit.
8.65
8.62
8.94
15.6
0.03
0.29
1.57
1.86
0.27
0.40
0.66 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
(Max)
Unmit.
1.58
1.57
1.63
2.84
< 0.005
0.05
0.29
0.34
0.05
0.07
0.12 -
Exceeds
-
-
-
-
-
-
-
-
-
-
- -
(Daily
Max)
1 IX
5,907 5,907 0.14 0.30 9.57 6,009
10,991 10,991 0.27 1.19 0.42 11,352
4,148
4,148
0.10
0.21
2.79
4,214
687
687
0.02
0.04
0.46
698
5/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Threshol -
75.0
100
550
150
- -
150
-
-
55.0 -
d
Unmit. -
No
No
No
No
- -
No
-
-
No -
Exceeds -
-
-
-
-
- -
-
-
-
- -
(Average
Daily)
Threshol -
75.0
100
550
150
- -
150
-
-
55.0 -
d
Unmit. -
No
No
No
No
- -
No
-
-
No -
2.2. Construction Emissions by
Year,
Unmitigated
Criteria Pollutants (lb/day for
daily, ton/yr
for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily -
Summer
(Max)
2027 1.94
1.66
11.6
24.5
0.04
0.36 2.18
2.54
0.33
0.53
0.86 -
2028 1.86
1.58
11.0
23.7
0.04
0.32 2.18
2.50
0.30
0.53
0.83 -
2029 51.1
51.1
0.88
2.99
< 0.005 0.01 0.34
0.36
0.01
0.08
0.09 -
Daily - -
-
-
-
-
- -
-
-
-
- -
Winter
(Max)
2026 3.71
3.12
29.5
28.6
0.08
1.12 8.41
9.40
1.03
1.50
2.42 -
2027 3.59
3.02
25.7
28.2
0.06
1.04 2.65
3.70
0.96
1.01
1.97 -
2028 1.71
1.49
11.2
19.3
0.04
0.32 2.18
2.50
0.30
0.53
0.83 -
2029 52.0
51.8
10.7
18.9
0.04
0.30 2.18
2.48
0.28
0.53
0.81 -
Average
-
- -
Daily
2026 0.38
0.32
3.37
2.81
0.01
0.12 0.78
0.90
0.11
0.16
0.27 -
2027 1.41
1.19
8.94
15.6
0.03
0.29 1.57
1.86
0.27
0.40
0.66 -
2028 1.24
1.08
7.94
14.9
0.03
0.23 1.55
1.78
0.22
0.38
0.59 -
6/28
5,907
5,907
0.14
0.30
9.57
6,009
5,833
5,833
0.14
0.30
8.71
5,934
494
494
0.01
0.01
0.89
499
10,991
10,991
0.27
1.19
0.42
11,352
6,841
6,841
0.27
0.30
0.25
6,866
5,563
5,563
0.14
0.30
0.23
5,656
5,493
5,493
0.14
0.29
0.20
5,583
1,146
1,146
0.03
0.10
0.58
1,177
4,148
4,148
0.10
0.20
2.79
4,214
4,061
4,061
0.10
0.21
2.70
4,130
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
2029
8.65
8.62
1.77
3.40
0.01
0.05
0.33
0.38
0.05
0.08
0.13 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
2026
0.07
0.06
0.62
0.51
< 0.005
0.02
0.14
0.17
0.02
0.03
0.05 -
2027
0.26
0.22
1.63
2.84
< 0.005
0.05
0.29
0.34
0.05
0.07
0.12 -
2028
0.23
0.20
1.45
2.71
< 0.005
0.04
0.28
0.33
0.04
0.07
0.11 -
2029
1.58
1.57
0.32
0.62
< 0.005
0.01
0.06
0.07
0.01
0.01
0.02 -
3. Construction Emissions Details
3.1. Demolition (2026) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily, -
- - - - - - -
- - - -
Summer
(Max)
Daily,
- - - - - -
- - - -
Winter
(Max)
Off-Roa 2.72
2.29 20.7 19.0 0.03 0.84 - 0.84
0.78 - 0.78 -
d
Equipm
ent
Demoliti -
- - - - - 6.21 6.21
- 0.94 0.94 -
on
Onsite 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 -
truck
Average -
- - - - - - -
- - - -
Daily
Off-Roa 0.22
0.19 1.70 1.56 < 0.005 0.07 - 0.07
0.06 - 0.06 -
d
Equipm
ent
837
837
0.02
0.04
0.48
849
190
190
< 0.005
0.02
0.10
195
687
687
0.02
0.03
0.46
698
672
672
0.02
0.04
0.45
684
139
139
< 0.005
0.01
0.08
141
3,427 3,427 0.14 0.03 - 3,438
0.00
0.00
0.00
0.00 0.00
0.00
282
282
0.01
< 0.005 -
283
7/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Demoliti
-
-
-
-
-
-
0.51
0.51
-
0.08
0.08 -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.04
0.03
0.31
0.29
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Demoliti
-
-
-
-
-
-
0.09
0.09
-
0.01
0.01 -
on
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Daily,
Winter
(Max)
Worker
0.06
0.06
0.08
0.75
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.22
0.14
8.79
1.95
0.05
0.15
2.00
2.15
0.15
0.51
0.66 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
< 0.005
0.01
0.08
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.02
0.01
0.71
0.16
< 0.005
0.01
0.16
0.18
0.01
0.04
0.05 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.01
0.00
0.00
< 0.005
< 0.005
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
< 0.005
< 0.005
0.13
0.03
< 0.005
< 0.005
0.03
0.03
< 0.005
0.01
0.01 -
0.00 0.00 0.00 0.00 0.00 0.00
46.6 46.6 < 0.005 < 0.005 - 46.8
186
186
< 0.005
0.01
0.02
188
0.00
0.00
0.00
0.00
0.00
0.00
7,379
7,379
0.07
1.16
0.40
7,726
16.3
16.3
< 0.005
< 0.005
0.02
16.5
0.00
0.00
0.00
0.00
0.00
0.00
606
606
0.01
0.10
0.55
635
2.70
2.70
< 0.005
< 0.005
< 0.005
2.73
0.00
0.00
0.00
0.00
0.00
0.00
100
100
< 0.005
0.02
0.09
105
8/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
3.3. Grading (2026) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Summer
(Max)
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Winter
(Max)
Off-Roa 3.62
3.04
27.2
27.6
0.06
1.12
-
1.12
1.03
-
1.03 -
6,599
6,599
0.27
0.05 -
6,621
d
Equipm
ent
Dust -
-
-
-
-
-
2.39
2.39
-
0.95
0.95 -
-
-
-
- -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Daily
Off-Roa 0.13
0.11
0.96
0.97
< 0.005
0.04
-
0.04
0.04
-
0.04 -
232
232
0.01
< 0.005 -
233
d
Equipm
ent
Dust -
-
-
-
-
-
0.08
0.08
-
0.03
0.03 -
-
-
-
- -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Annual
9/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Off-Roa
0.02
0.02
0.18
0.18
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Dust
-
-
-
-
-
-
0.02
0.02
-
0.01
0.01 -
From
Material
Movement
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.08
0.07
0.10
1.00
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
< 0.005
< 0.005
< 0.005
0.04
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
Worker
< 0.005
< 0.005
< 0.005
0.01
0.00
0.00
< 0.005
< 0.005
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.5. Grading (2027) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
10/28
38.5 38.5 < 0.005 < 0.005 - 38.6
0.00 0.00 0.00 0.00 0.00 0.00
248
248
< 0.005
0.01
0.02
251
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
9.32
9.32
< 0.005
< 0.005
0.01
9.44
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.54
1.54
< 0.005
< 0.005
< 0.005
1.56
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Onsite
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Summer
(Max)
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Winter
(Max)
Off-Roa 3.51
2.95
25.6
27.3
0.06
1.04
-
1.04
0.96
-
0.96 -
6,598
6,598
0.27
0.05 -
6,621
d
Equipm
ent
Dust -
-
-
-
-
-
2.39
2.39
-
0.95
0.95 -
-
-
-
- -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Daily
Off-Roa 0.15
0.13
1.10
1.17
< 0.005
0.04
-
0.04
0.04
-
0.04 -
284
284
0.01
< 0.005 -
285
d
Equipm
ent
Dust -
-
-
-
-
-
0.10
0.10
-
0.04
0.04 -
-
-
-
- -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Annual
Off-Roa 0.03
0.02
0.20
0.21
< 0.005
0.01
-
0.01
0.01
-
0.01 -
47.0
47.0
< 0.005
< 0.005 -
47.2
d
Equipm
ent
11 / 28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Dust - - - - - - 0.02
0.02
-
0.01
0.01 -
-
-
-
-
-
From
Material
Movement
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Daily, - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Daily, - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Winter
(Max)
Worker 0.08 0.07 0.09 0.94 0.00 0.00 0.26
0.26
0.00
0.06
0.06 -
243
243
< 0.005
0.01
0.02
246
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
Daily
Worker < 0.005 < 0.005 < 0.005 0.05 0.00 0.00 0.01
0.01
0.00
< 0.005
< 0.005 -
11.2
11.2
< 0.005
< 0.005
0.02
11.3
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual- - - - - - -
-
-
-
- -
-
-
-
-
-
-
Worker < 0.005 < 0.005 < 0.005 0.01 0.00 0.00 < 0.005
< 0.005
0.00
< 0.005
< 0.005 -
1.85
1.85
< 0.005
< 0.005
< 0.005
1.87
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.7. Building Construction (2027) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
12/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Off-Roa
1.23
1.03
9.39
12.9
0.02
0.34
-
0.34
0.31
-
0.31 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
1.23
1.03
9.39
12.9
0.02
0.34
-
0.34
0.31
-
0.31 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.83
0.69
6.30
8.68
0.02
0.23
-
0.23
0.21
-
0.21 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.15
0.13
1.15
1.58
< 0.005
0.04
-
0.04
0.04
-
0.04 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,609
1,609
0.07
0.01
- 1,615
0.00
0.00
0.00
0.00 0.00
0.00
266
266
0.01
< 0.005 -
267
0.00 0.00 0.00 0.00 0.00 0.00
13/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Worker
0.63
0.56
0.57
10.8
0.00
0.00
1.71
1.71
0.00
0.40
0.40 -
Vendor
0.09
0.06
1.65
0.72
0.01
0.02
0.46
0.49
0.02
0.13
0.15 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.53
0.47
0.62
6.13
0.00
0.00
1.71
1.71
0.00
0.40
0.40 -
Vendor
0.08
0.06
1.77
0.73
0.01
0.02
0.46
0.49
0.02
0.13
0.15 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.37
0.33
0.38
5.16
0.00
0.00
1.15
1.15
0.00
0.27
0.27 -
Vendor
0.06
0.04
1.16
0.48
0.01
0.02
0.31
0.33
0.02
0.09
0.10 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.07
0.06
0.07
0.94
0.00
0.00
0.21
0.21
0.00
0.05
0.05 -
Vendor
0.01
0.01
0.21
0.09
< 0.005
< 0.005
0.06
0.06
< 0.005
0.02
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.9. Building Construction (2028) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily,
Summer
(Max)
Off-Roa 1.18 0.99 8.92 12.9 0.02 0.30 - 0.30 0.28 - 0.28
d
Equipm
ent
1,869
1,869
0.02
0.06
5.51
1,894
1,641
1,641
0.02
0.22
4.06
1,710
0.00
0.00
0.00
0.00
0.00
0.00
1,592
1,592
0.02
0.06
0.14
1,611
1,642
1,642
0.02
0.22
0.11
1,708
0.00
0.00
0.00
0.00
0.00
0.00
1,142
1,142
0.01
0.04
1.60
1,156
1,102
1,102
0.01
0.15
1.18
1,147
0.00
0.00
0.00
0.00
0.00
0.00
189
189
< 0.005
0.01
0.26
191
182
182
< 0.005
0.02
0.19
190
0.00
0.00
0.00
0.00
0.00
0.00
2,397 2,397 0.10 0.02 - 2,406
14/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
1.18
0.99
8.92
12.9
0.02
0.30
-
0.30
0.28
-
0.28 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.85
0.71
6.39
9.26
0.02
0.22
-
0.22
0.20
-
0.20 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.15
0.13
1.17
1.69
< 0.005
0.04
-
0.04
0.04
-
0.04 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.60
0.54
0.51
10.1
0.00
0.00
1.71
1.71
0.00
0.40
0.40 -
Vendor
0.07
0.05
1.58
0.68
0.01
0.02
0.46
0.49
0.02
0.13
0.15 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,406
0.00
0.00
0.00
0.00
0.00 0.00
1,717
1,717
0.07
0.01
- 1,723
0.00
0.00
0.00
0.00 0.00
0.00
284
284
0.01
< 0.005 -
285
0.00 0.00 0.00 0.00 0.00 0.00
1,834
1,834
0.02
0.06
4.96
1,858
1,602
1,602
0.02
0.22
3.75
1,670
0.00
0.00
0.00
0.00
0.00
0.00
15/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Worker 0.46 0.45 0.57 5.69 0.00 0.00 1.71
1.71
0.00
0.40
0.40 -
1,563
1,563
0.02
0.06
0.13
1,582
Vendor 0.07 0.04 1.70 0.71 0.01 0.02 0.46
0.49
0.02
0.13
0.15 -
1,603
1,603
0.02
0.22
0.10
1,669
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Daily
Worker 0.35 0.34 0.36 5.12 0.00 0.00 1.22
1.22
0.00
0.29
0.29 -
1,196
1,196
0.01
0.04
1.53
1,211
Vendor 0.05 0.03 1.19 0.49 0.01 0.02 0.33
0.35
0.02
0.09
0.11 -
1,148
1,148
0.01
0.16
1.16
1,195
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Worker 0.06 0.06 0.07 0.93 0.00 0.00 0.22
0.22
0.00
0.05
0.05 -
198
198
< 0.005
0.01
0.25
200
Vendor 0.01 0.01 0.22 0.09 < 0.005 < 0.005 0.06
0.06
< 0.005
0.02
0.02 -
190
190
< 0.005
0.03
0.19
198
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.11. Building Construction (2029) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Daily, - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Daily, - - -
-
-
-
- -
Winter
(Max)
Off-Roa 1.15 0.97 8.58 12.9 0.02 0.28 -
0.28
0.25
-
0.25 -
2,397
2,397
0.10
0.02
-
2,405
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Average
Daily
0.00 0.00 0.00 0.00 0.00 0.00
16/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Off-Roa
0.14
0.12
1.02
1.54
< 0.005
0.03
-
0.03
0.03
-
0.03 -
d
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
Off-Roa
0.03
0.02
0.19
0.28
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Daily,
Winter
(Max)
Worker
0.44
0.37
0.51
5.36
0.00
0.00
1.71
1.71
0.00
0.40
0.40 -
Vendor
0.07
0.04
1.63
0.68
0.01
0.02
0.46
0.49
0.02
0.13
0.15 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.06
0.05
0.05
0.80
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.01
0.01
0.19
0.08
< 0.005
< 0.005
0.05
0.06
< 0.005
0.02
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
0.01
0.15
0.00
0.00
0.04
0.04
0.00
0.01
0.01 -
Vendor
< 0.005
< 0.005
0.03
0.01
< 0.005
< 0.005
0.01
0.01
< 0.005
< 0.005
< 0.005 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.13. Paving (2029) - Unmitigated
286
286
0.01
< 0.005 -
287
0.00
0.00
0.00
0.00 0.00
0.00
47.4
47.4
< 0.005
< 0.005 -
47.5
0.00 0.00 0.00 0.00 0.00 0.00
1,535
1,535
0.02
0.06
0.12
1,554
1,561
1,561
0.02
0.21
0.09
1,623
0.00
0.00
0.00
0.00
0.00
0.00
196
196
< 0.005
0.01
0.23
198
186
186
< 0.005
0.02
0.18
194
0.00
0.00
0.00
0.00
0.00
0.00
32.4
32.4
< 0.005
< 0.005
0.04
32.8
30.8
30.8
< 0.005
< 0.005
0.03
32.1
0.00
0.00
0.00
0.00
0.00
0.00
17/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily,
-
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Summer
(Max)
Daily,
-
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Winter
(Max)
Off-Roa
0.80
0.67
6.46
9.92
0.01
0.24 -
0.24
0.22 -
0.22 -
1,511
1,511
0.06
0.01 -
1,516
d
Equipm
ent
Paving
0.00
0.00
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Onsite
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average
-
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Daily
Off-Roa
0.04
0.04
0.35
0.54
< 0.005
0.01 -
0.01
0.01 -
0.01 -
82.8
82.8
< 0.005
< 0.005 -
83.1
d
Equipm
ent
Paving
0.00
0.00
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Onsite
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Annual
-
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Off-Roa
0.01
0.01
0.06
0.10
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
13.7
13.7
< 0.005
< 0.005 -
13.8
d
Equipm
ent
Paving
0.00
0.00
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Onsite
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Offsite
-
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
18/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Daily, - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Daily, - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Winter
(Max)
Worker 0.05 0.04 0.06 0.61 0.00 0.00 0.20
0.20
0.00
0.05
0.05 -
176
176
< 0.005
0.01
0.01
178
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Daily
Worker < 0.005 < 0.005 < 0.005 0.04 0.00 0.00 0.01
0.01
0.00
< 0.005
< 0.005 -
10.3
10.3
< 0.005
< 0.005
0.01
10.4
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual- - - - - - -
-
-
-
- -
-
-
-
-
-
-
Worker < 0.005 < 0.005 < 0.005 0.01 0.00 0.00 < 0.005
< 0.005
0.00
< 0.005
< 0.005 -
1.70
1.70
< 0.005
< 0.005
< 0.005
1.72
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.15. Architectural Coating (2029) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Daily, - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Off-Roa 0.12 0.10 0.79 1.11 < 0.005 0.01 -
0.01
0.01
-
0.01 -
134
134
0.01
< 0.005
-
134
d
Equipm
ent
19/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Architect 50.9
50.9
-
-
-
- -
-
- -
- -
-
-
-
- -
-
ural
Coating
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Daily,
Winter
(Max)
Off-Roa 0.12
0.10
0.79
1.11
< 0.005
0.01 -
0.01
0.01 -
0.01 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 50.9
50.9
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Daily
Off-Roa 0.02
0.02
0.13
0.18
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
21.9
21.9
< 0.005
< 0.005 -
22.0
d
Equipm
ent
Architect 8.37
8.37
-
-
-
- -
-
- -
- -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Annual-
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Off-Roa < 0.005
< 0.005
0.02
0.03
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
3.63
3.63
< 0.005
< 0.005 -
3.65
d
Equipm
ent
20 / 28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Architect 1.53
1.53
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.10
0.10
0.09
1.88
0.00
0.00
0.34
0.34
0.00
0.08
0.08 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.09
0.07
0.10
1.07
0.00
0.00
0.34
0.34
0.00
0.08
0.08 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.02
0.01
0.01
0.22
0.00
0.00
0.06
0.06
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.04
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
4. Operations Emissions Details
0.00 0.00 0.00 0.00 0.00 0.00
360
360
< 0.005
0.01
0.89
365
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
307
307
< 0.005
0.01
0.02
311
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
53.9
53.9
< 0.005
< 0.005
0.06
54.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
8.93
8.93
< 0.005
< 0.005
0.01
9.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21 / 28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total— — — — — — — — — — — — — — — — — —
Daily, — — — — — — — — — — — — — — — — — —
Winter
(Max)
Total — — — — — — — — — — — — — — — — — —
Annual
Total
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — —
Summer
(Max)
Total — — — —
Daily, — — — —
Winter
(Max)
Total — — — —
Annual — — — —
Total — — — —
- - - - - - - - - - - - - -
- - - - - - - - - - - - - -
- - - - - - - - - - - - - -
22/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/da
Daily, — — — — — — — —
Summer
(Max)
Avoided — — — — — — — — -
Subtotal — — — — — — — — -
Sequest — — — — — — — — -
ered
Subtotal — — — — — — — — -
Remove — — — — — — — — -
d
Subtotal — — — — -
Daily, — — — -
Winter
(Max)
Avoided — — — — — — — — -
Subtotal — — — — — — — — -
Sequest — — — — — — — — -
ered
Subtotal — — — — — — — — -
Remove — — — — — — — — -
d
Subtotal — — — — — — — — -
Annual — — — — — — — — -
Avoided — — — — — — — — -
Subtotal — — — — — — — — -
for daily,•
M2.5E PM2.51D PM2.5T BCO2 NBCO2 CO2T CF
23 / 28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Sequest - - - - -
- -
- -
- - -
- - - - - -
ered
Subtotal - - - - -
- -
- -
- - -
- - - - - -
Remove - - - - -
- -
- -
- - -
- - - - - -
d
Subtotal
-
- -
5. Activity Data
5.1. Construction Schedule
Phase Name
Days Per Week
Work Days per Phase Phase Description
Demolition Demolition
11 /1 /2026
12/13/2026
5.00
30.0 -
Grading Grading
12/14/2026
1/22/2027
5.00
30.0 -
Building Construction Building Construction
1/23/2027
3/2/2029
5.00
550 -
Paving Paving
3/3/2029
3/30/2029
5.00
20.0 -
Architectural Coating Architectural Coating
3/3/2029
5/25/2029
5.00
60.0 -
5.2. Off -Road Equipment
5.2.1. Unmitigated
Demolition
Concrete/Industrial
Diesel
Average
1.00
8.00
33.0
0.73
Saws
Demolition
Excavators
Diesel
Average
3.00
8.00
36.0
0.38
Demolition
Rubber Tired Dozers
Diesel
Average
2.00
8.00
367
0.40
Grading
Excavators
Diesel
Average
2.00
8.00
36.0
0.38
Grading
Graders
Diesel
Average
1.00
8.00
148
0.41
Grading
Rubber Tired Dozers
Diesel
Average
1.00
8.00
367
0.40
24/28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Grading
Tractors/Loaders/Back
Diesel
Average
2.00
8.00
84.0
0.37
Grading
Scrapers
Diesel
Average
2.00
8.00
423
0.48
Building Construction
Cranes
Diesel
Average
1.00
7.00
367
0.29
Building Construction
Forklifts
Diesel
Average
3.00
8.00
82.0
0.20
Building Construction
Generator Sets
Diesel
Average
1.00
8.00
14.0
0.74
Building Construction
Tractors/Loaders/Back
Diesel
Average
3.00
7.00
84.0
0.37
hoes
Building Construction
Welders
Diesel
Average
1.00
8.00
46.0
0.45
Paving
Pavers
Diesel
Average
2.00
8.00
81.0
0.42
Paving
Paving Equipment
Diesel
Average
2.00
8.00
89.0
0.36
Paving
Rollers
Diesel
Average
2.00
8.00
36.0
0.38
Architectural Coating
Air Compressors
Diesel
Average
1.00
6.00
37.0
0.48
5.3. Construction Vehicles
5.3.1. Unmitigated
Demolition
-
-
-
-
Demolition
Worker
15.0
18.5
LDA,LDT1,LDT2
Demolition
Vendor
-
10.2
HHDTMHDT
Demolition
Hauling
111
20.0
HHDT
Demolition
Onsite truck
-
-
HHDT
Grading
-
-
-
-
Grading
Worker
20.0
18.5
LDA,LDT1,LDT2
Grading
Vendor
-
10.2
HHDT,MHDT
Grading
Hauling
0.00
20.0
HHDT
Grading
Onsite truck
-
-
HHDT
Building Construction
-
-
-
-
Building Construction
Worker
131
18.5
LDA,LDT1,LDT2
25 / 28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
Building Construction
Vendor
54.0
10.2
HHDT,MHDT
Building Construction
Hauling
0.00
20.0
HHDT
Building Construction
Onsite truck
—
—
HHDT
Paving
—
—
—
—
Paving
Worker
15.0
18.5
LDA,LDT1,LDT2
Paving
Vendor
—
10.2
HHDT,MHDT
Paving
Hauling
0.00
20.0
HHDT
Paving
Onsite truck
—
—
HHDT
Architectural Coating
—
—
—
—
Architectural Coating
Worker
26.2
18.5
LDA,LDT1,LDT2
Architectural Coating
Vendor
—
10.2
HHDT,MHDT
Architectural Coating
Hauling
0.00
20.0
HHDT
Architectural Coating
Onsite truck
—
—
HHDT
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
Water unpaved roads twice daily 55%
Limit vehicle speeds on unpaved roads to 25 mph 44%
Sweep paved roads once per month 9%
5.5. Architectural Coatings
Architectural Coating 0.00 0.00
5.6. Dust Mitigation
494,250
55%
44%
9%
164,750
26 / 28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
5.6.1. Construction Earthmoving Activities
Demolition 0.00 0.00 0.00 288,517 —
Grading — — 90.0 0.00 —
Paving 0.00 0.00 0.00 0.00 0.00
5.6.2. Construction Earthmoving Control Strategies
Water Exposed Area 3
74%
74%
Water Demolished Area 2
36%
36%
5.7. Construction Paving
PavedArea
.
Hotel
0.00
0%
Quality Restaurant
0.00
0%
General Office Building
0.00
0%
General Office Building
0.00
0%
Golf Course
0.00
0%
5.8. Construction Electricity Consumption and Emissions Factors
kWh per Year and Emission Factor (lb/MWh)
2027
0.00
457
0.03
< 0.005
2028
0.00
457
0.03
< 0.005
2026
0.00
457
0.03
< 0.005
2029
0.00
457
0.03
< 0.005
27 / 28
SilverRock Resort Proposed Project Construction Phase 1 (Planning Areas 1,3,4,5) Custom Report, 7/18/2025
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
5.18.2.1. Unmitigated
8. User Changes to Default Data
Land Use
Initial Acres Final Acres
Planning Area 1 includes upgrading the existing golf course.
Planning Area 3 includes 154-unit luxury hotel, with approximately 250,000 SF of total space
and the 7,500 restaurant.
Planning Area 4 includes 17,000 SF golf clubhouse.
Planning Area 5 includes 55,000 SF Banquet Meeting Space.
Assumed an estimate of 10% of land uses landscaped.
Construction: Construction Phases Construction estimated to take place from November 2026 to May 2029.
EWFW-1
n-I
Proposed Project Construction
(Planning Area 2)
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
SilverRock Resort Proposed Project Construction Phase 1 (Planning
Area 2) Custom Report
Table of Contents
1. Basic Project Information
1.1. Basic Project Information
1.2. Land Use Types
1.3. User -Selected Emission Reduction Measures by Emissions Sector
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
2.2. Construction Emissions by Year, Unmitigated
3. Construction Emissions Details
3.1. Demolition (2027) - Unmitigated
3.3. Grading (2027) - Unmitigated
3.5. Grading (2028) - Unmitigated
3.7. Building Construction (2028) - Unmitigated
3.9. Building Construction (2029) - Unmitigated
3.11. Building Construction (2030) - Unmitigated
1 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
3.13. Building Construction (2031) - Unmitigated
3.15. Paving (2028) - Unmitigated
3.17. Paving (2029) - Unmitigated
3.19. Paving (2030) - Unmitigated
3.21. Paving (2031) - Unmitigated
3.23. Architectural Coating (2028) - Unmitigated
3.25. Architectural Coating (2029) - Unmitigated
3.27. Architectural Coating (2030) - Unmitigated
3.29. Architectural Coating (2031) - Unmitigated
4. Operations Emissions Details
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
5. Activity Data
5.1. Construction Schedule
5.2. Off -Road Equipment
5.2.1. Unmitigated
2/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
5.3. Construction Vehicles
5.3.1. Unmitigated
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
5.5. Architectural Coatings
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
5.6.2. Construction Earthmoving Control Strategies
5.7. Construction Paving
5.8. Construction Electricity Consumption and Emissions Factors
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
5.18.2.1. Unmitigated
8. User Changes to Default Data
3/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
1. Basic Project Information
1.1. Basic Project Information
Project Name
Construction Start Date
Lead Agency
Land Use Scale
Analysis Level for Defaults
Windspeed (m/s)
Precipitation (days)
Location
County
City
Air District
Air Basin
TAZ
EDFZ
Electric Utility
Gas Utility
App Version
1.2. Land Use Types
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2)
1 / 1 /2027
Project/site
County
3.00
7.60
33.672095298053605,-116.2796035818008
Riverside -Salton Sea
La Quinta
South Coast AQMD
Salton Sea
5651
19
Imperial Irrigation District
Southern California Gas
2022.1.1.29
Single Family 29.0 Dwelling Unit 9.42 56,550 5,655 —
Housing
94.0
4/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
1.3. User -Selected Emission Reduction Measures by Emissions Sector
No measures selected
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, - - - - - - - - - - - -
Summer
(Max)
Unmit. 2.68 2.32 16.6 26.1 0.04 0.57 0.39 0.96 0.53 0.09 0.62 -
Daily,
Winter
(Max)
Unmit. 2.77 2.31 22.7 25.2 0.05 0.84 2.79 3.63 0.78 0.94 1.49 -
Average - - - - - - - - - - - -
Daily
(Max)
Unmit. 1.87 1.62 11.8 18.1 0.03 0.41 0.34 0.75 0.38 0.10 0.48 -
Annual
(Max)
Unmit. 0.34 0.30 2.14 3.31 0.01 0.07 0.06 0.14 0.07 0.02 0.09 -
Exceeds
(Daily
Max)
Threshol - 75.0 100 550 150 - - 150 - - 55.0 -
d
Unmit. - No No No No - - No - - No -
Exceeds - - - - - - - - - - - -
(Average
Daily)
4,519 4,519 0.17 0.06 1.26 4,542
5,880 5,880 0.17 0.40 0.13 6,004
3,196
3,196
0.12
0.04
0.38
3,212
529
529
0.02
0.01
0.06
532
5/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Threshol
-
75.0
100
550
150
-
-
150
-
-
55.0 -
d
Unmit.
-
No
No
No
No
-
-
No
-
-
No -
2.2. Construction Emissions by
Year,
Unmitigated
Criteria
Pollutants (lb/day for
daily, ton/yr
for annual)
and GHGs (lb/day for daily, MT/yr for annual)
Daily -
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
2028
2.68
2.32
16.6
26.1
0.04
0.57
0.39
0.96
0.53
0.09
0.62 -
2029
2.61
2.27
16.0
25.9
0.04
0.53
0.39
0.92
0.49
0.09
0.58 -
2030
2.53
2.19
15.6
25.8
0.04
0.49
0.39
0.88
0.45
0.09
0.55 -
2031
2.48
2.15
15.2
25.6
0.04
0.46
0.39
0.85
0.43
0.09
0.52 -
Daily -
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
2027
2.77
2.31
22.7
19.9
0.05
0.84
2.79
3.63
0.78
0.94
1.49 -
2028
2.65
2.30
16.6
25.2
0.04
0.57
2.04
2.61
0.53
0.94
1.46 -
2029
2.59
2.24
16.0
25.1
0.04
0.53
0.39
0.92
0.49
0.09
0.58 -
2030
2.52
2.18
15.6
25.0
0.04
0.49
0.39
0.88
0.45
0.09
0.55 -
2031
2.46
2.13
15.2
24.8
0.04
0.46
0.39
0.85
0.43
0.09
0.52 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
2027
0.31
0.26
2.45
2.40
0.01
0.09
0.31
0.41
0.09
0.08
0.17 -
2028
1.87
1.62
11.8
18.0
0.03
0.41
0.34
0.75
0.38
0.10
0.48 -
2029
1.85
1.61
11.4
18.1
0.03
0.38
0.27
0.65
0.35
0.07
0.41 -
2030
1.80
1.56
11.2
18.0
0.03
0.35
0.27
0.63
0.32
0.07
0.39 -
2031
0.56
0.48
3.42
5.65
0.01
0.10
0.09
0.19
0.10
0.02
0.12 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
6/43
4,519
4,519
0.17
0.06
1.26
4,542
4,508
4,508
0.17
0.06
1.13
4,531
4,499
4,499
0.17
0.06
1.01
4,522
4,491
4,491
0.17
0.06
0.91
4,513
5,880
5,880
0.16
0.40
0.13
6,004
4,462
4,462
0.17
0.06
0.03
4,484
4,453
4,453
0.17
0.06
0.03
4,474
4,445
4,445
0.17
0.06
0.03
4,466
4,437
4,437
0.17
0.06
0.02
4,459
614
614
0.02
0.03
0.19
625
3,157
3,157
0.12
0.04
0.38
3,173
3,196
3,196
0.12
0.04
0.35
3,212
3,190
3,190
0.12
0.04
0.31
3,206
1,003
1,003
0.04
0.01
0.09
1,008
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
2027
0.06
0.05
0.45
0.44
< 0.005
0.02
0.06
0.07
0.02
0.01
0.03 -
2028
0.34
0.30
2.14
3.28
0.01
0.07
0.06
0.14
0.07
0.02
0.09 -
2029
0.34
0.29
2.09
3.31
0.01
0.07
0.05
0.12
0.06
0.01
0.08 -
2030
0.33
0.28
2.04
3.29
0.01
0.06
0.05
0.11
0.06
0.01
0.07 -
2031
0.10
0.09
0.62
1.03
< 0.005
0.02
0.02
0.03
0.02
< 0.005
0.02 -
3. Construction Emissions Details
3.1. Demolition (2027) - Unmitigated
102
102
< 0.005
0.01
0.03
103
523
523
0.02
0.01
0.06
525
529
529
0.02
0.01
0.06
532
528
528
0.02
0.01
0.05
531
166
166
0.01
< 0.005
0.01
167
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Dail - - - - - - - - - - - - - - - - - -
YI
Summer
(Max)
Daily,
Winter
(Max)
Off-Roa 2.64
2.21 19.9 18.6 0.03 0.80 - 0.80
0.73 - 0.73 -
d
Equipm
ent
Demoliti -
- - - - - 1.96 1.96
- 0.30 0.30 -
on
Onsite 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 -
truck
Average -
- - - - - - -
- - - -
Daily
Off-Roa 0.22
0.18 1.64 1.53 < 0.005 0.07 - 0.07
0.06 - 0.06 -
d
Equipm
ent
3,427 3,427 0.14 0.03 - 3,439
0.00
0.00
0.00
0.00 0.00
0.00
282
282
0.01
< 0.005 -
283
7/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Demoliti
-
-
-
-
-
-
0.16
0.16
-
0.02
0.02 -
on
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
Off-Roa
0.04
0.03
0.30
0.28
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Demoliti
-
-
-
-
-
-
0.03
0.03
-
< 0.005
< 0.005 -
on
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
- -
Daily,
-
-
-
-
-
Summer
(Max)
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.06
0.05
0.07
0.70
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.07
0.04
2.70
0.61
0.02
0.05
0.63
0.68
0.05
0.18
0.22 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
< 0.005
0.01
0.07
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.01
< 0.005
0.22
0.05
< 0.005
< 0.005
0.05
0.06
< 0.005
0.01
0.02 -
Annual
Worker
< 0.005
< 0.005
< 0.005
0.01
0.00
0.00
< 0.005
< 0.005
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
< 0.005
< 0.005
0.04
0.01
< 0.005
< 0.005
0.01
0.01
< 0.005
< 0.005
< 0.005 -
0.00 0.00 0.00 0.00 0.00 0.00
46.6 46.6 < 0.005 < 0.005 - 46.8
0.00 0.00 0.00 0.00 0.00 0.00
182
182
< 0.005
0.01
0.02
184
0.00
0.00
0.00
0.00
0.00
0.00
2,271
2,271
0.02
0.37
0.12
2,381
16.0
16.0
< 0.005
< 0.005
0.02
16.2
0.00
0.00
0.00
0.00
0.00
0.00
187
187
< 0.005
0.03
0.16
196
2.65
2.65
< 0.005
< 0.005
< 0.005
2.68
0.00
0.00
0.00
0.00
0.00
0.00
30.9
30.9
< 0.005
< 0.005
0.03
32.4
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SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
3.3. Grading (2027) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Summer
(Max)
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Winter
(Max)
Off-Roa 1.89
1.59
14.2
17.3
0.03
0.60
-
0.60
0.55
-
0.55 -
2,960
2,960
0.12
0.02 -
2,970
d
Equipm
ent
Dust -
-
-
-
-
-
1.84
1.84
-
0.89
0.89 -
-
-
-
- -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Daily
Off-Roa 0.08
0.07
0.58
0.71
< 0.005
0.02
-
0.02
0.02
-
0.02 -
122
122
< 0.005
< 0.005 -
122
d
Equipm
ent
Dust -
-
-
-
-
-
0.08
0.08
-
0.04
0.04 -
-
-
-
- -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Annual
9/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Off-Roa
0.01
0.01
0.11
0.13
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Dust
-
-
-
-
-
-
0.01
0.01
-
0.01
0.01 -
From
Material
Movement
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.06
0.05
0.07
0.70
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
< 0.005
< 0.005
< 0.005
0.04
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
Worker
< 0.005
< 0.005
< 0.005
0.01
0.00
0.00
< 0.005
< 0.005
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.5. Grading (2028) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
10/43
20.1 20.1 < 0.005 < 0.005 - 20.2
0.00 0.00 0.00 0.00 0.00 0.00
182
182
< 0.005
0.01
0.02
184
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
7.99
7.99
< 0.005
< 0.005
0.01
8.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.32
1.32
< 0.005
< 0.005
< 0.005
1.34
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Onsite
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Summer
(Max)
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Winter
(Max)
Off-Roa 1.86
1.56
13.8
17.3
0.03
0.57
-
0.57
0.52
-
0.52 -
2,961
2,961
0.12
0.02 -
2,971
d
Equipm
ent
Dust -
-
-
-
-
-
1.84
1.84
-
0.89
0.89 -
-
-
-
- -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Daily
Off-Roa 0.08
0.06
0.57
0.71
< 0.005
0.02
-
0.02
0.02
-
0.02 -
122
122
< 0.005
< 0.005 -
122
d
Equipm
ent
Dust -
-
-
-
-
-
0.08
0.08
-
0.04
0.04 -
-
-
-
- -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Annual
Off-Roa 0.01
0.01
0.10
0.13
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
20.1
20.1
< 0.005
< 0.005 -
20.2
d
Equipm
ent
11 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Dust - - - - - - 0.01
0.01
-
0.01
0.01 -
-
-
-
-
-
From
Material
Movement
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Daily, - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Daily, - - - - - - -
-
-
-
- -
-
-
-
-
-
-
Winter
(Max)
Worker 0.05 0.05 0.06 0.65 0.00 0.00 0.20
0.20
0.00
0.05
0.05 -
179
179
< 0.005
0.01
0.01
181
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
Daily
Worker < 0.005 < 0.005 < 0.005 0.03 0.00 0.00 0.01
0.01
0.00
< 0.005
< 0.005 -
7.85
7.85
< 0.005
< 0.005
0.01
7.94
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual- - - - - - -
-
-
-
- -
-
-
-
-
-
-
Worker < 0.005 < 0.005 < 0.005 0.01 0.00 0.00 < 0.005
< 0.005
0.00
< 0.005
< 0.005 -
1.30
1.30
< 0.005
< 0.005
< 0.005
1.32
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.7. Building Construction (2028) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
12/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Off-Roa
1.18
0.99
8.92
12.9
0.02
0.30
-
0.30
0.28
-
0.28 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
1.18
0.99
8.92
12.9
0.02
0.30
-
0.30
0.28
-
0.28 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.80
0.67
6.03
8.73
0.02
0.20
-
0.20
0.19
-
0.19 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.15
0.12
1.10
1.59
< 0.005
0.04
-
0.04
0.03
-
0.03 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
2,397 2,397 0.10 0.02 - 2,406
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,406
0.00
0.00
0.00
0.00
0.00 0.00
1,619
1,619
0.07
0.01
- 1,624
0.00
0.00
0.00
0.00 0.00
0.00
268
268
0.01
< 0.005 -
269
0.00 0.00 0.00 0.00 0.00 0.00
13/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Worker
0.05
0.04
0.04
0.80
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
< 0.005
< 0.005
0.09
0.04
< 0.005
< 0.005
0.03
0.03
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.04
0.04
0.04
0.45
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
< 0.005
< 0.005
0.10
0.04
< 0.005
< 0.005
0.03
0.03
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.03
0.03
0.03
0.38
0.00
0.00
0.09
0.09
0.00
0.02
0.02 -
Vendor
< 0.005
< 0.005
0.06
0.03
< 0.005
< 0.005
0.02
0.02
< 0.005
< 0.005
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.07
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
< 0.005
< 0.005
0.01
< 0.005
< 0.005
< 0.005
< 0.005
< 0.005
< 0.005
< 0.005
< 0.005 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.9. Building Construction (2029) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily,
Summer
(Max)
Off-Roa 1.15 0.97 8.58 12.9 0.02 0.28 - 0.28 0.25 - 0.25
d
Equipm
ent
146
146
< 0.005
< 0.005
0.39
148
91.9
91.9
< 0.005
0.01
0.22
95.9
0.00
0.00
0.00
0.00
0.00
0.00
124
124
< 0.005
< 0.005
0.01
126
92.0
92.0
< 0.005
0.01
0.01
95.8
0.00
0.00
0.00
0.00
0.00
0.00
89.7
89.7
< 0.005
< 0.005
0.12
90.8
62.1
62.1
< 0.005
0.01
0.06
64.7
0.00
0.00
0.00
0.00
0.00
0.00
14.9
14.9
< 0.005
< 0.005
0.02
15.0
10.3
10.3
< 0.005
< 0.005
0.01
10.7
0.00
0.00
0.00
0.00
0.00
0.00
2,397 2,397 0.10 0.02 - 2,405
14/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
1.15
0.97
8.58
12.9
0.02
0.28
-
0.28
0.25
-
0.25 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.82
0.69
6.13
9.22
0.02
0.20
-
0.20
0.18
-
0.18 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.15
0.13
1.12
1.68
< 0.005
0.04
-
0.04
0.03
-
0.03 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.04
0.04
0.04
0.75
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
< 0.005
< 0.005
0.09
0.04
< 0.005
< 0.005
0.03
0.03
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,712
1,712
0.07
0.01
- 1,718
0.00
0.00
0.00
0.00 0.00
0.00
283
283
0.01
< 0.005 -
284
0.00 0.00 0.00 0.00 0.00 0.00
143
143
< 0.005
< 0.005
0.35
145
89.5
89.5
< 0.005
0.01
0.20
93.2
0.00
0.00
0.00
0.00
0.00
0.00
15/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Worker
0.03
0.03
0.04
0.43
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
< 0.005
< 0.005
0.09
0.04
< 0.005
< 0.005
0.03
0.03
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.03
0.03
0.03
0.38
0.00
0.00
0.10
0.10
0.00
0.02
0.02 -
Vendor
< 0.005
< 0.005
0.07
0.03
< 0.005
< 0.005
0.02
0.02
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.07
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
< 0.005
< 0.005
0.01
< 0.005
< 0.005
< 0.005
< 0.005
< 0.005
< 0.005
< 0.005
< 0.005 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.11. Building Construction (2030) - Unmitigated
122
122
< 0.005
< 0.005
0.01
124
89.6
89.6
< 0.005
0.01
0.01
93.2
0.00
0.00
0.00
0.00
0.00
0.00
93.2
93.2
< 0.005
< 0.005
0.11
94.4
64.0
64.0
< 0.005
0.01
0.06
66.6
0.00
0.00
0.00
0.00
0.00
0.00
15.4
15.4
< 0.005
< 0.005
0.02
15.6
10.6
10.6
< 0.005
< 0.005
0.01
11.0
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Off-Roa 1.12 0.94 8.39 12.9 0.02 0.26 - 0.26 0.24 - 0.24
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Daily, - - - - - - - - - - -
Winter
(Max)
2,397 2,397 0.10 0.02 - 2,405
16/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Off-Roa
1.12
0.94
8.39
12.9
0.02
0.26
-
0.26
0.24
-
0.24 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.80
0.67
5.99
9.20
0.02
0.19
-
0.19
0.17
-
0.17 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.15
0.12
1.09
1.68
< 0.005
0.03
-
0.03
0.03
-
0.03 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Worker
0.04
0.03
0.03
0.70
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
< 0.005
< 0.005
0.08
0.04
< 0.005
< 0.005
0.03
0.03
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.03
0.03
0.04
0.40
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
< 0.005
< 0.005
0.09
0.04
< 0.005
< 0.005
0.03
0.03
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1.712
1.712
0.07
0.01
- 1.718
0.00
0.00
0.00
0.00 0.00
0.00
283
283
0.01
< 0.005 -
284
0.00 0.00 0.00 0.00 0.00 0.00
141
141
< 0.005
< 0.005
0.32
143
87.0
87.0
< 0.005
0.01
0.18
90.7
0.00
0.00
0.00
0.00
0.00
0.00
120
120
< 0.005
< 0.005
0.01
122
87.1
87.1
< 0.005
0.01
< 0.005
90.6
0.00
0.00
0.00
0.00
0.00
0.00
17/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Average - - - - - - -
-
-
- - -
Daily
Worker 0.02 0.02 0.03 0.35 0.00 0.00 0.10
0.10
0.00
0.02 0.02 -
Vendor < 0.005 < 0.005 0.06 0.03 < 0.005 < 0.005 0.02
0.02
< 0.005
0.01 0.01 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00 0.00 -
Annual - - - - - - -
-
-
- - -
Worker < 0.005 < 0.005 < 0.005 0.06 0.00 0.00 0.02
0.02
0.00
< 0.005 < 0.005 -
Vendor < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005
< 0.005
< 0.005
< 0.005 < 0.005 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00 0.00 -
3.13. Building Construction (2031) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - -
-
-
- - -
Daily, - - - - - - -
-
-
- - -
Summer
(Max)
Off-Roa 1.10 0.92 8.12 12.8 0.02 0.24 -
0.24
0.22
- 0.22 -
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00 0.00 -
truck
Daily, - - - - - - -
-
-
- - -
Winter
(Max)
Off-Roa 1.10 0.92 8.12 12.8 0.02 0.24 -
0.24
0.22
- 0.22 -
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00 0.00 -
truck
91.7
91.7
< 0.005
< 0.005
0.10
92.8
62.2
62.2
< 0.005
0.01
0.06
64.7
0.00
0.00
0.00
0.00
0.00
0.00
15.2
15.2
< 0.005
< 0.005
0.02
15.4
10.3
10.3
< 0.005
< 0.005
0.01
10.7
0.00
0.00
0.00
0.00
0.00
0.00
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
18/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.25
0.21
1.83
2.89
0.01
0.05
-
0.05
0.05
-
0.05 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.05
0.04
0.33
0.53
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.04
0.03
0.03
0.66
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
< 0.005
< 0.005
0.08
0.03
< 0.005
< 0.005
0.03
0.03
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.03
0.03
0.03
0.37
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
< 0.005
< 0.005
0.09
0.04
< 0.005
< 0.005
0.03
0.03
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.01
0.01
0.01
0.10
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
< 0.005
< 0.005
0.02
0.01
< 0.005
< 0.005
0.01
0.01
< 0.005
< 0.005
< 0.005 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
19/43
539 539 0.02 < 0.005 - 541
0.00 0.00 0.00 0.00 0.00 0.00
89.3 89.3 < 0.005 < 0.005 - 89.6
0.00 0.00 0.00 0.00 0.00 0.00
139
139
< 0.005
< 0.005
0.28
140
84.4
84.4
< 0.005
0.01
0.16
88.1
0.00
0.00
0.00
0.00
0.00
0.00
118
118
< 0.005
< 0.005
0.01
120
84.5
84.5
< 0.005
0.01
< 0.005
88.1
0.00
0.00
0.00
0.00
0.00
0.00
28.4
28.4
< 0.005
< 0.005
0.03
28.8
19.0
19.0
< 0.005
< 0.005
0.02
19.8
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Worker < 0.005 < 0.005 < 0.005 0.02 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 - 4.71 4.71 < 0.005
< 0.005 < 0.005 4.77
Vendor < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 - 3.15 3.15 < 0.005
< 0.005 < 0.005 3.28
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00
0.00 0.00 0.00
3.15. Paving (2028) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - -
- - -
Dail - - - - - - - - - - - - - - -
- - -
yI
Summer
(Max)
Off-Roa
0.82
0.69
6.63
9.91
0.01
0.26
- 0.26
0.24
- 0.24 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.82
0.69
6.63
9.91
0.01
0.26
- 0.26
0.24
- 0.24 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.55
0.46
4.47
6.69
0.01
0.17
- 0.17
0.16
- 0.16 -
d
Equipm
ent
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,020
1,020
0.04
0.01
- 1,024
20 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.10
0.08
0.82
1.22
< 0.005
0.03
-
0.03
0.03
-
0.03 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.07
0.06
0.06
1.16
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.05
0.05
0.06
0.65
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.04
0.04
0.04
0.55
0.00
0.00
0.13
0.13
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
0.01
0.10
0.00
0.00
0.02
0.02
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
21 / 43
0.00 0.00 0.00 0.00 0.00 0.00
169 169 0.01 < 0.005 - 169
0.00 0.00 0.00 0.00 0.00 0.00
210
210
< 0.005
0.01
0.57
212
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
179
179
< 0.005
0.01
0.01
181
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
129
129
< 0.005
< 0.005
0.17
131
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21.3
21.3
< 0.005
< 0.005
0.03
21.6
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00 0.00 0.00 0.00
3.17. Paving (2029) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) �l
Onsite - - - - - - - - - - - - - - - - - -
Dail - - - - - - - - - - - - - - - - - -
yI
Summer
(Max)
Off-Roa
0.80
0.67
6.46
9.92
0.01
0.24
- 0.24
0.22
- 0.22 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.80
0.67
6.46
9.92
0.01
0.24
- 0.24
0.22
- 0.22 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.57
0.48
4.61
7.08
0.01
0.17
- 0.17
0.16
- 0.16 -
d
Equipm
ent
Paving 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,079
1,079
0.04
0.01
- 1,083
22 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.10
0.09
0.84
1.29
< 0.005
0.03
-
0.03
0.03
-
0.03 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.06
0.06
0.05
1.08
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.05
0.04
0.06
0.61
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.04
0.04
0.04
0.54
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
0.01
0.10
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
23 / 43
0.00 0.00 0.00 0.00 0.00 0.00
179 179 0.01 < 0.005 - 179
0.00 0.00 0.00 0.00 0.00 0.00
206
206
< 0.005
0.01
0.51
209
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
176
176
< 0.005
0.01
0.01
178
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
134
134
< 0.005
0.01
0.16
136
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
22.2
22.2
< 0.005
< 0.005
0.03
22.5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
3.19. Paving (2030) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily,
Summer
(Max)
Off-Roa
0.77
0.64
6.28
9.90
0.01
0.22
- 0.22
0.20
- 0.20
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
truck
Daily,
-
-
-
-
-
-
- -
-
- -
Winter
(Max)
Off-Roa
0.77
0.64
6.28
9.90
0.01
0.22
- 0.22
0.20
- 0.20
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
truck
Average
-
-
-
-
-
-
- -
-
- -
Daily
Off-Roa
0.55
0.46
4.49
7.07
0.01
0.16
- 0.16
0.14
- 0.14
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
truck
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,079
1,079
0.04
0.01
- 1,083
0.00 0.00 0.00 0.00 0.00 0.00
Annual
24 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Off-Roa 0.10
0.08
0.82
1.29
< 0.005
0.03
-
0.03
0.03
-
0.03 -
Equipment
Paving 0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Worker 0.06
0.05
0.05
1.01
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily, -
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker 0.05
0.04
0.05
0.57
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average -
-
-
-
-
-
-
-
-
-
- -
Daily
Worker 0.04
0.03
0.04
0.51
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
Worker 0.01
0.01
0.01
0.09
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.21. Paving (2031)
- Unmitigated
Criteria Pollutants (lb/day for
daily, ton/yr
for annual)
and
GHGs (lb/day for daily, MT/yr for annual)
25 / 43
179 179 0.01 < 0.005 - 179
0.00 0.00 0.00 0.00 0.00 0.00
202
202
< 0.005
0.01
0.45
205
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
173
173
< 0.005
0.01
0.01
175
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
132
132
< 0.005
0.01
0.14
133
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21.8
21.8
< 0.005
< 0.005
0.02
22.1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Onsite
Daily,
Summer
(Max)
Off-Roa
0.75
0.63
6.13
9.88
0.01
0.21
- 0.21
0.19 -
0.19 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
- -
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00 0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
- -
- -
- -
Winter
(Max)
Off-Roa
0.75
0.63
6.13
9.88
0.01
0.21
- 0.21
0.19 -
0.19 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
- -
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00 0.00
0.00 -
truck
Average
-
-
-
-
-
-
- -
- -
- -
Daily
Off-Roa
0.17
0.14
1.38
2.22
< 0.005
0.05
- 0.05
0.04 -
0.04 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
- -
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00 0.00
0.00 -
truck
Annual
-
-
-
-
-
-
- -
- -
- -
Off-Roa
0.03
0.03
0.25
0.41
< 0.005
0.01
- 0.01
0.01 -
0.01 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
- -
- -
26 / 43
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00 0.00
0.00
340
340
0.01
< 0.005 -
341
0.00
0.00
0.00
0.00 0.00
0.00
56.3
56.3
< 0.005
< 0.005 -
56.5
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.05
0.05
0.04
0.94
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.05
0.04
0.04
0.53
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
0.01
0.01
0.15
0.00
0.00
0.04
0.04
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.03
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.23. Architectural Coating (2028) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - -
0.00
0.00
0.00
0.00
0.00
0.00
199
199
< 0.005
0.01
0.41
202
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
170
170
< 0.005
0.01
0.01
172
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
40.8
40.8
< 0.005
< 0.005
0.04
41.4
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6.76
6.76
< 0.005
< 0.005
0.01
6.85
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
27 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Daily, -
-
-
-
-
-
- -
-
- - -
-
-
-
- -
-
Summer
(Max)
Off-Roa 0.13
0.11
0.81
1.12
< 0.005
0.02
- 0.02
0.01
- 0.01 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 0.42
0.42
-
-
-
-
- -
-
- - -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Daily, -
-
-
-
-
-
- -
-
- -
- -
-
Winter
(Max)
Off-Roa 0.13
0.11
0.81
1.12
< 0.005
0.02
- 0.02
0.01
- 0.01 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 0.42
0.42
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average
- -
-
Daily
Off-Roa 0.09
0.07
0.55
0.76
< 0.005
0.01
- 0.01
0.01
- 0.01 -
90.1
90.1
< 0.005
< 0.005 -
90.5
d
Equipm
ent
Architect 0.28
0.28
-
-
-
-
- -
-
- - -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
28 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Annual - - - - - - - - - - - -
Off-Roa 0.02 0.01 0.10 0.14 < 0.005 < 0.005 - < 0.005 < 0.005 - < 0.005 -
d
Equipm
ent
Architect 0.05 0.05
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
truck
Offsite - - - - - - - - - - - -
Daily, - - - - - - - - - - - -
Summer
(Max)
Worker
0.01
0.01
0.01
0.16
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.01
0.01
0.01
0.09
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
0.01
0.01
0.08
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
Worker
< 0.005
< 0.005
< 0.005
0.01
0.00
0.00
< 0.005
< 0.005
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
29 / 43
14.9 14.9 < 0.005 < 0.005 - 15.0
0.00 0.00 0.00 0.00 0.00 0.00
29.2
29.2
< 0.005
< 0.005
0.08
29.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
24.9
24.9
< 0.005
< 0.005
< 0.005
25.2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
17.9
17.9
< 0.005
< 0.005
0.02
18.2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.97
2.97
< 0.005
< 0.005
< 0.005
3.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
3.25. Architectural Coating (2029) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, -
-
-
-
-
-
- -
-
- - -
-
-
-
- -
-
Summer
(Max)
Off-Roa 0.12
0.10
0.79
1.11
< 0.005
0.01
- 0.01
0.01
- 0.01 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 0.42
0.42
-
-
-
-
- -
-
- - -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Daily,
Winter
(Max)
Off-Roa 0.12
0.10
0.79
1.11
< 0.005
0.01
- 0.01
0.01
- 0.01 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 0.42
0.42
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
-
- -
-
- - -
-
-
-
- -
-
Daily
Off-Roa 0.09
0.07
0.57
0.79
< 0.005
0.01
- 0.01
0.01
- 0.01 -
95.4
95.4
< 0.005
< 0.005 -
95.7
d
Equipm
ent
30 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Architect 0.30
0.30
-
-
-
-
-
-
-
-
- -
Coatings
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
Off-Roa
0.02
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect
0.05
0.05
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.01
0.01
0.01
0.15
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.01
0.01
0.01
0.09
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.01
0.01
0.01
0.08
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
31 / 43
0.00 0.00 0.00 0.00 0.00 0.00
15.8 15.8 < 0.005 < 0.005 - 15.8
0.00 0.00 0.00 0.00 0.00 0.00
28.7
28.7
< 0.005
< 0.005
0.07
29.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
24.4
24.4
< 0.005
< 0.005
< 0.005
24.7
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
18.6
18.6
< 0.005
< 0.005
0.02
18.9
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Worker < 0.005 < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 0.00
< 0.005 < 0.005 -
3.09
3.09
< 0.005
< 0.005
< 0.005 3.13
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00
0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00
0.00 0.00
3.27. Architectural Coating (2030) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - -
- - -
-
-
-
-
- -
Daily, - - - - - - - - -
- - -
-
-
-
-
- -
Summer
(Max)
Off-Roa 0.12 0.10 0.78 1.11 < 0.005 0.01 - 0.01 0.01
- 0.01 -
134
134
0.01
< 0.005
- 134
d
Equipm
ent
Architect 0.42 0.42 - - - - - - -
- - -
-
-
-
-
- -
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00
0.00 0.00
truck
Daily,
Winter
(Max)
Off-Roa 0.12 0.10 0.78 1.11 < 0.005 0.01 - 0.01 0.01
- 0.01 -
134
134
0.01
< 0.005
- 134
d
Equipm
ent
Architect 0.42 0.42
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00
0.00 0.00
truck
32 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.09
0.07
0.56
0.79
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Architect
0.30
0.30
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
Off-Roa
0.02
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect
0.05
0.05
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.01
0.01
0.01
0.14
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.01
0.01
0.01
0.08
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
33 / 43
95.4 95.4 < 0.005 < 0.005 - 95.7
0.00
0.00
0.00
0.00 0.00
0.00
15.8
15.8
< 0.005
< 0.005 -
15.8
0.00 0.00 0.00 0.00 0.00 0.00
28.2
28.2
< 0.005
< 0.005
0.06
28.5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
24.0 24.0 < 0.005 < 0.005 < 0.005 24.3
0.00 0.00 0.00 0.00 0.00 0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
< 0.005
< 0.005
0.01
0.07
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.01
0.00
0.00
< 0.005
< 0.005
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.29. Architectural Coating (2031) - Unmitigated
0.00
0.00
0.00
0.00
0.00
0.00
18.3
18.3
< 0.005
< 0.005
0.02
18.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3.03
3.03
< 0.005
< 0.005
< 0.005
3.07
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Off-Roa 0.12 0.10 0.78 1.10 < 0.005 0.01 - 0.01 0.01 - 0.01 - 134 134 0.01 < 0.005 - 134
d
Equipm
ent
Architect 0.42 0.42 - - - - - - - - -
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Daily, - - - - - - - - - - -
Winter
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
34 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Off-Roa 0.12
0.10
0.78
1.10
< 0.005
0.01
-
0.01
0.01
-
0.01 -
134
134
0.01
< 0.005
-
134
d
Equipm
Architect 0.42
0.42
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Average -
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Off-Roa 0.03
0.02
0.17
0.25
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
30.0
30.0
< 0.005
< 0.005
-
30.2
d
Equipm
ent
Architect 0.09
0.09
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Annual
Off-Roa < 0.005
< 0.005
0.03
0.05
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
4.97
4.97
< 0.005
< 0.005
-
4.99
d
Equipm
ent
Architect 0.02
0.02
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite -
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Worker 0.01
0.01
0.01
0.13
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
27.7
27.7
< 0.005
< 0.005
0.06
28.1
35 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Winter
(Max)
Worker
0.01
0.01
0.01
0.07
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
23.7
23.7
< 0.005
< 0.005
< 0.005
24.0
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
Daily
Worker
< 0.005
< 0.005
< 0.005
0.02
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
5.68
5.68
< 0.005
< 0.005
0.01
5.76
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Worker
< 0.005
< 0.005
< 0.005
< 0.005
0.00
0.00
< 0.005
< 0.005
0.00
< 0.005
< 0.005 -
0.94
0.94
< 0.005
< 0.005
< 0.005
0.95
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
4. Operations Emissions Details
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Total - - - - - - - -
36 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Daily, — — — — — — — — — — — — — — — — — —
Winter
(Max)
Total — — — — — — — — — — — — — —
Annual — — — —
Total — — —
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
EMEMEMEMEMEEMEMOMMI
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total — — — — — — — — — — — — — —
Daily, — — — — — — — — — — — — — — —
Winter
(Max)
Total — — — — — — — — — — — — — — — — — —
Annual— — — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — — —
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — — — — — — — — — — — —
Summer
(Max)
Avoided — — — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — — —
Sequest — — — — — — — — — — — — — — — — — —
ered
37 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Subtotal
Remove
d
Subtotal
Daily,
Winter
(Max)
Avoided
Subtotal
Sequest
ered
Subtotal
Remove
d
Subtotal
Annual — — — —
Avoided — — — —
Subtotal — — — —
Sequest — — — —
ered
Subtotal — — — —
Remove — — — —
d
Subtotal
5. Activity Data
38 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
5.1. Construction Schedule
Demolition
Demolition
Grading
Grading
Building Construction
Building Construction
Paving
Paving
Architectural Coating
Architectural Coating
5.2. Off -Road Equipment
5.2.1. Unmitigated
Demolition
Concrete/Industrial
Diesel
Saws
Demolition
Excavators
Diesel
Demolition
Rubber Tired Dozers
Diesel
Grading
Excavators
Diesel
Grading
Graders
Diesel
Grading
Rubber Tired Dozers
Diesel
Grading
Tractors/Loaders/Back
Diesel
hoes
Building Construction
Cranes
Diesel
Building Construction
Forklifts
Diesel
Building Construction
Generator Sets
Diesel
Building Construction
Tractors/Loaders/Back
Diesel
hoes
Building Construction
Welders
Diesel
Paving
Pavers
Diesel
Paving
Paving Equipment
Diesel
11 /1 /2027
12/10/2027
5.00
30.0 -
12/11 /2027
1 /21 /2028
5.00
30.0 -
1 /22/2028
4/25/2031
5.00
850 -
1 /22/2028
4/25/2031
5.00
850 -
1 /22/2028
4/25/2031
5.00
850 -
Average
1.00
8.00
33.0
0.73
Average
3.00
8.00
36.0
0.38
Average
2.00
8.00
367
0.40
Average
1.00
8.00
36.0
0.38
Average
1.00
8.00
148
0.41
Average
1.00
8.00
367
0.40
Average
3.00
8.00
84.0
0.37
Average
1.00
7.00
367
0.29
Average
3.00
8.00
82.0
0.20
Average
1.00
8.00
14.0
0.74
Average
3.00
7.00
84.0
0.37
Average
1.00
8.00
46.0
0.45
Average
2.00
8.00
81.0
0.42
Average
2.00
8.00
89.0
0.36
39 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Paving Rollers Diesel Average 2.00 8.00 36.0 0.38
Architectural Coating Air Compressors Diesel Average 1.00 6.00 37.0 0.48
5.3. Construction Vehicles
5.3.1. Unmitigated
Grading
Grading
Worker
15.0
18.5
LDA,LDT1,LDT2
Grading
Vendor
—
10.2
HHDT,MHDT
Grading
Hauling
0.00
20.0
HHDT
Grading
Onsite truck
—
—
HHDT
Building Construction
—
—
—
—
Building Construction
Worker
10.4
18.5
LDA,LDT1,LDT2
Building Construction
Vendor
3.10
10.2
HHDT,MHDT
Building Construction
Hauling
0.00
20.0
HHDT
Building Construction
Onsite truck
—
—
HHDT
Paving
—
—
—
—
Paving
Worker
15.0
18.5
LDA,LDT1,LDT2
Paving
Vendor
—
10.2
HHDT,MHDT
Paving
Hauling
0.00
20.0
HHDT
Paving
Onsite truck
—
—
HHDT
Architectural Coating
—
—
—
—
Architectural Coating
Worker
2.09
18.5
LDA,LDT1,LDT2
Architectural Coating
Vendor
—
10.2
HHDT,MHDT
Architectural Coating
Hauling
0.00
20.0
HHDT
Architectural Coating
Onsite truck
—
—
HHDT
Demolition
—
—
—
—
40/43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Demolition Worker 15.0 18.5 LDA,LDT1,LDT2
Demolition Vendor — 10.2 HHDT,MHDT
Demolition Hauling 34.9 20.0 HHDT
Demolition Onsite truck — — HHDT
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
Water unpaved roads twice daily 55%
Limit vehicle speeds on unpaved roads to 25 mph 44%
Sweep paved roads once per month 9%
5.5. Architectural Coatings
Architectural Coating 114,514 38,171
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
Demolition 0.00 0.00
Grading — —
Paving 0.00 0.00
5.6.2. Construction Earthmoving Control Strategies
55%
44%
9%
0.00 0.00
0.00
91,045 —
30.0
0.00 —
0.00
0.00 0.32
41 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
Water Exposed Area 3 74% 74%
Water Demolished Area 2 36% 36%
5.7. Construction Paving
Single Family Housing
h1I CYI
5.8. Construction Electricity Consumption and Emissions Factors
kWh per Year and Emission Factor (lb/MWh)
0%
2027
0.00
457
0.03
< 0.005
2028
0.00
457
0.03
< 0.005
2029
0.00
457
0.03
< 0.005
2030
0.00
457
0.03
< 0.005
2031
0.00
457
0.03
< 0.005
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
42 / 43
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 2) Custom Report, 7/17/2025
5.18.2. Sequestration
5.18.2.1. Unmitigated
8. User Changes to Default Data
Land Use
Construction: Construction Phases
Planning Area 2 includes 29 single family homes.
Assumed 10% of land use is landscaped.
Construction estimated to take place from early 2027 to mid 2031.
Building construction, paving, and architectural coating to occur intermittently as homes are
constructed.
43/43
n-I
Proposed Project Construction
(Planning Area 6)
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
SilverRock Resort Proposed Project Construction Phase 1 (Planning
Area 6) Custom Report
Table of Contents
1. Basic Project Information
1.1. Basic Project Information
1.2. Land Use Types
1.3. User -Selected Emission Reduction Measures by Emissions Sector
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
2.2. Construction Emissions by Year, Unmitigated
3. Construction Emissions Details
3.1. Grading (2027) - Unmitigated
3.3. Building Construction (2027) - Unmitigated
3.5. Building Construction (2028) - Unmitigated
3.7. Building Construction (2029) - Unmitigated
3.9. Paving (2027) - Unmitigated
3.11. Paving (2028) - Unmitigated
1 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
3.13. Paving (2029) - Unmitigated
3.15. Architectural Coating (2027) - Unmitigated
3.17. Architectural Coating (2028) - Unmitigated
3.19. Architectural Coating (2029) - Unmitigated
4. Operations Emissions Details
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
5. Activity Data
5.1. Construction Schedule
5.2. Off -Road Equipment
5.2.1. Unmitigated
5.3. Construction Vehicles
5.3.1. Unmitigated
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
5.5. Architectural Coatings
2/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
5.6.2. Construction Earthmoving Control Strategies
5.7. Construction Paving
5.8. Construction Electricity Consumption and Emissions Factors
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
5.18.2.1. Unmitigated
8. User Changes to Default Data
3/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
1. Basic Project Information
1.1. Basic Project Information
Project Name
Construction Start Date
Lead Agency
Land Use Scale
Analysis Level for Defaults
Windspeed (m/s)
Precipitation (days)
Location
County
City
Air District
Air Basin
TAZ
EDFZ
Electric Utility
Gas Utility
App Version
1.2. Land Use Types
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6)
1 / 1 /2027
Project/site
County
3.00
7.60
33.672095298053605,-116.2796035818008
Riverside -Salton Sea
La Quinta
South Coast AQMD
Salton Sea
5651
19
Imperial Irrigation District
Southern California Gas
2022.1.1.29
Condo/Townhouse 70.0 Dwelling Unit 4.38 74,200 7,420 —
226
4/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
1.3. User -Selected Emission Reduction Measures by Emissions Sector
No measures selected
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, - - - - - - - - - - - -
Summer
(Max)
Unmit. 3.22 2.82 16.9 29.6 0.04 0.60 1.12 1.72 0.55 0.26 0.82 -
Daily,
Winter
(Max)
Unmit. 3.16 2.77 16.9 26.8 0.04 0.60 2.04 2.64 0.55 0.94 1.49 -
Average - - - - - - - - - - - -
Daily
(Max)
Unmit. 2.17 1.92 11.6 19.6 0.03 0.42 0.85 1.27 0.39 0.24 0.63 -
Annual
(Max)
Unmit. 0.40 0.35 2.12 3.57 0.01 0.08 0.16 0.23 0.07 0.04 0.11 -
Exceeds
(Daily
Max)
Threshol - 75.0 100 550 150 - - 150 - - 55.0 -
d
Unmit. - No No No No - - No - - No -
Exceeds - - - - - - - - - - - -
(Average
Daily)
5,255 5,255 0.17 0.10 3.94 5,293
5,085 5,085 0.17 0.10 0.10 5,119
3,673
3,673
0.12
0.07
1.10
3,698
608
608
0.02
0.01
0.18
612
5/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Threshol -
75.0
100
550
150 - -
150
-
-
55.0 -
d
Unmit. -
No
No
No
No - -
No
-
-
No -
2.2. Construction Emissions by
Year, Unmitigated
Criteria Pollutants (lb/day for
daily, ton/yr
for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily - -
-
-
-
- - -
-
-
-
- -
Summer
(Max)
2027 3.22
2.82
16.9
29.6
0.04 0.60 1.12
1.72
0.55
0.26
0.82 -
2028 3.10
2.73
16.1
29.2
0.04 0.53 1.12
1.65
0.49
0.26
0.75 -
2029 3.00
2.67
15.6
28.7
0.04 0.49 1.12
1.61
0.45
0.26
0.71 -
Daily - -
-
-
-
- - -
-
-
-
- -
Winter
(Max)
2027 3.16
2.77
16.9
26.8
0.04 0.60 2.04
2.64
0.55
0.94
1.49 -
2028 3.02
2.67
16.2
26.4
0.04 0.53 1.12
1.65
0.49
0.26
0.75 -
2029 2.96
2.58
15.6
26.2
0.04 0.49 1.12
1.61
0.45
0.26
0.71 -
Average -
-
-
-
- - -
-
-
-
- -
Daily
2027 2.12
1.86
11.6
18.6
0.03 0.42 0.85
1.27
0.39
0.24
0.63 -
2028 2.17
1.92
11.5
19.6
0.03 0.38 0.80
1.17
0.35
0.19
0.54 -
2029 1.73
1.54
9.10
15.7
0.02 0.29 0.65
0.93
0.26
0.15
0.42 -
Annual -
-
-
-
- - -
-
-
-
- -
2027 0.39
0.34
2.12
3.40
< 0.005 0.08 0.16
0.23
0.07
0.04
0.11 -
2028 0.40
0.35
2.11
3.57
0.01 0.07 0.15
0.21
0.06
0.03
0.10 -
2029 0.32
0.28
1.66
2.87
< 0.005 0.05 0.12
0.17
0.05
0.03
0.08 -
5,255
5,255
0.17
0.10
3.94
5,293
5,228
5,228
0.17
0.10
3.56
5,266
5,201
5,201
0.17
0.10
3.21
5,238
5,085
5,085
0.17
0.10
0.10
5,119
5,062
5,062
0.17
0.10
0.09
5,096
5,038
5,038
0.17
0.10
0.08
5,072
3,445
3,445
0.12
0.06
1.08
3,468
3,673
3,673
0.12
0.07
1.10
3,698
2,976
2,976
0.10
0.06
0.81
2,996
570
570
0.02
0.01
0.18
574
608
608
0.02
0.01
0.18
612
493
493
0.02
0.01
0.13
496
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SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
3. Construction Emissions Details
3.1. Grading (2027) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Summer
(Max)
Daily, -
-
-
-
-
- -
-
-
Winter
(Max)
Off-Roa 1.89
1.59
14.2
17.3
0.03
0.60
-
0.60
0.55
-
0.55 -
2,960
2,960
0.12
0.02 -
2,970
d
Equipm
ent
Dust -
-
-
-
-
-
1.84
1.84
-
0.89
0.89 -
-
-
-
- -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
-
-
-
-
-
- -
-
-
-
- -
-
Daily
Off-Roa 0.16
0.13
1.17
1.42
< 0.005
0.05
-
0.05
0.05
-
0.05 -
243
243
0.01
< 0.005 -
244
d
Equipm
ent
Dust -
-
-
-
-
-
0.15
0.15
-
0.07
0.07 -
-
-
-
- -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Annual
-
-
-
-
-
-
-
- -
-
-
-
- -
-
7/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Off-Roa
0.03
0.02
0.21
0.26
< 0.005
0.01
-
0.01
0.01
-
0.01 -
Equipment
Dust
-
-
-
-
-
-
0.03
0.03
-
0.01
0.01 -
From
Material
Movement
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.06
0.05
0.07
0.70
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
< 0.005
0.01
0.07
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.01
0.00
0.00
< 0.005
< 0.005
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.3. Building Construction (2027) - Unmitigated
40.3 40.3 < 0.005 < 0.005 - 40.4
0.00 0.00 0.00 0.00 0.00 0.00
182
182
< 0.005
0.01
0.02
184
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16.0
16.0
< 0.005
< 0.005
0.02
16.2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.65
2.65
< 0.005
< 0.005
< 0.005
2.68
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - -
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SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Off-Roa
1.23
1.03
9.39
12.9
0.02
0.34
-
0.34
0.31
-
0.31 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
1.23
1.03
9.39
12.9
0.02
0.34
-
0.34
0.31
-
0.31 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.76
0.64
5.81
8.00
0.01
0.21
-
0.21
0.19
-
0.19 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.14
0.12
1.06
1.46
< 0.005
0.04
-
0.04
0.03
-
0.03 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,482
1,482
0.06
0.01
- 1,487
0.00
0.00
0.00
0.00 0.00
0.00
245
245
0.01
< 0.005 -
246
0.00 0.00 0.00 0.00 0.00 0.00
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SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Worker
0.24
0.22
0.22
4.15
0.00
0.00
0.66
0.66
0.00
0.15
0.15 -
Vendor
0.01
0.01
0.23
0.10
< 0.005
< 0.005
0.06
0.07
< 0.005
0.02
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.21
0.18
0.24
2.36
0.00
0.00
0.66
0.66
0.00
0.15
0.15 -
Vendor
0.01
0.01
0.25
0.10
< 0.005
< 0.005
0.06
0.07
< 0.005
0.02
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.13
0.12
0.13
1.83
0.00
0.00
0.41
0.41
0.00
0.09
0.09 -
Vendor
0.01
0.01
0.15
0.06
< 0.005
< 0.005
0.04
0.04
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.02
0.02
0.02
0.33
0.00
0.00
0.07
0.07
0.00
0.02
0.02 -
Vendor
< 0.005
< 0.005
0.03
0.01
< 0.005
< 0.005
0.01
0.01
< 0.005
< 0.005
< 0.005 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.5. Building Construction (2028) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily,
Summer
(Max)
Off-Roa 1.18 0.99 8.92 12.9 0.02 0.30 - 0.30 0.28 - 0.28
d
Equipm
ent
718
718
0.01
0.02
2.12
728
227
227
< 0.005
0.03
0.56
237
0.00
0.00
0.00
0.00
0.00
0.00
612
612
0.01
0.02
0.05
619
228
228
< 0.005
0.03
0.01
237
0.00
0.00
0.00
0.00
0.00
0.00
404
404
< 0.005
0.01
0.57
409
141
141
< 0.005
0.02
0.15
146
0.00
0.00
0.00
0.00
0.00
0.00
66.9
66.9
< 0.005
< 0.005
0.09
67.8
23.3
23.3
< 0.005
< 0.005
0.02
24.2
0.00
0.00
0.00
0.00
0.00
0.00
2,397 2,397 0.10 0.02 - 2,406
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SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
1.18
0.99
8.92
12.9
0.02
0.30
-
0.30
0.28
-
0.28 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.85
0.71
6.39
9.26
0.02
0.22
-
0.22
0.20
-
0.20 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.15
0.13
1.17
1.69
< 0.005
0.04
-
0.04
0.04
-
0.04 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.23
0.21
0.20
3.88
0.00
0.00
0.66
0.66
0.00
0.15
0.15 -
Vendor
0.01
0.01
0.22
0.09
< 0.005
< 0.005
0.06
0.07
< 0.005
0.02
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,406
0.00
0.00
0.00
0.00
0.00 0.00
1,717
1,717
0.07
0.01
- 1,723
0.00
0.00
0.00
0.00 0.00
0.00
284
284
0.01
< 0.005 -
285
0.00 0.00 0.00 0.00 0.00 0.00
705
705
0.01
0.02
1.90
714
222
222
< 0.005
0.03
0.52
231
0.00
0.00
0.00
0.00
0.00
0.00
11 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Worker
0.18
0.17
0.22
2.19
0.00
0.00
0.66
0.66
0.00
0.15
0.15 -
Vendor
0.01
0.01
0.24
0.10
< 0.005
< 0.005
0.06
0.07
< 0.005
0.02
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.13
0.13
0.14
1.97
0.00
0.00
0.47
0.47
0.00
0.11
0.11 -
Vendor
0.01
< 0.005
0.16
0.07
< 0.005
< 0.005
0.05
0.05
< 0.005
0.01
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.02
0.02
0.03
0.36
0.00
0.00
0.09
0.09
0.00
0.02
0.02 -
Vendor
< 0.005
< 0.005
0.03
0.01
< 0.005
< 0.005
0.01
0.01
< 0.005
< 0.005
< 0.005 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.7. Building Construction (2029) - Unmitigated
600
600
0.01
0.02
0.05
608
222
222
< 0.005
0.03
0.01
231
0.00
0.00
0.00
0.00
0.00
0.00
459
459
0.01
0.02
0.59
465
159
159
< 0.005
0.02
0.16
166
0.00
0.00
0.00
0.00
0.00
0.00
76.1
76.1
< 0.005
< 0.005
0.10
77.0
26.3
26.3
< 0.005
< 0.005
0.03
27.4
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Off-Roa 1.15 0.97 8.58 12.9 0.02 0.28 - 0.28 0.25 - 0.25
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Daily, - - - - - - - - - - -
Winter
(Max)
2,397 2,397 0.10 0.02 - 2,405
12/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Off-Roa
1.15
0.97
8.58
12.9
0.02
0.28
-
0.28
0.25
-
0.25 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.67
0.56
5.00
7.52
0.01
0.16
-
0.16
0.15
-
0.15 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
- -
Off-Roa
0.12
0.10
0.91
1.37
< 0.005
0.03
-
0.03
0.03
-
0.03 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Worker
0.20
0.20
0.17
3.62
0.00
0.00
0.66
0.66
0.00
0.15
0.15 -
Vendor
0.01
0.01
0.21
0.09
< 0.005
< 0.005
0.06
0.07
< 0.005
0.02
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.17
0.14
0.19
2.06
0.00
0.00
0.66
0.66
0.00
0.15
0.15 -
Vendor
0.01
0.01
0.23
0.09
< 0.005
< 0.005
0.06
0.07
< 0.005
0.02
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,398
1,398
0.06
0.01
- 1,403
0.00
0.00
0.00
0.00 0.00
0.00
231
231
0.01
< 0.005 -
232
0.00 0.00 0.00 0.00 0.00 0.00
692
692
0.01
0.02
1.71
701
216
216
< 0.005
0.03
0.48
225
0.00
0.00
0.00
0.00
0.00
0.00
590
590
0.01
0.02
0.04
597
216
216
< 0.005
0.03
0.01
225
0.00
0.00
0.00
0.00
0.00
0.00
13/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Average
Daily
Worker
0.10
0.10
0.10
1.49
0.00
0.00
0.38
0.38
0.00
0.09
0.09 -
Vendor
0.01
< 0.005
0.13
0.05
< 0.005
< 0.005
0.04
0.04
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.02
0.02
0.02
0.27
0.00
0.00
0.07
0.07
0.00
0.02
0.02 -
Vendor
< 0.005
< 0.005
0.02
0.01
< 0.005
< 0.005
0.01
0.01
< 0.005
< 0.005
< 0.005 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.9. Paving (2027) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily,
Summer
(Max)
Off-Roa 0.79 0.66 6.09 8.83 0.01 0.24 - 0.24 0.22 - 0.22
d
Equipm
ent
Paving 0.00 0.00 - - - - - - - - -
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Daily, - - - - - - - - - - -
Winter
(Max)
367
367
< 0.005
0.01
0.43
372
126
126
< 0.005
0.02
0.12
131
0.00
0.00
0.00
0.00
0.00
0.00
60.8
60.8
< 0.005
< 0.005
0.07
61.6
20.9
20.9
< 0.005
< 0.005
0.02
21.7
0.00
0.00
0.00
0.00
0.00
0.00
1,350 1,350 0.05 0.01 - 1,355
0.00 0.00 0.00 0.00 0.00 0.00
Off-Roa 0.79 0.66 6.09 8.83 0.01 0.24 - 0.24 0.22 - 0.22 - 1,350 1,350 0.05 0.01 - 1,355
d
Equipm
ent
Paving 0.00 0.00 - - - - - - -
14/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.49
0.41
3.76
5.46
0.01
0.15
-
0.15
0.14
-
0.14 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.09
0.07
0.69
1.00
< 0.005
0.03
-
0.03
0.03
-
0.03 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.10
0.09
0.09
1.65
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
Winter
(Max)
Worker
0.08
0.07
0.09
0.94
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
0.00
0.00
0.00
0.00
0.00 0.00
835
835
0.03
0.01
- 838
0.00
0.00
0.00
0.00 0.00
0.00
138
138
0.01
< 0.005 -
139
0.00 0.00 0.00 0.00 0.00 0.00
285
285
< 0.005
0.01
0.84
289
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
243
243
< 0.005
0.01
0.02
246
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
15/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Worker
0.05
0.05
0.05
0.72
0.00
0.00
0.16
0.16
0.00
0.04
0.04 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
0.01
0.13
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.11. Paving (2028) - Unmitigated
160
160
< 0.005
0.01
0.22
162
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26.6
26.6
< 0.005
< 0.005
0.04
26.9
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Off-Roa
0.75
0.63
5.85
8.80
0.01
0.21
- 0.21
0.19
- 0.19 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.75
0.63
5.85
8.80
0.01
0.21
- 0.21
0.19
- 0.19 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
1,350 1,350 0.05 0.01 - 1,355
0.00 0.00 0.00 0.00 0.00 0.00
1,350 1,350 0.05 0.01 - 1,355
0.00 0.00 0.00 0.00 0.00 0.00
16/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.53
0.45
4.19
6.30
0.01
0.15
-
0.15
0.14
-
0.14 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.10
0.08
0.76
1.15
< 0.005
0.03
-
0.03
0.03
-
0.03 -
d
Equipm
ent
Paving
0.00
0.00
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.09
0.08
0.08
1.54
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.07
0.07
0.09
0.87
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.05
0.05
0.06
0.78
0.00
0.00
0.19
0.19
0.00
0.04
0.04 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
17/33
967 967 0.04 0.01 - 970
0.00 0.00 0.00 0.00 0.00 0.00
160 160 0.01 < 0.005 - 161
0.00 0.00 0.00 0.00 0.00 0.00
280
280
< 0.005
0.01
0.76
283
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
238
238
< 0.005
0.01
0.02
241
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
182
182
< 0.005
0.01
0.23
185
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Hauling 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual- -
- - - - - - - - - -
-
-
-
-
-
-
Worker 0.01 0.01
0.01 0.14 0.00 0.00 0.03 0.03 0.00 0.01 0.01 -
30.2
30.2
< 0.005
< 0.005
0.04
30.6
Vendor 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.13. Paving (2029)
- Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - -
- - - - - - - - - -
-
-
-
-
-
-
Daily, - -
- - - - - - - - - -
-
-
-
-
-
-
Summer
(Max)
Off-Roa 0.74 0.62
5.73 8.81 0.01 0.20 - 0.20 0.18 - 0.18 -
1,350
1,350
0.05
0.01
-
1,354
d
Equipm
ent
Paving 0.00 0.00
- - - - - - - - - -
-
-
-
-
-
-
Onsite 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Daily, - -
- - - - - - - - - -
-
-
-
-
-
-
Winter
(Max)
Off-Roa 0.74 0.62
5.73 8.81 0.01 0.20 - 0.20 0.18 - 0.18 -
1,350
1,350
0.05
0.01
-
1,354
d
Equipm
ent
Paving 0.00 0.00
- - - - - - - - - -
-
-
-
-
-
-
Onsite 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Average - -
- - - - - - - - - -
-
-
-
-
-
-
Daily
18/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Off-Roa
0.43
0.36
3.34
5.14
0.01
0.12
-
0.12
0.11
-
0.11 -
d
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
Off-Roa
0.08
0.07
0.61
0.94
< 0.005
0.02
-
0.02
0.02
-
0.02 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.08
0.08
0.07
1.43
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.07
0.06
0.08
0.82
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.04
0.04
0.04
0.59
0.00
0.00
0.15
0.15
0.00
0.04
0.04 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
19/33
787 787 0.03 0.01 - 790
0.00 0.00 0.00 0.00 0.00 0.00
130 130 0.01 < 0.005 - 131
0.00 0.00 0.00 0.00 0.00 0.00
275
275
< 0.005
0.01
0.68
278
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
234
234
< 0.005
0.01
0.02
237
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
146
146
< 0.005
0.01
0.17
148
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Worker 0.01 0.01 0.01 0.11 0.00 0.00 0.03 0.03 0.00
0.01 0.01 -
24.1
24.1
< 0.005
< 0.005 0.03
24.4
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
3.15. Architectural Coating (2027) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - -
- - -
-
-
-
- -
-
Daily, - - - - - - - - -
- - -
-
-
-
- -
-
Summer
(Max)
Off-Roa 0.14 0.11 0.83 1.13 < 0.005 0.02 - 0.02 0.02
- 0.02 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 0.66 0.66 - - - - -
- - -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Daily,
Winter
(Max)
Off-Roa 0.14 0.11 0.83 1.13 < 0.005 0.02 - 0.02 0.02
- 0.02 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 0.66 0.66
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
20 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.08
0.07
0.51
0.70
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Architect
0.41
0.41
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
Off-Roa
0.02
0.01
0.09
0.13
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect
0.07
0.07
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.05
0.04
0.04
0.83
0.00
0.00
0.13
0.13
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.04
0.04
0.05
0.47
0.00
0.00
0.13
0.13
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
21 / 33
82.6 82.6 < 0.005 < 0.005 - 82.8
0.00
0.00
0.00
0.00 0.00
0.00
13.7
13.7
< 0.005
< 0.005 -
13.7
0.00 0.00 0.00 0.00 0.00 0.00
144
144
< 0.005
< 0.005
0.42
146
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
122 122 < 0.005 < 0.005 0.01 124
0.00 0.00 0.00 0.00 0.00 0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.03
0.02
0.03
0.37
0.00
0.00
0.08
0.08
0.00
0.02
0.02 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.07
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.17. Architectural Coating (2028) - Unmitigated
0.00
0.00
0.00
0.00
0.00
0.00
80.8
80.8
< 0.005
< 0.005
0.11
81.9
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
13.4
13.4
< 0.005
< 0.005
0.02
13.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Off-Roa 0.13 0.11 0.81 1.12 < 0.005 0.02 - 0.02 0.01 - 0.01 - 134 134 0.01 < 0.005 - 134
d
Equipm
ent
Architect 0.66 0.66 - - - - - - - - -
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Daily, - - - - - - - - - - -
Winter
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
22 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Off-Roa 0.13
0.11
0.81
1.12
< 0.005
0.02
-
0.02
0.01
-
0.01 -
134
134
0.01
< 0.005
-
134
d
Equipm
Architect 0.66
0.66
-
-
-
-
-
-
-
-
- -
-
-
-
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Average -
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Off-Roa 0.09
0.08
0.58
0.80
< 0.005
0.01
-
0.01
0.01
-
0.01 -
95.6
95.6
< 0.005
< 0.005
-
96.0
d
Equipm
ent
Architect 0.48
0.48
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Annual
Off-Roa 0.02
0.01
0.11
0.15
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
15.8
15.8
< 0.005
< 0.005
-
15.9
d
Equipm
ent
Architect 0.09
0.09
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite -
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Worker 0.05
0.04
0.04
0.78
0.00
0.00
0.13
0.13
0.00
0.03
0.03 -
141
141
< 0.005
< 0.005
0.38
143
23 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.04
0.03
0.04
0.44
0.00
0.00
0.13
0.13
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.03
0.03
0.03
0.39
0.00
0.00
0.09
0.09
0.00
0.02
0.02 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
0.01
0.07
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.19. Architectural Coating (2029) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite -
Daily,
Summer
(Max)
Off-Roa 0.12 0.10 0.79 1.11 < 0.005 0.01 -
d
Equipm
ent
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
120
120
< 0.005
< 0.005
0.01
122
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
91.9
91.9
< 0.005
< 0.005
0.12
93.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
15.2
15.2
< 0.005
< 0.005
0.02
15.4
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01 0.01 - 0.01 - 134 134 0.01 < 0.005 - 134
24/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Architect 0.66
0.66
-
-
-
- -
-
- -
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
truck
Daily, -
-
-
-
-
- -
-
- -
- -
Winter
(Max)
Off-Roa 0.12
0.10
0.79
1.11
< 0.005
0.01 -
0.01
0.01 -
0.01 -
d
Equipm
ent
Architect 0.66
0.66
-
-
-
- -
-
- -
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
truck
Average
Daily
Off-Roa 0.07
0.06
0.46
0.65
< 0.005
0.01 -
0.01
0.01 -
0.01 -
d
Equipm
ent
Architect 0.39
0.39
-
-
-
- -
-
- -
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
truck
Annual -
-
-
-
-
- -
-
- -
- -
Off-Roa 0.01
0.01
0.08
0.12
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
d
Equipm
ent
0.00 0.00 0.00 0.00 0.00 0.00
134 134 0.01 < 0.005 - 134
0.00
0.00
0.00
0.00 0.00
0.00
77.9
77.9
< 0.005
< 0.005 -
78.1
0.00
0.00
0.00
0.00 0.00
0.00
12.9
12.9
< 0.005
< 0.005 -
12.9
25 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Architect 0.07 0.07
ural
Coating
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Worker
0.04
0.04
0.03
0.72
0.00
0.00
0.13
0.13
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.03
0.03
0.04
0.41
0.00
0.00
0.13
0.13
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.02
0.02
0.02
0.30
0.00
0.00
0.08
0.08
0.00
0.02
0.02 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.05
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
4. Operations Emissions Details
4.10. Soil Carbon Accumulation By Vegetation Type
0.00 0.00 0.00 0.00 0.00 0.00
138
138
< 0.005
< 0.005
0.34
140
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
118
118
< 0.005
< 0.005
0.01
119
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
73.5
73.5
< 0.005
< 0.005
0.09
74.4
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
12.2
12.2
< 0.005
< 0.005
0.01
12.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
MWEEMOMMEMEME
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total— — — — — — — — — — — — — — — — — —
Daily, — — — — — — — — — — — — — — — — — —
Winter
(Max)
Total — — — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — — — —
Total — — — — — — —
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total — — — — — — — — — — — — — — — — — —
Daily, — — — — — — — — — — — — — — — — — —
Winter
(Max)
Total— — — — — — — — — — — — — — — — — —
Annual— — — — — — — — — — — — — — — — — —
Total— — — — — — — — — — — — — — — — — —
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
27 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Avoided
Subtotal
Sequest
ered
Subtotal
Remove
d
Subtotal
Daily,
Winter
(Max)
Avoided
Subtotal
Sequest
ered
Subtotal
Remove
d
Subtotal
Annual
Avoided
Subtotal
Sequest
ered
Subtotal — — — — — — — —
28 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Remove - - - -
Subtotal - - - -
5. Activity Data
5.1. Construction Schedule
Grading
Grading 1/1/2027
2/11/2027 5.00
30.0
-
Building Construction
Building Construction 2/19/2027
10/25/2029 5.00
700
-
Paving
Paving 2/19/2027
10/25/2029 5.00
700
-
Architectural Coating
Architectural Coating 2/19/2027
10/25/2029 5.00
700
-
5.2. Off -Road Equipment
5.2.1. Unmitigated
Equipment Type Number per Day Hours Per Day Horsepower
Grading
Excavators Diesel
Average
1.00
8.00
36.0
0.38
Grading
Graders Diesel
Average
1.00
8.00
148
0.41
Grading
Rubber Tired Dozers Diesel
Average
1.00
8.00
367
0.40
Grading
Tractors/Loaders/Back Diesel
Average
3.00
8.00
84.0
0.37
hoes
Building Construction
Cranes Diesel
Average
1.00
7.00
367
0.29
Building Construction
Forklifts Diesel
Average
3.00
8.00
82.0
0.20
Building Construction
Generator Sets Diesel
Average
1.00
8.00
14.0
0.74
Building Construction
Tractors/Loaders/Back Diesel
Average
3.00
7.00
84.0
0.37
hoes
Building Construction
Welders Diesel
Average
1.00
8.00
46.0
0.45
29 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Paving
Pavers Diesel
Average
1.00
8.00
81.0
0.42
Paving
Paving Equipment Diesel
Average
2.00
6.00
89.0
0.36
Paving
Rollers Diesel
Average
2.00
6.00
36.0
0.38
Paving
Cement and Mortar Diesel
Average
2.00
6.00
10.0
0.56
Mixers
Paving
Tractors/Loaders/Back Diesel
Average
1.00
8.00
84.0
0.37
hoes
Architectural Coating
Air Compressors Diesel
Average
1.00
6.00
37.0
0.48
5.3. Construction
Vehicles
5.3.1. Unmitigated
.-
•
per Day.
-
Grading
-
-
-
-
Grading
Worker
15.0
18.5
LDA,LDT1,LDT2
Grading
Vendor
-
10.2
HHDTMHDT
Grading
Hauling
0.00
20.0
HHDT
Grading
Onsite truck
-
-
HHDT
Building Construction
-
-
-
-
Building Construction
Worker
50.4
18.5
LDA,LDT1,LDT2
Building Construction
Vendor
7.48
10.2
HHDTMHDT
Building Construction
Hauling
0.00
20.0
HHDT
Building Construction
Onsite truck
-
-
HHDT
Paving
-
-
-
-
Paving
Worker
20.0
18.5
LDA,LDT1,LDT2
Paving
Vendor
-
10.2
HHDTMHDT
Paving
Hauling
0.00
20.0
HHDT
Paving
Onsite truck
-
-
HHDT
Architectural Coating
-
-
-
-
30 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Architectural Coating Worker 10.1 18.5 LDA,LDT1,LDT2
Architectural Coating Vendor — 10.2 HHDT,MHDT
Architectural Coating Hauling 0.00 20.0 HHDT
Architectural Coating Onsite truck — — HHDT
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
Water unpaved roads twice daily 55%
Limit vehicle speeds on unpaved roads to 25 mph 44%
Sweep paved roads once per month 9%
5.5. Architectural Coatings
Architectural Coating 150,255 50,085
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
Grading — —
Paving 0.00 0.00
5.6.2. Construction Earthmoving Control Strategies
55%
44%
9%
0.00 0.00
30.0 0.00 —
0.00 0.00 —
31 / 33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
Water Exposed Area 3 74% 74%
Water Demolished Area 2 36% 36%
5.7. Construction Paving
Condo/Townhouse
5.8. Construction Electricity Consumption and Emissions Factors
kWh per Year and Emission Factor (lb/MWh
0%
2027
0.00
457
0.03
< 0.005
2028
0.00
457
0.03
< 0.005
2029
0.00
457
0.03
< 0.005
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
32/33
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 6) Custom Report, 7/18/2025
5.18.2.1. Unmitigated
8. User Changes to Default Data
Land Use
Construction: Construction Phases Construction estimated to take place from early 2027 to October 2029.
Building construction, paving, and architectural coating to occur intermittently as condos are
constructed.
9331931
nY
Proposed Project Construction
(Planning Area 7)
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
SilverRock Resort Proposed Project Construction Phase 1 (Planning
Area 7) Custom Report
Table of Contents
1. Basic Project Information
1.1. Basic Project Information
1.2. Land Use Types
1.3. User -Selected Emission Reduction Measures by Emissions Sector
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
2.2. Construction Emissions by Year, Unmitigated
3. Construction Emissions Details
3.1. Grading (2030) - Unmitigated
3.3. Building Construction (2030) - Unmitigated
3.5. Building Construction (2031) - Unmitigated
3.7. Building Construction (2032) - Unmitigated
3.9. Building Construction (2033) - Unmitigated
3.11. Paving (2030) - Unmitigated
1 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
3.13. Paving (2031) - Unmitigated
3.15. Paving (2032) - Unmitigated
3.17. Paving (2033) - Unmitigated
3.19. Architectural Coating (2030) - Unmitigated
3.21. Architectural Coating (2031) - Unmitigated
3.23. Architectural Coating (2032) - Unmitigated
3.25. Architectural Coating (2033) - Unmitigated
4. Operations Emissions Details
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
5. Activity Data
5.1. Construction Schedule
5.2. Off -Road Equipment
5.2.1. Unmitigated
5.3. Construction Vehicles
5.3.1. Unmitigated
2/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
5.5. Architectural Coatings
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
5.6.2. Construction Earthmoving Control Strategies
5.7. Construction Paving
5.8. Construction Electricity Consumption and Emissions Factors
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
5.18.2.1. Unmitigated
8. User Changes to Default Data
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
1. Basic Project Information
1.1. Basic Project Information
Project Name
Construction Start Date
Lead Agency
Land Use Scale
Analysis Level for Defaults
Windspeed (m/s)
Precipitation (days)
Location
County
City
Air District
Air Basin
TAZ
EDFZ
Electric Utility
Gas Utility
App Version
1.2. Land Use Types
Single Family 93.0 Dwelling Unit 30.2 181,350
Housing
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7)
1 / 1 /2030
Project/site
County
3.00
7.60
33.672095298053605,-116.2796035818008
Riverside -Salton Sea
La Quinta
South Coast AQMD
Salton Sea
5651
19
Imperial Irrigation District
Southern California Gas
2022.1.1.29
18,135 —
300
4/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
1.3. User -Selected Emission Reduction Measures by Emissions Sector
No measures selected
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, - - - - - - - - - - - -
Summer
(Max)
Unmit. 3.63 3.28 15.9 27.7 0.04 0.50 0.81 1.30 0.46 0.19 0.65 -
Daily,
Winter
(Max)
Unmit. 3.60 3.24 21.7 27.6 0.06 0.88 2.65 3.54 0.81 1.01 1.83 -
Average - - - - - - - - - - - -
Daily
(Max)
Unmit. 2.54 2.29 12.1 19.2 0.03 0.40 0.80 1.20 0.37 0.24 0.61 -
Annual
(Max)
Unmit. 0.46 0.42 2.21 3.50 0.01 0.07 0.15 0.22 0.07 0.04 0.11 -
Exceeds
(Daily
Max)
Threshol - 75.0 100 550 150 - - 150 - - 55.0 -
d
Unmit. - No No No No - - No - - No -
Exceeds - - - - - - - - - - - -
(Average
Daily)
5,065 5,065 0.17 0.10 2.25 5,100
6,826 6,826 0.27 0.10 0.06 6,852
3,798
3,798
0.14
0.07
0.62
3,821
629
629
0.02
0.01
0.10
633
5/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Threshol
-
75.0
100
550
150
-
-
150
-
-
55.0 -
d
Unmit.
-
No
No
No
No
-
-
No
-
-
No -
2.2. Construction Emissions by
Year,
Unmitigated
Criteria
Pollutants (lb/day for
daily, ton/yr
for annual)
and GHGs (lb/day for daily, MT/yr for annual)
Daily -
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
2030
3.63
3.28
15.9
27.7
0.04
0.50
0.81
1.30
0.46
0.19
0.65 -
2031
3.57
3.22
15.4
27.4
0.04
0.47
0.81
1.27
0.43
0.19
0.62 -
2032
3.51
3.17
15.0
27.1
0.04
0.44
0.81
1.24
0.40
0.19
0.59 -
2033
3.45
3.12
14.7
26.9
0.04
0.40
0.81
1.20
0.37
0.19
0.56 -
Daily -
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
2030
3.60
3.24
21.7
27.6
0.06
0.88
2.65
3.54
0.81
1.01
1.83 -
2031
3.54
3.19
15.5
25.9
0.04
0.47
0.81
1.27
0.43
0.19
0.62 -
2032
3.48
3.14
15.1
25.7
0.04
0.44
0.81
1.24
0.40
0.19
0.59 -
2033
3.41
3.10
14.8
25.6
0.04
0.40
0.81
1.20
0.37
0.19
0.56 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
2030
2.54
2.26
12.1
19.2
0.03
0.40
0.80
1.20
0.37
0.24
0.61 -
2031
2.53
2.29
11.0
18.9
0.03
0.33
0.57
0.91
0.31
0.14
0.44 -
2032
2.50
2.26
10.8
18.7
0.03
0.31
0.57
0.89
0.29
0.14
0.42 -
2033
0.67
0.61
2.91
5.14
0.01
0.08
0.16
0.24
0.07
0.04
0.11 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
2030
0.46
0.41
2.21
3.50
0.01
0.07
0.15
0.22
0.07
0.04
0.11 -
2031
0.46
0.42
2.02
3.44
0.01
0.06
0.10
0.17
0.06
0.02
0.08 -
6/39
5,065
5,065
0.17
0.10
2.25
5,100
5,044
5,044
0.17
0.10
2.02
5,080
5,026
5,026
0.17
0.07
1.80
5,054
5,009
5,009
0.17
0.07
1.60
5,036
6,826
6,826
0.27
0.10
0.06
6,852
4,937
4,937
0.17
0.10
0.05
4,970
4,921
4,921
0.17
0.09
0.05
4,953
4,905
4,905
0.17
0.09
0.04
4,937
3,798
3,798
0.14
0.06
0.61
3,821
3,557
3,557
0.12
0.07
0.62
3,581
3,554
3,554
0.12
0.07
0.56
3,578
978
978
0.03
0.01
0.14
983
629
629
0.02
0.01
0.10
633
589
589
0.02
0.01
0.10
593
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
2032 0.46 0.41
1.97 3.42 0.01 0.06
0.10 0.16
0.05 0.03 0.08 - 588 588 0.02 0.01 0.09 592
2033 0.12 0.11
0.53 0.94 < 0.005 0.01
0.03 0.04
0.01 0.01 0.02 - 162 162 0.01 < 0.005 0.02 163
3. Construction
Emissions Details
3.1. Grading (2030)
- Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and
GHGs (lb/day for daily, MT/yr for annual)
Onsite - -
- - - -
- -
- - - - - - - - - -
Daily, - -
- - - -
- -
- - - - - - - - - -
Summer
(Max)
Daily,
- -
- - - - - - - - - -
Winter
(Max)
Off-Roa 3.23 2.72
21.7 26.9 0.06 0.88
- 0.88
0.81 - 0.81 - 6,596 6,596 0.27 0.05 - 6,619
d
Equipm
ent
Dust - -
- -
2.39 2.39
- 0.95 0.95 - - - -
From
Material
Movement
Onsite 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00
0.00 0.00 0.00 - 0.00 0.00 0.00 0.00 0.00 0.00
truck
Average - -
- - - -
- -
- - - - - - - - - -
Daily
Off-Roa 0.40 0.34
2.67 3.31 0.01 0.11
- 0.11
0.10 - 0.10 - 813 813 0.03 0.01 - 816
d
Equipm
ent
Dust - -
- - - -
0.30 0.30
- 0.12 0.12 - - - - - -
From
Material
Movement
7/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.07
0.06
0.49
0.60
< 0.005
0.02
-
0.02
0.02
-
0.02 -
d
Equipm
ent
Dust
-
-
-
-
-
-
0.05
0.05
-
0.02
0.02
From
Material
Movement
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.06
0.06
0.07
0.76
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
0.01
0.01
0.12
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
Worker
< 0.005
< 0.005
< 0.005
0.02
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
135
135
0.01
< 0.005 -
135
0.00 0.00 0.00 0.00 0.00 0.00
230
230
< 0.005
0.01
0.02
233
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
30.3
30.3
< 0.005
< 0.005
0.03
30.7
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
5.02
5.02
< 0.005
< 0.005
0.01
5.08
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
8/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
3.3. Building Construction (2030) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily,
-
-
-
-
-
-
- -
-
- - -
Summer
(Max)
Off-Roa
1.12
0.94
8.39
12.9
0.02
0.26
- 0.26
0.24
- 0.24 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
1.12
0.94
8.39
12.9
0.02
0.26
- 0.26
0.24
- 0.24 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.66
0.56
4.96
7.61
0.01
0.15
- 0.15
0.14
- 0.14 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Annual
-
-
-
-
-
-
- -
-
- - -
Off-Roa
0.12
0.10
0.91
1.39
< 0.005
0.03
- 0.03
0.03
- 0.03 -
d
Equipm
ent
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,417
1,417
0.06
0.01
- 1,421
0.00
0.00
0.00
0.00 0.00
0.00
235
235
0.01
< 0.005 -
235
9/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.13
0.11
0.10
2.25
0.00
0.00
0.44
0.44
0.00
0.10
0.10 -
Vendor
0.01
0.01
0.27
0.12
< 0.005
< 0.005
0.09
0.09
< 0.005
0.02
0.03 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.11
0.09
0.11
1.27
0.00
0.00
0.44
0.44
0.00
0.10
0.10 -
Vendor
0.01
0.01
0.29
0.12
< 0.005
< 0.005
0.09
0.09
< 0.005
0.02
0.03 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.07
0.06
0.07
0.94
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.01
< 0.005
0.17
0.07
< 0.005
< 0.005
0.05
0.05
< 0.005
0.01
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
0.01
0.17
0.00
0.00
0.05
0.05
0.00
0.01
0.01 -
Vendor
< 0.005
< 0.005
0.03
0.01
< 0.005
< 0.005
0.01
0.01
< 0.005
< 0.005
< 0.005 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.5. Building
Construction (2031)
- Unmitigated
Criteria
Pollutants
(lb/day for
daily, ton/yr for annual)
and GHGs (lb/day for daily, MT/yr
for annual)
Onsite
-
-
-
-
-
-
-
-
-
-
- -
0.00
0.00
0.00
0.00
0.00
0.00
452
452
< 0.005
0.02
1.01
458
279
279
< 0.005
0.04
0.58
291
0.00
0.00
0.00
0.00
0.00
0.00
385
385
0.01
0.02
0.03
390
279
279
< 0.005
0.04
0.02
291
0.00
0.00
0.00
0.00
0.00
0.00
243
243
< 0.005
0.01
0.26
246
165
165
< 0.005
0.02
0.15
172
0.00
0.00
0.00
0.00
0.00
0.00
40.3
40.3
< 0.005
< 0.005
0.04
40.8
27.3
27.3
< 0.005
< 0.005
0.02
28.4
0.00
0.00
0.00
0.00
0.00
0.00
10/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Off-Roa
1.10
0.92
8.12
12.8
0.02
0.24
-
0.24
0.22
-
0.22 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
1.10
0.92
8.12
12.8
0.02
0.24
-
0.24
0.22
-
0.22 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.78
0.66
5.80
9.18
0.02
0.17
-
0.17
0.16
-
0.16 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.14
0.12
1.06
1.67
< 0.005
0.03
-
0.03
0.03
-
0.03 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,712
1,712
0.07
0.01
- 1,718
0.00
0.00
0.00
0.00 0.00
0.00
283
283
0.01
< 0.005 -
284
0.00 0.00 0.00 0.00 0.00 0.00
11 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Worker
0.12
0.10
0.10
2.10
0.00
0.00
0.44
0.44
0.00
0.10
0.10 -
Vendor
0.01
0.01
0.26
0.11
< 0.005
< 0.005
0.09
0.09
< 0.005
0.02
0.03 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.10
0.09
0.10
1.19
0.00
0.00
0.44
0.44
0.00
0.10
0.10 -
Vendor
0.01
0.01
0.28
0.12
< 0.005
< 0.005
0.09
0.09
< 0.005
0.02
0.03 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.08
0.07
0.07
1.06
0.00
0.00
0.31
0.31
0.00
0.07
0.07 -
Vendor
0.01
0.01
0.20
0.08
< 0.005
< 0.005
0.06
0.06
< 0.005
0.02
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
0.01
0.19
0.00
0.00
0.06
0.06
0.00
0.01
0.01 -
Vendor
< 0.005
< 0.005
0.04
0.01
< 0.005
< 0.005
0.01
0.01
< 0.005
< 0.005
< 0.005 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.7. Building Construction (2032) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily,
Summer
(Max)
Off-Roa 1.07 0.90 7.87 12.8 0.02 0.22 - 0.22 0.21 - 0.21
d
Equipm
ent
445
445
< 0.005
0.02
0.90
450
271
271
< 0.005
0.04
0.53
283
0.00
0.00
0.00
0.00
0.00
0.00
379
379
< 0.005
0.02
0.02
384
271
271
< 0.005
0.04
0.01
282
0.00
0.00
0.00
0.00
0.00
0.00
289
289
< 0.005
0.01
0.28
293
194
194
< 0.005
0.03
0.16
202
0.00
0.00
0.00
0.00
0.00
0.00
47.9
47.9
< 0.005
< 0.005
0.05
48.5
32.0
32.0
< 0.005
< 0.005
0.03
33.4
0.00
0.00
0.00
0.00
0.00
0.00
2,397 2,397 0.10 0.02 - 2,405
12/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
1.07
0.90
7.87
12.8
0.02
0.22
-
0.22
0.21
-
0.21 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.77
0.64
5.64
9.16
0.02
0.16
-
0.16
0.15
-
0.15 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.14
0.12
1.03
1.67
< 0.005
0.03
-
0.03
0.03
-
0.03 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.11
0.10
0.09
1.98
0.00
0.00
0.44
0.44
0.00
0.10
0.10 -
Vendor
0.01
0.01
0.25
0.11
< 0.005
< 0.005
0.09
0.09
< 0.005
0.02
0.03 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,717
1,717
0.07
0.01
- 1,723
0.00
0.00
0.00
0.00 0.00
0.00
284
284
0.01
< 0.005 -
285
0.00 0.00 0.00 0.00 0.00 0.00
438
438
< 0.005
< 0.005
0.80
440
263
263
< 0.005
0.04
0.48
274
0.00
0.00
0.00
0.00
0.00
0.00
13/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Worker
0.10
0.08
0.10
1.12
0.00
0.00
0.44
0.44
0.00
0.10
0.10 -
Vendor
0.01
0.01
0.27
0.11
< 0.005
< 0.005
0.09
0.09
< 0.005
0.02
0.03 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.07
0.06
0.06
1.01
0.00
0.00
0.31
0.31
0.00
0.07
0.07 -
Vendor
0.01
0.01
0.19
0.08
< 0.005
< 0.005
0.06
0.06
< 0.005
0.02
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
0.01
0.18
0.00
0.00
0.06
0.06
0.00
0.01
0.01 -
Vendor
< 0.005
< 0.005
0.03
0.01
< 0.005
< 0.005
0.01
0.01
< 0.005
< 0.005
< 0.005 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.9. Building Construction (2033) - Unmitigated
374
374
< 0.005
0.02
0.02
379
263
263
< 0.005
0.04
0.01
274
0.00
0.00
0.00
0.00
0.00
0.00
286
286
< 0.005
0.01
0.25
290
188
188
< 0.005
0.03
0.15
196
0.00
0.00
0.00
0.00
0.00
0.00
47.4
47.4
< 0.005
< 0.005
0.04
48.0
31.2
31.2
< 0.005
< 0.005
0.02
32.5
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Off-Roa 1.05 0.88 7.67 12.8 0.02 0.20 - 0.20 0.19 - 0.19
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Daily, - - - - - - - - - - -
Winter
(Max)
2,397 2,397 0.10 0.02 - 2,405
14/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Off-Roa
1.05
0.88
7.67
12.8
0.02
0.20
-
0.20
0.19
-
0.19 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.21
0.17
1.52
2.53
< 0.005
0.04
-
0.04
0.04
-
0.04 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
- -
Off-Roa
0.04
0.03
0.28
0.46
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Worker
0.11
0.09
0.07
1.87
0.00
0.00
0.44
0.44
0.00
0.10
0.10 -
Vendor
0.01
0.01
0.25
0.11
< 0.005
< 0.005
0.09
0.09
< 0.005
0.02
0.03 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.08
0.08
0.09
1.05
0.00
0.00
0.44
0.44
0.00
0.10
0.10 -
Vendor
0.01
0.01
0.26
0.11
< 0.005
< 0.005
0.09
0.09
< 0.005
0.02
0.03 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00 0.00
0.00
474
474
0.02
< 0.005 -
475
0.00
0.00
0.00
0.00 0.00
0.00
78.4
78.4
< 0.005
< 0.005 -
78.7
0.00 0.00 0.00 0.00 0.00 0.00
432
432
< 0.005
< 0.005
0.71
434
255
255
< 0.005
0.04
0.43
266
0.00
0.00
0.00
0.00
0.00
0.00
369
369
< 0.005
0.02
0.02
374
256
256
< 0.005
0.04
0.01
266
0.00
0.00
0.00
0.00
0.00
0.00
15/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Average - - - - - - - - - - - -
Daily
Worker 0.02 0.02 0.02 0.26 0.00 0.00 0.09 0.09 0.00 0.02 0.02 -
Vendor < 0.005 < 0.005 0.05 0.02 < 0.005 < 0.005 0.02 0.02 < 0.005 < 0.005 0.01 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
Annual - - - - - - - - - - - -
Worker < 0.005 < 0.005 < 0.005 0.05 0.00 0.00 0.02 0.02 0.00 < 0.005 < 0.005 -
Vendor < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
3.11. Paving (2030) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - -
Daily, - - - - - - - - - - - -
Summer
(Max)
Off-Roa 0.77 0.64 6.28 9.90 0.01 0.22 - 0.22 0.20 - 0.20
d
Equipm
ent
Paving 0.00 0.00 - - - - - - - - -
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Daily, - - - - - - - - - - -
Winter
(Max)
77.9
77.9
< 0.005
< 0.005
0.06
78.1
50.5
50.5
< 0.005
0.01
0.04
52.6
0.00
0.00
0.00
0.00
0.00
0.00
12.9
12.9
< 0.005
< 0.005
0.01
12.9
8.36
8.36
< 0.005
< 0.005
0.01
8.71
0.00
0.00
0.00
0.00
0.00
0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
Off-Roa 0.77 0.64 6.28 9.90 0.01 0.22 - 0.22 0.20 - 0.20 - 1,511 1,511 0.06 0.01 - 1,516
d
Equipm
ent
Paving 0.00 0.00 - - - - - - -
16/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.45
0.38
3.71
5.85
0.01
0.13
-
0.13
0.12
-
0.12 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.08
0.07
0.68
1.07
< 0.005
0.02
-
0.02
0.02
-
0.02 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.06
0.05
0.05
1.01
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
Winter
(Max)
Worker
0.05
0.04
0.05
0.57
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
0.00
0.00
0.00
0.00
0.00 0.00
893
893
0.04
0.01
- 896
0.00
0.00
0.00
0.00 0.00
0.00
148
148
0.01
< 0.005 -
148
0.00 0.00 0.00 0.00 0.00 0.00
202
202
< 0.005
0.01
0.45
205
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
173
173
< 0.005
0.01
0.01
175
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
17/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Worker
0.03
0.03
0.03
0.42
0.00
0.00
0.12
0.12
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
< 0.005
0.01
0.08
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.13. Paving (2031) - Unmitigated
109
109
< 0.005
< 0.005
0.12
110
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
18.0
18.0
< 0.005
< 0.005
0.02
18.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Off-Roa
0.75
0.63
6.13
9.88
0.01
0.21
- 0.21
0.19
- 0.19 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.75
0.63
6.13
9.88
0.01
0.21
- 0.21
0.19
- 0.19 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
18/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.53
0.45
4.38
7.06
0.01
0.15
-
0.15
0.14
-
0.14 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.10
0.08
0.80
1.29
< 0.005
0.03
-
0.03
0.03
-
0.03 -
d
Equipm
ent
Paving
0.00
0.00
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.05
0.05
0.04
0.94
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.05
0.04
0.04
0.53
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.03
0.03
0.03
0.47
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
19/39
1,079 1,079 0.04 0.01 - 1,083
0.00 0.00 0.00 0.00 0.00 0.00
179 179 0.01 < 0.005 - 179
0.00 0.00 0.00 0.00 0.00 0.00
199
199
< 0.005
0.01
0.41
202
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
170
170
< 0.005
0.01
0.01
172
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
130
130
< 0.005
0.01
0.12
131
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Hauling 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual- -
- - - - - - - - - -
-
-
-
-
-
-
Worker 0.01 0.01
0.01 0.09 0.00 0.00 0.03 0.03 0.00 0.01 0.01 -
21.5
21.5
< 0.005
< 0.005
0.02
21.7
Vendor 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.15. Paving (2032)
- Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - -
- - - - - - - - - -
-
-
-
-
-
-
Daily, - -
- - - - - - - - - -
-
-
-
-
-
-
Summer
(Max)
Off-Roa 0.72 0.61
6.00 9.86 0.01 0.20 - 0.20 0.18 - 0.18 -
1,511
1,511
0.06
0.01
-
1,516
d
Equipm
ent
Paving 0.00 0.00
- - - - - - - - - -
-
-
-
-
-
-
Onsite 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Daily, - -
- - - - - - - - - -
-
-
-
-
-
-
Winter
(Max)
Off-Roa 0.72 0.61
6.00 9.86 0.01 0.20 - 0.20 0.18 - 0.18 -
1,511
1,511
0.06
0.01
-
1,516
d
Equipm
ent
Paving 0.00 0.00
- - - - - - - - - -
-
-
-
-
-
-
Onsite 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Average - -
- - - - - - - - - -
-
-
-
-
-
-
Daily
20 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Off-Roa
0.52
0.44
4.30
7.06
0.01
0.14
-
0.14
0.13
-
0.13 -
d
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
Off-Roa
0.09
0.08
0.78
1.29
< 0.005
0.03
-
0.03
0.02
-
0.02 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.05
0.04
0.04
0.89
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.04
0.04
0.04
0.50
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.03
0.03
0.03
0.45
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
21 / 39
1,082 1,082 0.04 0.01 - 1,086
0.00 0.00 0.00 0.00 0.00 0.00
179 179 0.01 < 0.005 - 180
0.00 0.00 0.00 0.00 0.00 0.00
196
196
< 0.005
< 0.005
0.36
197
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
168
168
< 0.005
0.01
0.01
170
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
128
128
< 0.005
0.01
0.11
130
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Worker 0.01 0.01 < 0.005 0.08 0.00 0.00 0.03 0.03 0.00 0.01 0.01 - 21.2 21.2 < 0.005
< 0.005 0.02 21.5
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00
0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00
0.00 0.00 0.00
3.17. Paving (2033) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - -
- - -
Dail - - - - - - - - - - - - - - -
- - -
yI
Summer
(Max)
Off-Roa
0.70
0.59
5.91
9.84
0.01
0.18
- 0.18
0.17
- 0.17 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.70
0.59
5.91
9.84
0.01
0.18
- 0.18
0.17
- 0.17 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.14
0.12
1.17
1.94
< 0.005
0.04
- 0.04
0.03
- 0.03 -
d
Equipm
ent
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00 0.00
0.00
299
299
0.01
< 0.005 -
300
22 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.03
0.02
0.21
0.35
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.05
0.04
0.03
0.84
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.04
0.04
0.04
0.47
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
0.01
0.01
0.12
0.00
0.00
0.04
0.04
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.02
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
23 / 39
0.00
0.00
0.00
0.00 0.00
0.00
49.4
49.4
< 0.005
< 0.005 -
49.6
0.00 0.00 0.00 0.00 0.00 0.00
194
194
< 0.005
< 0.005
0.32
194
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
165
165
< 0.005
0.01
0.01
168
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
34.9
34.9
< 0.005
< 0.005
0.03
35.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
5.78
5.78
< 0.005
< 0.005
< 0.005
5.79
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00 0.00 0.00 0.00
3.19. Architectural Coating (2030) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily, -
-
-
-
-
-
- -
-
- - -
-
-
-
- -
-
Summer
(Max)
Off-Roa 0.12
0.10
0.78
1.11
< 0.005
0.01
- 0.01
0.01
- 0.01 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.40
1.40
-
-
-
-
- -
-
- - -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Daily,
Winter
(Max)
Off-Roa 0.12
0.10
0.78
1.11
< 0.005
0.01
- 0.01
0.01
- 0.01 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.40
1.40
-
-
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
-
- -
-
- - -
-
-
-
- -
-
Daily
24/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Off-Roa
0.07
0.06
0.46
0.65
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Architect
0.83
0.83
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.01
0.01
0.08
0.12
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect
0.15
0.15
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.03
0.02
0.02
0.45
0.00
0.00
0.09
0.09
0.00
0.02
0.02 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.02
0.02
0.02
0.25
0.00
0.00
0.09
0.09
0.00
0.02
0.02 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
0.01
0.01
0.19
0.00
0.00
0.05
0.05
0.00
0.01
0.01 -
25 / 39
78.9 78.9 < 0.005 < 0.005 - 79.2
0.00
0.00
0.00
0.00 0.00
0.00
13.1
13.1
< 0.005
< 0.005 -
13.1
0.00 0.00 0.00 0.00 0.00 0.00
90.4
90.4
< 0.005
< 0.005
0.20
91.5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
77.1
77.1
< 0.005
< 0.005
0.01
78.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
48.6
48.6
< 0.005
< 0.005
0.05
49.3
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
Annual - - - - - - - - - - - -
Worker < 0.005 < 0.005 < 0.005 0.03 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
3.21. Architectural Coating (2031) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - -
Daily, - - - - - - - - - - - -
Summer
(Max)
Off-Roa 0.12 0.10 0.78 1.10 < 0.005 0.01 - 0.01 0.01 - 0.01 -
d
Equipm
ent
Architect 1.40 1.40 - - - - - - - - - -
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
truck
Daily,
Winter
(Max)
Off-Roa 0.12 0.10 0.78 1.10 < 0.005 0.01 - 0.01 0.01 - 0.01 -
d
Equipm
ent
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
8.05
8.05
< 0.005
< 0.005
0.01
8.16
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
134 134 0.01 < 0.005 - 134
0.00 0.00 0.00 0.00 0.00 0.00
134 134 0.01 < 0.005 - 134
26 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Architect 1.40
1.40
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average -
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa 0.08
0.07
0.55
0.79
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Architect 1.00
1.00
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual -
-
-
-
-
-
-
-
-
-
- -
Off-Roa 0.02
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect 0.18
0.18
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Worker 0.02
0.02
0.02
0.42
0.00
0.00
0.09
0.09
0.00
0.02
0.02 -
Vendor 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
27 / 39
0.00
0.00
0.00
0.00 0.00
0.00
95.4
95.4
< 0.005
< 0.005 -
95.7
0.00
0.00
0.00
0.00 0.00
0.00
15.8
15.8
< 0.005
< 0.005 -
15.8
0.00 0.00 0.00 0.00 0.00 0.00
88.9
88.9
< 0.005
< 0.005
0.18
90.1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Daily, - - - - - - -
-
-
-
- -
Winter
(Max)
Worker 0.02 0.02 0.02 0.24 0.00 0.00 0.09
0.09
0.00
0.02
0.02 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker 0.02 0.01 0.01 0.21 0.00 0.00 0.06
0.06
0.00
0.01
0.01 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
Annual
Worker < 0.005 < 0.005 < 0.005 0.04 0.00 0.00 0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
3.23. Architectural Coating (2032) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual
Onsite - - - - - - -
-
-
-
- -
Daily, - - - - - - -
-
-
-
- -
Summer
(Max)
Off-Roa 0.11 0.09 0.77 1.10 < 0.005 0.01 -
0.01
0.01
-
0.01 -
d
Equipm
ent
Architect 1.40 1.40 -
-
-
-
- -
ural
Coating
s
75.9
75.9
< 0.005
< 0.005
< 0.005
76.8
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
57.9
57.9
< 0.005
< 0.005
0.06
58.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
9.58
9.58
< 0.005
< 0.005
0.01
9.70
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
134 134 0.01 < 0.005 - 134
28 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily, -
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa 0.11
0.09
0.77
1.10
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Architect 1.40
1.40
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average -
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa 0.08
0.07
0.55
0.79
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Architect 1.00
1.00
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
Off-Roa 0.01
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect 0.18
0.18
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
29 / 39
0.00 0.00 0.00 0.00 0.00 0.00
134 134 0.01 < 0.005 - 134
0.00
0.00
0.00
0.00 0.00
0.00
95.6
95.6
< 0.005
< 0.005 -
95.9
0.00
0.00
0.00
0.00 0.00
0.00
15.8
15.8
< 0.005
< 0.005 -
15.9
0.00 0.00 0.00 0.00 0.00 0.00
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Offsite
Daily,
Summer
(Max)
Worker
0.02
0.02
0.02
0.40
0.00
0.00
0.09
0.09
0.00
0.02
0.02 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.02
0.02
0.02
0.22
0.00
0.00
0.09
0.09
0.00
0.02
0.02 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
0.01
0.01
0.20
0.00
0.00
0.06
0.06
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.04
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.25. Architectural Coating (2033) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Location TOG I ROG I NOx CO S02 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2
•
D.
Summer
87.7
87.7
< 0.005
< 0.005
0.16
88.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
74.8
74.8
< 0.005
< 0.005
< 0.005
75.8
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
57.2
57.2
< 0.005
< 0.005
0.05
58.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
9.47
9.47
< 0.005
< 0.005
0.01
9.60
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
30 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Off-Roa 0.11
0.09
0.76
1.10
< 0.005
0.01 -
0.01
0.01 -
0.01 -
d
Architect 1.40
1.40
-
-
-
- -
-
- -
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
truck
Daily, -
-
-
-
-
- -
-
- -
- -
Winter
(Max)
Off-Roa 0.11
0.09
0.76
1.10
< 0.005
0.01 -
0.01
0.01 -
0.01 -
d
Equipm
ent
Architect 1.40
1.40
-
-
-
- -
-
- -
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
truck
Average
Daily
Off-Roa 0.02
0.02
0.15
0.22
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
d
Equipm
ent
Architect 0.28
0.28
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
truck
Annual -
-
-
-
-
- -
-
- -
- -
Off-Roa < 0.005
< 0.005
0.03
0.04
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
d
Equipm
ent
134 134 0.01 < 0.005 - 134
0.00 0.00 0.00 0.00 0.00 0.00
134 134 0.01 < 0.005 - 134
0.00 0.00 0.00 0.00 0.00 0.00
26.4 26.4 < 0.005 < 0.005 - 26.5
0.00
0.00
0.00
0.00 0.00
0.00
4.37
4.37
< 0.005
< 0.005 -
4.38
31 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Architect 0.05 0.05
Coatings
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
Daily,
-
Summer
(Max)
Worker
0.02
0.02
0.01
0.37
0.00
0.00
0.09
0.09
0.00
0.02
0.02 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.02
0.02
0.02
0.21
0.00
0.00
0.09
0.09
0.00
0.02
0.02 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
< 0.005
< 0.005
< 0.005
0.05
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
Worker
< 0.005
< 0.005
< 0.005
0.01
0.00
0.00
< 0.005
< 0.005
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
4. Operations Emissions Details
4.10. Soil Carbon Accumulation By Vegetation Type
0.00 0.00 0.00 0.00 0.00 0.00
86.5
86.5
< 0.005
< 0.005
0.14
86.8
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
73.8
73.8
< 0.005
< 0.005
< 0.005
74.8
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
15.6
15.6
< 0.005
< 0.005
0.01
15.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.58
2.58
< 0.005
< 0.005
< 0.005
2.59
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
32 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
MWEEMOMMEMEME
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total— — — — — — — — — — — — — — — — — —
Daily, — — — — — — — — — — — — — — — — — —
Winter
(Max)
Total — — — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — — — —
Total — — — — — — —
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total — — — — — — — — — — — — — — — — — —
Daily, — — — — — — — — — — — — — — — — — —
Winter
(Max)
Total— — — — — — — — — — — — — — — — — —
Annual— — — — — — — — — — — — — — — — — —
Total— — — — — — — — — — — — — — — — — —
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
33 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Avoided
Subtotal
Sequest
ered
Subtotal
Remove
d
Subtotal
Daily,
Winter
(Max)
Avoided
Subtotal
Sequest
ered
Subtotal
Remove
d
Subtotal
Annual
Avoided
Subtotal
Sequest
ered
Subtotal — — — — — — — —
34/39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Remove - - - -
Subtotal - - - -
5. Activity Data
5.1. Construction Schedule
Grading
Grading 1/1/2030
3/4/2030
5.00
45.0
-
Building Construction
Building Construction 3/5/2030
4/11/2033
5.00
810
-
Paving
Paving 3/5/2030
4/11/2033
5.00
810
-
Architectural Coating
Architectural Coating 3/5/2030
4/11/2033
5.00
810
-
5.2. Off -Road Equipment
5.2.1. Unmitigated
Equipment Type Number per Day Hours Per Day Horsepower
Grading
Excavators Diesel
Average
2.00
8.00
36.0
0.38
Grading
Graders Diesel
Average
1.00
8.00
148
0.41
Grading
Rubber Tired Dozers Diesel
Average
1.00
8.00
367
0.40
Grading
Tractors/Loaders/Back Diesel
Average
2.00
8.00
84.0
0.37
hoes
Grading
Scrapers Diesel
Average
2.00
8.00
423
0.48
Building Construction
Cranes Diesel
Average
1.00
7.00
367
0.29
Building Construction
Forklifts Diesel
Average
3.00
8.00
82.0
0.20
Building Construction
Generator Sets Diesel
Average
1.00
8.00
14.0
0.74
Building Construction
Tractors/Loaders/Back Diesel
Average
3.00
7.00
84.0
0.37
hoes
35 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Building Construction
Welders
Diesel
Average
1.00
8.00
46.0
0.45
Paving
Pavers
Diesel
Average
2.00
8.00
81.0
0.42
Paving
Paving Equipment
Diesel
Average
2.00
8.00
89.0
0.36
Paving
Rollers
Diesel
Average
2.00
8.00
36.0
0.38
Architectural Coating
Air Compressors
Diesel
Average
1.00
6.00
37.0
0.48
5.3. Construction Vehicles
5.3.1. Unmitigated
Grading
Grading
Worker
20.0
18.5
LDA,LDT1,LDT2
Grading
Vendor
-
10.2
HHDT,MHDT
Grading
Hauling
0.00
20.0
HHDT
Grading
Onsite truck
-
-
HHDT
Building Construction
-
-
-
-
Building Construction
Worker
33.5
18.5
LDA,LDT1,LDT2
Building Construction
Vendor
9.94
10.2
HHDT,MHDT
Building Construction
Hauling
0.00
20.0
HHDT
Building Construction
Onsite truck
-
-
HHDT
Paving
-
-
-
-
Paving
Worker
15.0
18.5
LDA,LDT1,LDT2
Paving
Vendor
-
10.2
HHDT,MHDT
Paving
Hauling
0.00
20.0
HHDT
Paving
Onsite truck
-
-
HHDT
Architectural Coating
-
-
-
-
Architectural Coating
Worker
6.70
18.5
LDA,LDT1,LDT2
Architectural Coating
Vendor
-
10.2
HHDT,MHDT
36 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
Architectural Coating Hauling
0.00
20.0
HHDT
Architectural Coating Onsite truck
—
—
HHDT
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
Control Strategies Applied
PM10 Reduction
PM2.5 Reduction
Water unpaved roads twice daily
55%
55%
Limit vehicle speeds on unpaved roads to 25 mph
44%
44%
Sweep paved roads once per month
9%
9%
5.5. Architectural Coatings
Residential Interior Area
Residential Exterior Area
Non -Residential Interior
Area
Parking Area Coated (sq ft)
Coated (sq ft)
Coated (sq ft)
Coated (sq ft)
Coated (sq ft)
Architectural Coating 367,234
122,411
0.00
0.00
—
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
Material Imported (cy)
Material Exported (cy)
Acres Graded (acres)
Material Demolished
(sq. ft.) Acres Paved (acres)
Grading —
—
135
0.00
—
Paving 0.00
0.00
0.00
0.00
1.02
5.6.2. Construction Earthmoving Control Strategies
Control Strategies Applied Frequency (per
day)
PM10 Reduction
PM2.5 Reduction
Water Exposed Area 3
74%
74%
Water Demolished Area 2
36%
36%
37 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
5.7. Construction Paving
Single Family Housing 1.02 0%
5.8. Construction Electricity Consumption and Emissions Factors
kWh per Year and Emission Factor (lb/MWh)
2030
0.00
457
0.03
< 0.005
2031
0.00
457
0.03
< 0.005
2032
0.00
457
0.03
< 0.005
2033
0.00
457
0.03
< 0.005
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
5.18.2.1. Unmitigated
38 / 39
SilverRock Resort Proposed Project Construction Phase 1 (Planning Area 7) Custom Report, 7/18/2025
8. User Changes to Default Data
Land Use
Construction: Construction Phases
Planning Area 7 includes 93 single family homes.
Assumed 10% of land use is landscaped.
Construction estimated to take place from 2030 to April 2033.
Building construction, paving, and architectural coating to occur intermittently as homes are
constructed.
911-7LcII-]
n-I
Proposed Project Construction
(Planning Area 8)
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
SilverRock Resort Proposed Project Construction Phase 2 (Planning
Area 8) Custom Report
Table of Contents
1. Basic Project Information
1.1. Basic Project Information
1.2. Land Use Types
1.3. User -Selected Emission Reduction Measures by Emissions Sector
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
2.2. Construction Emissions by Year, Unmitigated
3. Construction Emissions Details
3.1. Grading (2035) - Unmitigated
3.3. Grading (2036) - Unmitigated
3.5. Building Construction (2036) - Unmitigated
3.7. Building Construction (2037) - Unmitigated
3.9. Building Construction (2038) - Unmitigated
3.11. Building Construction (2039) - Unmitigated
1 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
3.13. Building Construction (2040) - Unmitigated
3.15. Building Construction (2041) - Unmitigated
3.17. Building Construction (2042) - Unmitigated
3.19. Building Construction (2043) - Unmitigated
3.21. Building Construction (2044) - Unmitigated
3.23. Building Construction (2045) - Unmitigated
3.25. Paving (2036) - Unmitigated
3.27. Paving (2037) - Unmitigated
3.29. Paving (2038) - Unmitigated
3.31. Paving (2039) - Unmitigated
3.33. Paving (2040) - Unmitigated
3.35. Paving (2041) - Unmitigated
3.37. Paving (2042) - Unmitigated
3.39. Paving (2043) - Unmitigated
3.41. Paving (2044) - Unmitigated
3.43. Paving (2045) - Unmitigated
3.45. Architectural Coating (2036) - Unmitigated
3.47. Architectural Coating (2037) - Unmitigated
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SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
3.49. Architectural Coating (2038) - Unmitigated
3.51. Architectural Coating (2039) - Unmitigated
3.53. Architectural Coating (2040) - Unmitigated
3.55. Architectural Coating (2041) - Unmitigated
3.57. Architectural Coating (2042) - Unmitigated
3.59. Architectural Coating (2043) - Unmitigated
3.61. Architectural Coating (2044) - Unmitigated
3.63. Architectural Coating (2045) - Unmitigated
4. Operations Emissions Details
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
5. Activity Data
5.1. Construction Schedule
5.2. Off -Road Equipment
5.2.1. Unmitigated
5.3. Construction Vehicles
3/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
5.3.1. Unmitigated
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
5.5. Architectural Coatings
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
5.6.2. Construction Earthmoving Control Strategies
5.7. Construction Paving
5.8. Construction Electricity Consumption and Emissions Factors
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
5.18.2.1. Unmitigated
8. User Changes to Default Data
4/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
1. Basic Project Information
1.1. Basic Project Information
Project Name
Construction Start Date
Lead Agency
Land Use Scale
Analysis Level for Defaults
Windspeed (m/s)
Precipitation (days)
Location
County
City
Air District
Air Basin
TAZ
EDFZ
Electric Utility
Gas Utility
App Version
1.2. Land Use Types
Golf Course 18.0 Hole 126 0.00
Single Family 253 Dwelling Unit 82.1 493,350
Housing
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8)
1 /1 /2035
Project/site
County
3.00
7.60
33.672095298053605,-116.2796035818008
Riverside -Salton Sea
La Quinta
South Coast AQMD
Salton Sea
5651
19
Imperial Irrigation District
Southern California Gas
2022.1.1.29
0.00 0.00
49,335 —
300 —
817 —
5/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
General Office 40.0 1000sgft 0.92 40,000 4,000 -
Building
1.3. User -Selected Emission Reduction Measures by Emissions Sector
No measures selected
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, - - - - - - - - - -
Summer
(Max)
Unmit. 3.56 3.27 16.9 30.1 0.06 0.62 2.65 3.28 0.57 1.01 1.58 -
Daily, - - - - - - - - - - - -
Winter
(Max)
Unmit. 3.56 3.27 16.9 27.6 0.06 0.62 2.65 3.28 0.57 1.01 1.58 -
Average - - - - - - - - - - - -
Daily
(Max)
Unmit. 2.52 2.32 12.0 20.1 0.04 0.45 1.90 2.34 0.41 0.72 1.13 -
Annual
(Max)
Unmit. 0.46 0.42 2.20 3.68 0.01 0.08 0.35 0.43 0.07 0.13 0.21 -
Exceeds - - - - - - - - - - - -
(Daily
Max)
Threshol - 75.0 100 550 150 - - 150 - - 55.0 -
d
Unmit. - No No No No - - No - - No -
6,848 6,848 0.27 0.15 2.54 6,872
6,812 6,812 0.27 0.15 0.08 6,835
4,876
4,876
0.19
0.10
0.78
4,892
807
807
0.03
0.02
0.13
810
6/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Exceeds
(Average
Daily)
Threshol
-
75.0
100
550
150
-
-
150
-
-
55.0 -
d
Unmit.
-
No
No
No
No
-
-
No
-
-
No -
2.2. Construction Emissions by
Year,
Unmitigated
Criteria
Pollutants (lb/day for
daily, ton/yr
for annual)
and GHGs (lb/day for daily, MT/yr
for annual)
Daily -
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
2035
2.86
2.41
16.9
25.6
0.06
0.62
2.65
3.28
0.57
1.01
1.58 -
2036
2.76
2.33
15.9
25.1
0.06
0.58
2.65
3.23
0.53
1.01
1.54 -
2037
3.56
3.27
14.2
30.1
0.05
0.30
2.11
2.41
0.28
0.51
0.79 -
2038
3.52
3.24
14.0
29.9
0.05
0.28
2.11
2.40
0.25
0.51
0.76 -
2039
3.49
3.21
13.8
29.7
0.05
0.27
2.11
2.39
0.25
0.51
0.75 -
2040
3.46
3.19
13.7
29.5
0.05
0.27
2.11
2.38
0.24
0.51
0.75 -
2041
3.44
3.11
13.5
29.2
0.05
0.26
2.11
2.37
0.23
0.51
0.74 -
2042
3.42
3.09
13.4
29.1
0.05
0.25
2.11
2.36
0.22
0.51
0.73 -
2043
3.40
3.07
13.3
28.9
0.05
0.23
2.11
2.33
0.21
0.51
0.72 -
2044
3.37
3.05
13.2
28.8
0.05
0.22
2.11
2.33
0.20
0.51
0.71 -
2045
3.35
3.03
13.1
28.6
0.05
0.21
2.11
2.31
0.19
0.51
0.70 -
Daily -
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
2035
2.86
2.41
16.9
25.2
0.06
0.62
2.65
3.28
0.57
1.01
1.58 -
2036
3.56
3.27
15.9
27.6
0.06
0.58
2.65
3.23
0.53
1.01
1.54 -
2037
3.51
3.23
14.3
27.3
0.05
0.30
2.11
2.41
0.28
0.51
0.79 -
2038
3.48
3.20
14.1
27.2
0.05
0.28
2.11
2.40
0.25
0.51
0.76 -
7/79
6,848
6,848
0.27
0.05
0.33
6,872
6,846
6,846
0.27
0.05
0.29
6,869
6,547
6,547
0.19
0.15
2.54
6,598
6,533
6,533
0.19
0.15
2.19
6,584
6,506
6,506
0.19
0.15
1.87
6,556
6,482
6,482
0.18
0.15
1.59
6,532
6,460
6,460
0.18
0.15
1.35
6,510
6,441
6,441
0.18
0.14
1.14
6,488
6,424
6,424
0.18
0.14
0.96
6,470
6,409
6,409
0.18
0.14
0.81
6,455
6,395
6,395
0.18
0.14
0.67
6,442
6,812
6,812
0.27
0.05
0.01
6,835
6,809
6,809
0.27
0.15
0.08
6,833
6,296
6,296
0.19
0.15
0.07
6,344
6,282
6,282
0.19
0.15
0.06
6,331
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
2039
3.45
3.12
13.9
27.0
0.05
0.27
2.11
2.39
0.25
0.51
2040
3.43
3.09
13.8
26.9
0.05
0.27
2.11
2.38
0.24
0.51
2041
3.41
3.08
13.6
26.7
0.05
0.26
2.11
2.37
0.23
0.51
2042
3.39
3.06
13.5
26.6
0.05
0.25
2.11
2.36
0.22
0.51
2043
3.37
3.04
13.4
26.5
0.05
0.23
2.11
2.33
0.21
0.51
2044
3.30
3.03
13.3
26.4
0.05
0.22
2.11
2.33
0.20
0.51
2045
3.27
3.00
13.2
26.3
0.05
0.21
2.11
2.31
0.19
0.51
Average
-
-
-
-
-
-
-
-
-
-
Daily
2035
2.04
1.72
12.0
18.1
0.04
0.45
1.90
2.34
0.41
0.72
2036
2.11
1.82
11.2
18.3
0.04
0.37
1.81
2.19
0.34
0.64
2037
2.52
2.32
10.2
20.1
0.03
0.22
1.50
1.71
0.20
0.36
2038
2.49
2.29
10.0
20.1
0.03
0.20
1.50
1.70
0.18
0.36
2039
2.47
2.27
9.90
19.9
0.03
0.20
1.50
1.70
0.18
0.36
2040
2.46
2.22
9.84
19.9
0.03
0.19
1.51
1.70
0.17
0.36
2041
2.44
2.20
9.68
19.7
0.03
0.18
1.50
1.68
0.16
0.36
2042
2.43
2.19
9.61
19.6
0.03
0.18
1.50
1.68
0.16
0.36
2043
2.41
2.18
9.54
19.5
0.03
0.16
1.50
1.66
0.15
0.36
2044
2.41
2.17
9.50
19.5
0.03
0.16
1.50
1.66
0.15
0.36
2045
1.61
1.48
6.47
13.3
0.02
0.10
1.03
1.13
0.09
0.25
Annual
2035
0.37
0.31
2.20
3.30
0.01
0.08
0.35
0.43
0.07
0.13
2036
0.38
0.33
2.04
3.35
0.01
0.07
0.33
0.40
0.06
0.12
2037
0.46
0.42
1.86
3.68
0.01
0.04
0.27
0.31
0.04
0.07
2038
0.45
0.42
1.83
3.66
0.01
0.04
0.27
0.31
0.03
0.07
2039
0.45
0.41
1.81
3.63
0.01
0.04
0.27
0.31
0.03
0.07
2040
0.45
0.41
1.80
3.62
0.01
0.03
0.27
0.31
0.03
0.07
2041
0.45
0.40
1.77
3.59
0.01
0.03
0.27
0.31
0.03
0.07
2042
0.44
0.40
1.75
3.57
0.01
0.03
0.27
0.31
0.03
0.07
8/79
0.75 -
6,257
6,257
0.19
0.15
0.05
6,305
0.75 -
6,235
6,235
0.18
0.15
0.04
6,283
0.74 -
6,215
6,215
0.18
0.15
0.04
6,263
0.73 -
6,197
6,197
0.18
0.14
0.03
6,243
0.72 -
6,181
6,181
0.18
0.14
0.02
6,226
0.71 -
6,167
6,167
0.18
0.14
0.02
6,212
0.70 -
6,154
6,154
0.18
0.14
0.02
6,200
1.13 -
4,876
4,876
0.19
0.04
0.10
4,892
0.99 -
4,824
4,824
0.18
0.06
0.27
4,845
0.56 -
4,568
4,568
0.13
0.10
0.78
4,603
0.54 -
4,558
4,558
0.13
0.10
0.67
4,593
0.54 -
4,539
4,539
0.13
0.10
0.58
4,575
0.53 -
4,535
4,535
0.13
0.10
0.49
4,570
0.52 -
4,508
4,508
0.13
0.10
0.42
4,543
0.52 -
4,495
4,495
0.13
0.10
0.35
4,528
0.51 -
4,483
4,483
0.13
0.10
0.30
4,516
0.51 -
4,485
4,485
0.13
0.10
0.25
4,517
0.34 -
3,070
3,070
0.09
0.07
0.14
3,092
0.21 -
807
807
0.03
0.01
0.02
810
0.18 -
799
799
0.03
0.01
0.05
802
0.10 -
756
756
0.02
0.02
0.13
762
0.10 -
755
755
0.02
0.02
0.11
760
0.10 -
752
752
0.02
0.02
0.10
757
0.10 -
751
751
0.02
0.02
0.08
757
0.10 -
746
746
0.02
0.02
0.07
752
0.09 -
744
744
0.02
0.02
0.06
750
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
2043 0.44 0.40
1.74 3.55 0.01 0.03
0.27
0.30
0.03
0.07 0.09 -
742
742
0.02
0.02
0.05 748
2044 0.44 0.40
1.73 3.55 0.01 0.03
0.27
0.30
0.03
0.07 0.09 -
743
743
0.02
0.02
0.04 748
2045 0.29 0.27
1.18 2.43 < 0.005 0.02
0.19
0.21
0.02
0.05 0.06 -
508
508
0.01
0.01
0.02 512
3. Construction
Emissions Details
3.1. Grading (2035)
- Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and
GHGs (lb/day for daily, MT/yr for annual)
Onsite - -
- - - -
-
-
-
- - -
-
-
-
-
- -
Daily, - -
- - - -
-
-
-
- - -
-
-
-
-
- -
Summer
(Max)
Off-Roa 2.81 2.36
16.8 24.6 0.06 0.62
-
0.62
0.57
- 0.57 -
6,596
6,596
0.27
0.05
- 6,619
d
Equipm
ent
Dust - -
- - - -
2.39
2.39
-
0.95 0.95 -
-
-
-
-
-
From
Material
Movement
Onsite 0.00 0.00
0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00
0.00 0.00
truck
Daily, - -
- - - -
-
-
-
- - -
-
-
-
-
- -
Winter
(Max)
Off-Roa 2.81 2.36
16.8 24.6 0.06 0.62
-
0.62
0.57
- 0.57 -
6,596
6,596
0.27
0.05
- 6,619
d
Equipm
ent
Dust - -
- - - -
2.39
2.39
-
0.95 0.95 -
-
-
-
-
-
From
Material
Movement
9/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
2.01
1.69
12.0
17.6
0.04
0.45
-
0.45
0.41
-
0.41 -
d
Equipm
ent
Dust
-
-
-
-
-
-
1.71
1.71
-
0.68
0.68
From
Material
Movement
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.37
0.31
2.19
3.21
0.01
0.08
-
0.08
0.07
-
0.07 -
d
Equipm
ent
Dust
-
-
-
-
-
-
0.31
0.31
-
0.12
0.12
From
Material
Movement
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.05
0.05
0.04
1.00
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.05
0.05
0.04
0.56
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
10/79
0.00
0.00
0.00
0.00
0.00 0.00
4,712
4,712
0.19
0.04
- 4,728
0.00
0.00
0.00
0.00
0.00 0.00
780
780
0.03
0.01
- 783
0.00 0.00 0.00 0.00 0.00 0.00
252
252
< 0.005
< 0.005
0.33
253
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
215 215 < 0.005 < 0.005 0.01 216
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.03
0.03
0.03
0.51
0.00
0.00
0.19
0.19
0.00
0.04
0.04 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
0.01
0.09
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.3. Grading (2036) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily,
Summer
(Max)
Off-Roa 2.71 2.28 15.9 24.1 0.06 0.58 - 0.58 0.53 - 0.53 -
d
Equipm
ent
Dust - - - - - - 2.39 2.39 - 0.95 0.95 -
From
Material
Movement
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
truck
Daily, - - - - - - - - - - - -
Winter
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00
164
164
< 0.005
< 0.005
0.10
165
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
27.2
27.2
< 0.005
< 0.005
0.02
27.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6,596 6,596 0.27 0.05 - 6,619
0.00 0.00 0.00 0.00 0.00 0.00
11 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Off-Roa 2.71
2.28
15.9
24.1
0.06
0.58
-
0.58
0.53
-
0.53 -
Equipment
Dust -
-
-
-
-
-
2.39
2.39
-
0.95
0.95 -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average -
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa 1.51
1.27
8.81
13.4
0.03
0.32
-
0.32
0.30
-
0.30 -
d
Equipm
ent
Dust -
-
-
-
-
-
1.33
1.33
-
0.53
0.53 -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
Off-Roa 0.28
0.23
1.61
2.44
0.01
0.06
-
0.06
0.05
-
0.05 -
d
Equipm
ent
Dust -
-
-
-
-
-
0.24
0.24
-
0.10
0.10 -
From
Material
Movement
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite -
-
-
-
-
-
-
-
-
-
- -
Daily, -
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker 0.05
0.05
0.03
0.95
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
12/79
6,596 6,596 0.27 0.05 - 6,619
0.00
0.00
0.00
0.00
0.00 0.00
3,666
3,666
0.15
0.03
- 3,679
0.00
0.00
0.00
0.00 0.00
0.00
607
607
0.02
< 0.005 -
609
0.00 0.00 0.00 0.00 0.00 0.00
250 250 < 0.005 < 0.005 0.29 250
0.00 0.00 0.00 0.00 0.00 0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.04
0.04
0.04
0.54
0.00
0.00
0.26
0.26
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.03
0.03
0.02
0.37
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
Worker
< 0.005
< 0.005
< 0.005
0.07
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.5. Building Construction (2036) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - -
Daily, - - - - - - - - -
Summer
(Max)
Daily, - - - - - - - - - - -
Winter
(Max)
Off-Roa 0.99 0.83 7.12 12.6 0.02 0.17 - 0.17 0.16 - 0.16
d
Equipm
ent
0.00 0.00 0.00 0.00 0.00 0.00
213
213
< 0.005
< 0.005
0.01
214
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
127
127
< 0.005
< 0.005
0.07
127
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21.0
21.0
< 0.005
< 0.005
0.01
21.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2,397 2,397 0.10 0.02 - 2,405
13/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.16
0.13
1.14
2.02
< 0.005
0.03
-
0.03
0.02
-
0.02 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.03
0.02
0.21
0.37
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.23
0.23
0.22
2.80
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.84
0.36
0.01
0.02
0.29
0.30
0.02
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.04
0.04
0.03
0.56
0.00
0.00
0.22
0.22
0.00
0.05
0.05 -
Vendor
0.01
< 0.005
0.13
0.06
< 0.005
< 0.005
0.05
0.05
< 0.005
0.01
0.02 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
0.01
0.10
0.00
0.00
0.04
0.04
0.00
0.01
0.01 -
14/79
0.00
0.00
0.00
0.00 0.00
0.00
385
385
0.02
< 0.005 -
386
0.00
0.00
0.00
0.00 0.00
0.00
63.7
63.7
< 0.005
< 0.005 -
63.9
0.00 0.00 0.00 0.00 0.00 0.00
1,108
1,108
0.01
0.01
0.04
1,110
797
797
0.01
0.11
0.02
830
0.00
0.00
0.00
0.00
0.00
0.00
190
190
< 0.005
< 0.005
0.10
190
128
128
< 0.005
0.02
0.07
133
0.00
0.00
0.00
0.00
0.00
0.00
31.4
31.4
< 0.005
< 0.005
0.02
31.5
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Vendor < 0.005 < 0.005 0.02 0.01
< 0.005 < 0.005 0.01 0.01
< 0.005 < 0.005 < 0.005 -
Hauling 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 -
3.7. Building Construction (2037)
- Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - -
- - - -
- - - -
Daily, - - - -
- - - -
- - - -
Summer
(Max)
Off-Roa 0.98 0.82 6.99 12.5
0.02 0.16 - 0.16
0.14 - 0.14 -
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 -
truck
Daily, - - - -
- - - -
- - - -
Winter
(Max)
Off-Roa 0.98 0.82 6.99 12.5
0.02 0.16 - 0.16
0.14 - 0.14 -
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 -
truck
Average - - - -
- - - -
- - - -
Daily
Off-Roa 0.70 0.58 4.99 8.93
0.02 0.11 - 0.11
0.10 - 0.10 -
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 -
truck
Annual - - - -
- - - -
- - - -
15/79
21.1 21.1 < 0.005 < 0.005 0.01 22.1
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,712
1,712
0.07
0.01
- 1,718
0.00 0.00 0.00 0.00 0.00 0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Off-Roa 0.13
0.11
0.91
1.63
< 0.005
0.02 -
0.02
0.02
-
0.02 -
Equipment
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
- -
-
-
-
Daily, -
-
-
Summer
(Max)
Worker 0.25
0.25
0.17
4.76
0.00
0.00 1.36
1.36
0.00
0.32
0.32 -
Vendor 0.04
0.03
0.77
0.33
0.01
0.02 0.28
0.30
0.02
0.08
0.09 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00
0.00
0.00 -
Daily, -
-
-
-
-
- -
-
-
-
- -
Winter
(Max)
Worker 0.22
0.22
0.17
2.70
0.00
0.00 1.36
1.36
0.00
0.32
0.32 -
Vendor 0.03
0.03
0.83
0.35
0.01
0.02 0.28
0.30
0.02
0.08
0.09 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00
0.00
0.00 -
Average -
-
-
-
-
- -
-
-
-
- -
Daily
Worker 0.16
0.16
0.12
2.39
0.00
0.00 0.97
0.97
0.00
0.23
0.23 -
Vendor 0.02
0.02
0.58
0.24
0.01
0.01 0.20
0.21
0.01
0.06
0.07 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00
0.00
0.00 -
Annual
Worker 0.03
0.03
0.02
0.44
0.00
0.00 0.18
0.18
0.00
0.04
0.04 -
Vendor < 0.005
< 0.005
0.11
0.04
< 0.005
< 0.005 0.04
0.04
< 0.005
0.01
0.01 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00
0.00
0.00 -
3.9. Building
Construction (2038)
- Unmitigated
Criteria Pollutants
(lb/day for
daily, ton/yr for annual)
and GHGs (lb/day for daily, MT/yr
for annual)
Onsite -
-
-
-
-
- -
-
-
-
- -
16/79
283
283
0.01
< 0.005 -
284
0.00
0.00
0.00
0.00 0.00
0.00
1,286
1,286
0.01
0.01
1.29
1,289
777
777
0.01
0.10
0.80
810
0.00
0.00
0.00
0.00
0.00
0.00
1,098
1,098
0.01
0.01
0.03
1,101
778
778
0.01
0.10
0.02
810
0.00
0.00
0.00
0.00
0.00
0.00
837
837
0.01
< 0.005
0.40
839
556
556
0.01
0.07
0.25
578
0.00
0.00
0.00
0.00
0.00
0.00
139
139
< 0.005
< 0.005
0.07
139
92.0
92.0
< 0.005
0.01
0.04
95.7
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Off-Roa
0.97
0.81
6.89
12.5
0.02
0.15
-
0.15
0.14
-
0.14 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
0.97
0.81
6.89
12.5
0.02
0.15
-
0.15
0.14
-
0.14 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.69
0.58
4.92
8.90
0.02
0.11
-
0.11
0.10
-
0.10 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.13
0.11
0.90
1.62
< 0.005
0.02
-
0.02
0.02
-
0.02 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,712
1,712
0.07
0.01
- 1,718
0.00
0.00
0.00
0.00 0.00
0.00
283
283
0.01
< 0.005 -
284
0.00 0.00 0.00 0.00 0.00 0.00
17/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Worker
0.24
0.24
0.17
4.66
0.00
0.00
1.36
1.36
0.00
0.32
Vendor
0.03
0.03
0.78
0.33
0.01
0.02
0.29
0.30
0.01
0.08
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
-
-
-
-
-
-
-
-
-
-
Winter
(Max)
Worker
0.22
0.21
0.17
2.64
0.00
0.00
1.36
1.36
0.00
0.32
Vendor
0.03
0.03
0.84
0.35
0.01
0.02
0.29
0.30
0.01
0.08
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Average
Daily
Worker
0.16
0.15
0.12
2.35
0.00
0.00
0.97
0.97
0.00
0.23
Vendor
0.02
0.02
0.58
0.24
0.01
0.01
0.20
0.22
0.01
0.06
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Annual
-
-
-
-
-
-
-
-
-
-
Worker
0.03
0.03
0.02
0.43
0.00
0.00
0.18
0.18
0.00
0.04
Vendor
< 0.005
< 0.005
0.11
0.04
< 0.005
< 0.005
0.04
0.04
< 0.005
0.01
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3.11. Building Construction (2039) - Unmitigated
0.32 -
1,286
1,286
0.01
0.01
1.13
1,290
0.09 -
763
763
0.01
0.10
0.67
795
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
0.32 -
1,099
1,099
0.01
0.01
0.03
1,101
0.09 -
764
764
0.01
0.10
0.02
796
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
0.23 -
838
838
0.01
< 0.005
0.35
840
0.06 -
546
546
0.01
0.07
0.21
568
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
0.04 -
139
139
< 0.005
< 0.005
0.06
139
0.01 -
90.3
90.3
< 0.005
0.01
0.03
94.1
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite
Daily,
Summer
(Max)
Off-Roa 0.96 0.80 6.78 12.4 0.02 0.15 - 0.15 0.13 - 0.13 -
d
Equipm
ent
2,397 2,397 0.10 0.02 - 2,405
18/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
0.96
0.80
6.78
12.4
0.02
0.15
-
0.15
0.13
-
0.13 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.69
0.57
4.84
8.86
0.02
0.10
-
0.10
0.10
-
0.10 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.13
0.10
0.88
1.62
< 0.005
0.02
-
0.02
0.02
-
0.02 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.23
0.23
0.17
4.52
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.04
0.03
0.77
0.33
0.01
0.02
0.29
0.30
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,712
1,712
0.07
0.01
- 1,718
0.00
0.00
0.00
0.00 0.00
0.00
283
283
0.01
< 0.005 -
284
0.00 0.00 0.00 0.00 0.00 0.00
1,277
1,277
0.01
0.01
0.98
1,280
749
749
0.01
0.10
0.56
780
0.00
0.00
0.00
0.00
0.00
0.00
19/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Worker
0.21
0.16
0.17
2.54
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.83
0.35
0.01
0.02
0.29
0.30
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.15
0.15
0.12
2.28
0.00
0.00
0.97
0.97
0.00
0.23
0.23 -
Vendor
0.02
0.02
0.57
0.24
0.01
0.01
0.20
0.22
0.01
0.06
0.06 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.03
0.03
0.02
0.42
0.00
0.00
0.18
0.18
0.00
0.04
0.04 -
Vendor
< 0.005
< 0.005
0.10
0.04
< 0.005
< 0.005
0.04
0.04
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.13. Building Construction (2040) - Unmitigated
1,091
1,091
0.01
0.01
0.03
1,093
750
750
0.01
0.10
0.01
781
0.00
0.00
0.00
0.00
0.00
0.00
832
832
0.01
< 0.005
0.30
834
535
535
0.01
0.07
0.17
558
0.00
0.00
0.00
0.00
0.00
0.00
138
138
< 0.005
< 0.005
0.05
138
88.6
88.6
< 0.005
0.01
0.03
92.3
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Off-Roa 0.96 0.80 6.71 12.4 0.02 0.14 - 0.14 0.13 - 0.13
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Daily, - - - - - - - - - - -
Winter
(Max)
2,397 2,397 0.10 0.02 - 2,405
20 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Off-Roa
0.96
0.80
6.71
12.4
0.02
0.14
-
0.14
0.13
-
0.13 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.68
0.57
4.80
8.87
0.02
0.10
-
0.10
0.09
-
0.09 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
- -
Off-Roa
0.12
0.10
0.88
1.62
< 0.005
0.02
-
0.02
0.02
-
0.02 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Worker
0.22
0.22
0.17
4.38
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.76
0.33
0.01
0.02
0.29
0.30
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.20
0.15
0.17
2.44
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.82
0.35
0.01
0.02
0.29
0.30
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1.717
1.717
0.07
0.01
- 1.723
0.00
0.00
0.00
0.00 0.00
0.00
284
284
0.01
< 0.005 -
285
0.00 0.00 0.00 0.00 0.00 0.00
1,269
1,269
0.01
0.01
0.84
1,272
735
735
< 0.005
0.10
0.46
767
0.00
0.00
0.00
0.00
0.00
0.00
1,084
1,084
0.01
0.01
0.02
1,086
736
736
< 0.005
0.10
0.01
768
0.00
0.00
0.00
0.00
0.00
0.00
21 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Average - - - - - - -
-
-
- - -
Daily
Worker 0.15 0.11 0.12 2.22 0.00 0.00 0.97
0.97
0.00
0.23 0.23 -
Vendor 0.02 0.02 0.57 0.24 0.01 0.01 0.21
0.22
0.01
0.06 0.06 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00 0.00 -
Annual - - - - - - -
-
-
- - -
Worker 0.03 0.02 0.02 0.40 0.00 0.00 0.18
0.18
0.00
0.04 0.04 -
Vendor < 0.005 < 0.005 0.10 0.04 < 0.005 < 0.005 0.04
0.04
< 0.005
0.01 0.01 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00 0.00 -
3.15. Building Construction (2041) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - -
-
-
- - -
Daily, - - - - - - -
-
-
- - -
Summer
(Max)
Off-Roa 0.95 0.80 6.65 12.3 0.02 0.14 -
0.14
0.13
- 0.13 -
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00 0.00 -
truck
Daily, - - - - - - -
-
-
- - -
Winter
(Max)
Off-Roa 0.95 0.80 6.65 12.3 0.02 0.14 -
0.14
0.13
- 0.13 -
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00 0.00 -
truck
829
829
0.01
< 0.005
0.26
831
527
527
< 0.005
0.07
0.14
549
0.00
0.00
0.00
0.00
0.00
0.00
137
137
< 0.005
< 0.005
0.04
138
87.3
87.3
< 0.005
0.01
0.02
91.0
0.00
0.00
0.00
0.00
0.00
0.00
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
22 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.68
0.57
4.75
8.81
0.02
0.10
-
0.10
0.09
-
0.09 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.12
0.10
0.87
1.61
< 0.005
0.02
-
0.02
0.02
-
0.02 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.21
0.17
0.13
4.24
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.75
0.32
0.01
0.02
0.29
0.30
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.20
0.15
0.17
2.38
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.81
0.34
0.01
0.02
0.29
0.30
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.14
0.11
0.09
2.14
0.00
0.00
0.97
0.97
0.00
0.23
0.23 -
Vendor
0.02
0.02
0.56
0.24
0.01
0.01
0.20
0.22
0.01
0.06
0.06 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
23 / 79
1,712 1,712 0.07 0.01 - 1,718
0.00 0.00 0.00 0.00 0.00 0.00
283 283 0.01 < 0.005 - 284
0.00 0.00 0.00 0.00 0.00 0.00
1,262
1,262
0.01
0.01
0.73
1,264
723
723
< 0.005
0.10
0.37
755
0.00
0.00
0.00
0.00
0.00
0.00
1,078
1,078
0.01
0.01
0.02
1,080
725
725
< 0.005
0.10
0.01
756
0.00
0.00
0.00
0.00
0.00
0.00
822
822
< 0.005
< 0.005
0.22
824
517
517
< 0.005
0.07
0.11
539
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Worker 0.03 0.02 0.02 0.39 0.00 0.00 0.18 0.18 0.00 0.04 0.04 - 136 136 < 0.005
< 0.005 0.04 136
Vendor < 0.005 < 0.005 0.10 0.04 < 0.005 < 0.005 0.04 0.04 < 0.005 0.01 0.01 - 85.6 85.6 < 0.005
0.01 0.02 89.3
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00
0.00 0.00 0.00
3.17. Building Construction (2042) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - -
- - -
Dail - - - - - - - - - - - - - - -
- - -
yI
Summer
(Max)
Off-Roa
0.95
0.79
6.60
12.3
0.02
0.13
- 0.13
0.12
- 0.12 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.95
0.79
6.60
12.3
0.02
0.13
- 0.13
0.12
- 0.12 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.68
0.57
4.72
8.81
0.02
0.10
- 0.10
0.09
- 0.09 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,712
1,712
0.07
0.01
- 1,718
24/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Annual
Off-Roa
0.12
0.10
0.86
1.61
< 0.005
0.02
-
0.02
0.02
-
0.02 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.20
0.16
0.13
4.15
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.74
0.32
0.01
0.02
0.29
0.30
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.19
0.14
0.13
2.33
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.81
0.34
0.01
0.02
0.29
0.30
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.14
0.11
0.09
2.08
0.00
0.00
0.97
0.97
0.00
0.23
0.23 -
Vendor
0.02
0.02
0.56
0.24
0.01
0.01
0.20
0.22
0.01
0.06
0.06 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.03
0.02
0.02
0.38
0.00
0.00
0.18
0.18
0.00
0.04
0.04 -
Vendor
< 0.005
< 0.005
0.10
0.04
< 0.005
< 0.005
0.04
0.04
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.19. Building Construction (2043) - Unmitigated
283 283 0.01 < 0.005 - 284
0.00 0.00 0.00 0.00 0.00 0.00
1,255
1,255
0.01
0.01
0.62
1,258
713
713
< 0.005
0.10
0.30
742
0.00
0.00
0.00
0.00
0.00
0.00
1,073
1,073
0.01
0.01
0.02
1,075
714
714
< 0.005
0.10
0.01
743
0.00
0.00
0.00
0.00
0.00
0.00
818
818
< 0.005
< 0.005
0.19
819
509
509
< 0.005
0.07
0.09
530
0.00
0.00
0.00
0.00
0.00
0.00
135
135
< 0.005
< 0.005
0.03
136
84.3
84.3
< 0.005
0.01
0.02
87.8
0.00
0.00
0.00
0.00
0.00
0.00
25 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Dail - - - - - - - - - - - - - - - - - -
YI
Summer
(Max)
Off-Roa
0.94
0.79
6.55
12.3
0.02
0.13
-
0.13
0.12
-
0.12 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa
0.94
0.79
6.55
12.3
0.02
0.13
-
0.13
0.12
-
0.12 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.67
0.56
4.68
8.77
0.02
0.09
-
0.09
0.09
-
0.09 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.12
0.10
0.85
1.60
< 0.005
0.02
-
0.02
0.02
-
0.02 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
2,397 2,397 0.10 0.02 - 2,405
0.00 0.00 0.00 0.00 0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,712
1,712
0.07
0.01
- 1,718
0.00
0.00
0.00
0.00 0.00
0.00
283
283
0.01
< 0.005 -
284
0.00 0.00 0.00 0.00 0.00 0.00
26 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Offsite
Daily,
Summer
(Max)
Worker
0.20
0.16
0.13
4.06
0.00
0.00
1.36
1.36
0.00
0.32
Vendor
0.03
0.03
0.74
0.32
0.01
0.01
0.28
0.29
0.01
0.08
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
Winter
(Max)
Worker
0.19
0.14
0.13
2.28
0.00
0.00
1.36
1.36
0.00
0.32
Vendor
0.03
0.03
0.80
0.34
0.01
0.01
0.28
0.29
0.01
0.08
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Average
-
-
-
-
-
-
-
-
-
-
Daily
Worker
0.13
0.10
0.09
2.04
0.00
0.00
0.97
0.97
0.00
0.23
Vendor
0.02
0.02
0.55
0.23
0.01
0.01
0.20
0.20
0.01
0.06
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Annual
-
-
-
-
-
-
-
-
-
-
Worker
0.02
0.02
0.02
0.37
0.00
0.00
0.18
0.18
0.00
0.04
Vendor
< 0.005
< 0.005
0.10
0.04
< 0.005
< 0.005
0.04
0.04
< 0.005
0.01
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3.21. Building Construction (2044) - Unmitigated
0.32
0.09
0.00
1,249
1,249
0.01
0.01
0.54
1,252
703
703
< 0.005
0.10
0.24
732
0.00
0.00
0.00
0.00
0.00
0.00
0.32 -
1,068
1,068
0.01
0.01
0.01
1,070
0.09 -
704
704
< 0.005
0.10
0.01
733
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
0.23 -
814
814
< 0.005
< 0.005
0.17
816
0.06 -
503
503
< 0.005
0.07
0.07
523
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
0.04 -
135
135
< 0.005
< 0.005
0.03
135
0.01 -
83.2
83.2
< 0.005
0.01
0.01
86.6
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Location TOG I ROG I NOx CO S02 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NE
•
Summer
27 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Off-Roa
0.93
0.78
6.48
12.2
0.02
0.12
-
0.12
0.11
-
0.11 -
d
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily,
-
-
-
-
-
-
-
Winter
(Max)
Off-Roa
0.93
0.78
6.48
12.2
0.02
0.12
-
0.12
0.11
-
0.11 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
Daily
Off-Roa
0.67
0.56
4.64
8.76
0.02
0.09
-
0.09
0.08
-
0.08 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
Off-Roa
0.12
0.10
0.85
1.60
< 0.005
0.02
-
0.02
0.01
-
0.01 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.20
0.15
0.12
4.01
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.73
0.32
0.01
0.01
0.28
0.29
0.01
0.08
0.09 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
28 / 79
2,397
2,397
0.10
0.02
- 2,405
0.00
0.00
0.00
0.00
0.00 0.00
2,397 2,397 0.10 0.02 - 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,717
1,717
0.07
0.01
- 1,723
0.00
0.00
0.00
0.00 0.00
0.00
284
284
0.01
< 0.005 -
285
0.00 0.00 0.00 0.00 0.00 0.00
1,244
1,244
0.01
0.01
0.46
1,247
695
695
< 0.005
0.10
0.19
724
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily,
Winter
(Max)
Worker
0.14
0.14
0.12
2.23
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.79
0.34
0.01
0.01
0.28
0.29
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.13
0.10
0.09
2.01
0.00
0.00
0.97
0.97
0.00
0.23
0.23 -
Vendor
0.02
0.02
0.56
0.24
0.01
0.01
0.20
0.21
0.01
0.06
0.06 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
Worker
0.02
0.02
0.02
0.37
0.00
0.00
0.18
0.18
0.00
0.04
0.04 -
Vendor
< 0.005
< 0.005
0.10
0.04
< 0.005
< 0.005
0.04
0.04
< 0.005
0.01
0.01 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.23.
Building Construction (2045) - Unmitigated
Criteria Pollutants
(Ib/dav for
dailv. ton/vr
for annual)
and GHGs (lb/dav for dailv. MT/vr for annual
1,064
1,064
0.01
0.01
0.01
1,066
696
696
< 0.005
0.10
< 0.005
725
0.00
0.00
0.00
0.00
0.00
0.00
813
813
< 0.005
< 0.005
0.14
814
498
498
< 0.005
0.07
0.06
519
0.00
0.00
0.00
0.00
0.00
0.00
135
135
< 0.005
< 0.005
0.02
135
82.4
82.4
< 0.005
0.01
0.01
85.9
0.00
0.00
0.00
0.00
0.00
0.00
Onsite - - - - - - - - - - - - - - - - - -
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Off-Roa 0.92 0.77 6.42 12.2 0.02 0.12 - 0.12 0.11 - 0.11 - 2,397 2,397 0.10 0.02 - 2,405
d
Equipm
ent
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Daily, - - - - - - - - - - -
Winter
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
29 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Off-Roa
0.92
0.77
6.42
12.2
0.02
0.12
-
0.12
0.11
-
0.11 -
Equipment
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average
-
-
-
-
Daily
Off-Roa
0.45
0.38
3.15
5.97
0.01
0.06
-
0.06
0.05
-
0.05 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.08
0.07
0.58
1.09
< 0.005
0.01
-
0.01
0.01
-
0.01 -
d
Equipm
ent
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.20
0.15
0.12
3.96
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.73
0.32
0.01
0.01
0.28
0.29
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.14
0.13
0.12
2.22
0.00
0.00
1.36
1.36
0.00
0.32
0.32 -
Vendor
0.03
0.03
0.79
0.34
0.01
0.01
0.28
0.29
0.01
0.08
0.09 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
2,397
2,397
0.10
0.02
- 2,405
0.00
0.00
0.00
0.00
0.00 0.00
1,177
1,177
0.05
0.01
- 1,181
0.00 0.00 0.00 0.00 0.00 0.00
195 195 0.01 < 0.005 - 196
1,240
1,240
0.01
0.01
0.39
1,243
687
687
< 0.005
0.10
0.15
716
0.00
0.00
0.00
0.00
0.00
0.00
1,060
1,060
0.01
0.01
0.01
1,062
688
688
< 0.005
0.10
< 0.005
717
0.00
0.00
0.00
0.00
0.00
0.00
30 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Worker 0.07 0.07
0.06 1.38 0.00
0.00 0.66
0.66
0.00
0.16 0.16 -
556
556
< 0.005
< 0.005
0.08
556
Vendor 0.02 0.01
0.38 0.16 < 0.005
< 0.005 0.14
0.14
< 0.005
0.04 0.04 -
338
338
< 0.005
0.05
0.03
352
Hauling 0.00 0.00
0.00 0.00 0.00
0.00 0.00
0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual- -
- - -
- -
-
-
- - -
-
-
-
-
-
-
Worker 0.01 0.01
0.01 0.25 0.00
0.00 0.12
0.12
0.00
0.03 0.03 -
92.0
92.0
< 0.005
< 0.005
0.01
92.1
Vendor < 0.005 < 0.005
0.07 0.03 < 0.005
< 0.005 0.02
0.03
< 0.005
0.01 0.01 -
55.9
55.9
< 0.005
0.01
0.01
58.3
Hauling 0.00 0.00
0.00 0.00 0.00
0.00 0.00
0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.25. Paving (2036)
- Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual)
and GHGs (lb/day for daily, MT/yr for annual)
Onsite - -
- - -
- -
-
-
- - -
-
-
-
-
-
-
Daily, - -
- - -
- -
-
-
- - -
-
-
-
-
-
-
Summer
(Max)
Daily, - -
- - -
- -
-
-
- - -
-
-
-
-
-
-
Winter
(Max)
Off-Roa 0.63 0.53
5.62 9.78 0.01
0.14 -
0.14
0.13
- 0.13 -
1,511
1,511
0.06
0.01
-
1,516
d
Equipm
ent
Paving 0.00 0.00
- - -
- -
-
-
- - -
-
-
-
-
-
-
Onsite 0.00 0.00
0.00 0.00 0.00
0.00 0.00
0.00
0.00
0.00 0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Average - -
- - -
- -
-
-
- - -
-
-
-
-
-
-
Daily
Off-Roa 0.10 0.09
0.90 1.57 < 0.005
0.02 -
0.02
0.02
- 0.02 -
242
242
0.01
< 0.005
-
243
d
Equipm
ent
Paving 0.00 0.00
- - -
- -
-
-
- - -
-
-
-
-
-
-
31 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.02
0.02
0.16
0.29
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Daily,
-
-
-
-
-
-
-
-
Winter
(Max)
Worker
0.03
0.03
0.03
0.40
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
0.01
< 0.005
0.08
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.01
0.00
0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.27. Paving (2037) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
32 / 79
0.00
0.00
0.00
0.00 0.00
0.00
40.1
40.1
< 0.005
< 0.005 -
40.3
0.00 0.00 0.00 0.00 0.00 0.00
160
160
< 0.005
< 0.005
0.01
160
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
27.4
27.4
< 0.005
< 0.005
0.01
27.5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
4.54
4.54
< 0.005
< 0.005
< 0.005
4.55
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
Daily,
Summer
(Max)
Off-Roa
0.61
0.51
5.50
9.77
0.01
0.12
- 0.12
0.11
- 0.11 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.61
0.51
5.50
9.77
0.01
0.12
- 0.12
0.11
- 0.11 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.44
0.37
3.93
6.98
0.01
0.09
- 0.09
0.08
- 0.08 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Annual
-
-
-
-
-
-
- -
-
- - -
Off-Roa
0.08
0.07
0.72
1.27
< 0.005
0.02
- 0.02
0.01
- 0.01 -
d
Equipm
ent
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,079
1,079
0.04
0.01
- 1,083
0.00
0.00
0.00
0.00 0.00
0.00
179
179
0.01
< 0.005 -
179
33 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Paving
0.00
0.00
-
-
-
-
-
-
-
-
- -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.04
0.04
0.02
0.69
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.03
0.03
0.02
0.39
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.02
0.02
0.02
0.35
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.06
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.29. Paving (2038) - Unmitigated
0.00 0.00 0.00 0.00 0.00 0.00
186
186
< 0.005
< 0.005
0.19
186
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
159
159
< 0.005
< 0.005
< 0.005
159
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
121
121
< 0.005
< 0.005
0.06
121
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
20.0
20.0
< 0.005
< 0.005
0.01
20.1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
34/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
- -
-
- - -
Summer
(Max)
Off-Roa
0.59
0.50
5.38
9.76
0.01
0.11
- 0.11
0.10
- 0.10 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.59
0.50
5.38
9.76
0.01
0.11
- 0.11
0.10
- 0.10 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.42
0.36
3.84
6.97
0.01
0.08
- 0.08
0.07
- 0.07 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Annual
-
-
-
-
-
-
- -
-
- - -
Off-Roa
0.08
0.07
0.70
1.27
< 0.005
0.01
- 0.01
0.01
- 0.01 -
d
Equipm
ent
Paving 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,079
1,079
0.04
0.01
- 1,083
0.00
0.00
0.00
0.00 0.00
0.00
179
179
0.01
< 0.005 -
179
35 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily,
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Worker
0.03
0.03
0.02
0.67
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
186
186
< 0.005
< 0.005
0.16
186
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
Winter
(Max)
Worker
0.03
0.03
0.02
0.38
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
159
159
< 0.005
< 0.005
< 0.005
159
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Worker
0.02
0.02
0.02
0.34
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
121
121
< 0.005
< 0.005
0.05
121
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Worker
< 0.005
< 0.005
< 0.005
0.06
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
20.0
20.0
< 0.005
< 0.005
0.01
20.1
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.31. Paving (2039) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
36 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
- -
-
- - -
Summer
(Max)
Off-Roa
0.58
0.49
5.31
9.75
0.01
0.11
- 0.11
0.10
- 0.10 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.58
0.49
5.31
9.75
0.01
0.11
- 0.11
0.10
- 0.10 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.42
0.35
3.79
6.97
0.01
0.08
- 0.08
0.07
- 0.07 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Annual
-
-
-
-
-
-
- -
-
- - -
Off-Roa
0.08
0.06
0.69
1.27
< 0.005
0.01
- 0.01
0.01
- 0.01 -
d
Equipm
ent
Paving 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,079
1,079
0.04
0.01
- 1,083
0.00
0.00
0.00
0.00 0.00
0.00
179
179
0.01
< 0.005 -
179
37 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily,
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Worker
0.03
0.03
0.02
0.65
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
184
184
< 0.005
< 0.005
0.14
185
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
Winter
(Max)
Worker
0.03
0.02
0.02
0.37
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
158
158
< 0.005
< 0.005
< 0.005
158
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Worker
0.02
0.02
0.02
0.33
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
120
120
< 0.005
< 0.005
0.04
120
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Worker
< 0.005
< 0.005
< 0.005
0.06
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
19.9
19.9
< 0.005
< 0.005
0.01
19.9
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.33. Paving (2040) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
38 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
- -
-
- - -
Summer
(Max)
Off-Roa
0.58
0.49
5.27
9.75
0.01
0.11
- 0.11
0.10
- 0.10 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.58
0.49
5.27
9.75
0.01
0.11
- 0.11
0.10
- 0.10 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.41
0.35
3.78
6.98
0.01
0.08
- 0.08
0.07
- 0.07 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Annual
-
-
-
-
-
-
- -
-
- - -
Off-Roa
0.08
0.06
0.69
1.27
< 0.005
0.01
- 0.01
0.01
- 0.01 -
d
Equipm
ent
Paving 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,082
1,082
0.04
0.01
- 1,086
0.00
0.00
0.00
0.00 0.00
0.00
179
179
0.01
< 0.005 -
180
39 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily,
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Worker
0.03
0.03
0.02
0.63
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
183
183
< 0.005
< 0.005
0.12
184
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
Winter
(Max)
Worker
0.03
0.02
0.02
0.35
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
157
157
< 0.005
< 0.005
< 0.005
157
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Worker
0.02
0.02
0.02
0.32
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
120
120
< 0.005
< 0.005
0.04
120
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Worker
< 0.005
< 0.005
< 0.005
0.06
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
19.8
19.8
< 0.005
< 0.005
0.01
19.9
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.35. Paving (2041) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
40 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
- -
-
- - -
Summer
(Max)
Off-Roa
0.57
0.48
5.20
9.74
0.01
0.10
- 0.10
0.09
- 0.09 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.57
0.48
5.20
9.74
0.01
0.10
- 0.10
0.09
- 0.09 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.41
0.34
3.72
6.96
0.01
0.07
- 0.07
0.07
- 0.07 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Annual
-
-
-
-
-
-
- -
-
- - -
Off-Roa
0.07
0.06
0.68
1.27
< 0.005
0.01
- 0.01
0.01
- 0.01 -
d
Equipm
ent
Paving 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,079
1,079
0.04
0.01
- 1,083
0.00
0.00
0.00
0.00 0.00
0.00
179
179
0.01
< 0.005 -
179
41 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily,
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Worker
0.03
0.02
0.02
0.61
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
182
182
< 0.005
< 0.005
0.10
183
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
Winter
(Max)
Worker
0.03
0.02
0.02
0.34
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
156
156
< 0.005
< 0.005
< 0.005
156
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Worker
0.02
0.02
0.01
0.31
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
119
119
< 0.005
< 0.005
0.03
119
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Worker
< 0.005
< 0.005
< 0.005
0.06
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
19.6
19.6
< 0.005
< 0.005
0.01
19.7
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.37. Paving (2042) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
42 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
- -
-
- - -
Summer
(Max)
Off-Roa
0.56
0.47
5.16
9.73
0.01
0.10
- 0.10
0.09
- 0.09 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.56
0.47
5.16
9.73
0.01
0.10
- 0.10
0.09
- 0.09 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.40
0.34
3.68
6.95
0.01
0.07
- 0.07
0.06
- 0.06 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Annual
-
-
-
-
-
-
- -
-
- - -
Off-Roa
0.07
0.06
0.67
1.27
< 0.005
0.01
- 0.01
0.01
- 0.01 -
d
Equipm
ent
Paving 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,079
1,079
0.04
0.01
- 1,083
0.00
0.00
0.00
0.00 0.00
0.00
179
179
0.01
< 0.005 -
179
43 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily,
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Worker
0.03
0.02
0.02
0.60
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
181
181
< 0.005
< 0.005
0.09
182
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
Winter
(Max)
Worker
0.03
0.02
0.02
0.34
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
155
155
< 0.005
< 0.005
< 0.005
155
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Worker
0.02
0.02
0.01
0.30
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
118
118
< 0.005
< 0.005
0.03
118
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Worker
< 0.005
< 0.005
< 0.005
0.05
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
19.5
19.5
< 0.005
< 0.005
< 0.005
19.6
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.39. Paving (2043) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
44/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
- -
-
- - -
Summer
(Max)
Off-Roa
0.56
0.47
5.12
9.72
0.01
0.09
- 0.09
0.08
- 0.08 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.56
0.47
5.12
9.72
0.01
0.09
- 0.09
0.08
- 0.08 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.40
0.33
3.66
6.95
0.01
0.06
- 0.06
0.06
- 0.06 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Annual
-
-
-
-
-
-
- -
-
- - -
Off-Roa
0.07
0.06
0.67
1.27
< 0.005
0.01
- 0.01
0.01
- 0.01 -
d
Equipm
ent
Paving 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,079
1,079
0.04
0.01
- 1,083
0.00
0.00
0.00
0.00 0.00
0.00
179
179
0.01
< 0.005 -
179
45 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily,
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Worker
0.03
0.02
0.02
0.59
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
180
180
< 0.005
< 0.005
0.08
181
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
Winter
(Max)
Worker
0.03
0.02
0.02
0.33
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
154
154
< 0.005
< 0.005
< 0.005
155
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Worker
0.02
0.01
0.01
0.29
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
118
118
< 0.005
< 0.005
0.02
118
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Worker
< 0.005
< 0.005
< 0.005
0.05
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
19.5
19.5
< 0.005
< 0.005
< 0.005
19.5
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.41. Paving (2044) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
46 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
- -
-
- - -
Summer
(Max)
Off-Roa
0.55
0.46
5.11
9.72
0.01
0.09
- 0.09
0.08
- 0.08 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.55
0.46
5.11
9.72
0.01
0.09
- 0.09
0.08
- 0.08 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.39
0.33
3.66
6.96
0.01
0.06
- 0.06
0.06
- 0.06 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Annual
-
-
-
-
-
-
- -
-
- - -
Off-Roa
0.07
0.06
0.67
1.27
< 0.005
0.01
- 0.01
0.01
- 0.01 -
d
Equipm
ent
Paving 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
1,082
1,082
0.04
0.01
- 1,086
0.00
0.00
0.00
0.00 0.00
0.00
179
179
0.01
< 0.005 -
180
47 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily,
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Worker
0.03
0.02
0.02
0.58
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
180
180
< 0.005
< 0.005
0.07
180
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
Winter
(Max)
Worker
0.02
0.02
0.02
0.32
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
154
154
< 0.005
< 0.005
< 0.005
154
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Worker
0.02
0.01
0.01
0.29
0.00
0.00
0.14
0.14
0.00
0.03
0.03 -
117
117
< 0.005
< 0.005
0.02
118
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Worker
< 0.005
< 0.005
< 0.005
0.05
0.00
0.00
0.03
0.03
0.00
0.01
0.01 -
19.4
19.4
< 0.005
< 0.005
< 0.005
19.5
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
3.43. Paving (2045) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
48 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily,
-
-
-
-
-
-
- -
-
- - -
Summer
(Max)
Off-Roa
0.54
0.45
5.07
9.71
0.01
0.08
- 0.08
0.07
- 0.07 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Daily,
-
-
-
-
-
-
- -
-
- - -
Winter
(Max)
Off-Roa
0.54
0.45
5.07
9.71
0.01
0.08
- 0.08
0.07
- 0.07 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Average
-
-
-
-
-
-
- -
-
- - -
Daily
Off-Roa
0.26
0.22
2.49
4.77
0.01
0.04
- 0.04
0.03
- 0.03 -
d
Equipm
ent
Paving
0.00
0.00
-
-
-
-
- -
-
- - -
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00 -
truck
Annual
-
-
-
-
-
-
- -
-
- - -
Off-Roa
0.05
0.04
0.45
0.87
< 0.005
0.01
- 0.01
0.01
- 0.01 -
d
Equipm
ent
Paving 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00 0.00 0.00 0.00 0.00 0.00
1,511 1,511 0.06 0.01 - 1,516
0.00
0.00
0.00
0.00
0.00 0.00
742
742
0.03
0.01
- 745
0.00
0.00
0.00
0.00 0.00
0.00
123
123
< 0.005
< 0.005 -
123
49 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.03
0.02
0.02
0.57
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.02
0.02
0.02
0.32
0.00
0.00
0.20
0.20
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.01
0.01
0.01
0.20
0.00
0.00
0.10
0.10
0.00
0.02
0.02 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
< 0.005
< 0.005
< 0.005
0.04
0.00
0.00
0.02
0.02
0.00
< 0.005
< 0.005 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.45. Architectural Coating (2036) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - -
0.00
0.00
0.00
0.00
0.00
0.00
179
179
< 0.005
< 0.005
0.06
179
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
153
153
< 0.005
< 0.005
< 0.005
153
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
80.2
80.2
< 0.005
< 0.005
0.01
80.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
13.3
13.3
< 0.005
< 0.005
< 0.005
13.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
50 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily, -
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Summer
(Max)
Daily, -
-
-
-
-
- -
-
- -
-
Winter
(Max)
Off-Roa 0.11
0.09
0.75
1.10
< 0.005
0.01 -
0.01
< 0.005 -
< 0.005 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.49
1.49
-
-
-
- -
-
- -
- -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Daily
Off-Roa 0.02
0.01
0.12
0.18
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
21.4
21.4
< 0.005
< 0.005 -
21.5
d
Equipm
ent
Architect 0.24
0.24
-
-
-
- -
-
- -
- -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Annual
Off-Roa < 0.005
< 0.005
0.02
0.03
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
3.55
3.55
< 0.005
< 0.005 -
3.56
d
Equipm
ent
Architect 0.04
0.04
-
-
-
- -
-
- -
- -
-
-
-
- -
-
ural
Coating
s
51 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite - - - - - -
-
-
-
-
- -
Daily, - - - - - -
-
-
-
-
- -
Summer
(Max)
Daily,
Winter
(Max)
Worker 0.05 0.05 0.04 0.56 0.00 0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00
0.00 -
Average - - - - - -
-
-
-
-
- -
Daily
Worker 0.01 0.01 0.01 0.11 0.00 0.00
0.04
0.04
0.00
0.01
0.01 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00
0.00 -
Annual - - - - - -
-
-
-
-
- -
Worker < 0.005 < 0.005 < 0.005 0.02 0.00 0.00
0.01
0.01
0.00
< 0.005
< 0.005 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00
0.00 -
3.47. Architectural Coating (2037) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and
GHGs (lb/day for daily, MT/yr for annual
Onsite - - - - - -
-
-
-
-
- -
Daily, - - - - - -
-
-
-
-
- -
Summer
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
222
222
< 0.005
< 0.005
0.01
222
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
38.0
38.0
< 0.005
< 0.005
0.02
38.1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6.28
6.28
< 0.005
< 0.005
< 0.005
6.30
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
52/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Off-Roa 0.11
0.09
0.75
1.09
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.49
1.49
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Daily, -
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Winter
(Max)
Off-Roa 0.11
0.09
0.75
1.09
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.49
1.49
-
-
-
- -
-
- -
- -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Daily
Off-Roa 0.08
0.06
0.53
0.78
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
95.4
95.4
< 0.005
< 0.005 -
95.7
d
Equipm
ent
Architect 1.06
1.06
-
-
-
- -
-
- -
- -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Annual
53 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Off-Roa
0.01
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
Architect
0.19
0.19
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.05
0.05
0.03
0.95
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
Winter
(Max)
Worker
0.04
0.04
0.03
0.54
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.03
0.03
0.02
0.48
0.00
0.00
0.19
0.19
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
< 0.005
0.09
0.00
0.00
0.04
0.04
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
15.8 15.8 < 0.005 < 0.005 - 15.8
0.00 0.00 0.00 0.00 0.00 0.00
257
257
< 0.005
< 0.005
0.26
258
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
220
220
< 0.005
< 0.005
0.01
220
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
167
167
< 0.005
< 0.005
0.08
168
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
27.7
27.7
< 0.005
< 0.005
0.01
27.8
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
54/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
3.49. Architectural Coating (2038) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, -
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Summer
(Max)
Off-Roa 0.11
0.09
0.75
1.09
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.49
1.49
-
-
-
- -
-
- -
- -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Daily,
Winter
(Max)
Off-Roa 0.11
0.09
0.75
1.09
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.49
1.49
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average -
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Daily
Off-Roa 0.08
0.06
0.53
0.78
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
95.4
95.4
< 0.005
< 0.005 -
95.7
d
Equipm
ent
55 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Architect 1.06
1.06
-
-
-
-
-
-
-
-
- -
Coatings
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
Off-Roa
0.01
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect
0.19
0.19
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.05
0.05
0.03
0.93
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.04
0.04
0.03
0.53
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.03
0.03
0.02
0.47
0.00
0.00
0.19
0.19
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
56 / 79
0.00 0.00 0.00 0.00 0.00 0.00
15.8 15.8 < 0.005 < 0.005 - 15.8
0.00 0.00 0.00 0.00 0.00 0.00
257
257
< 0.005
< 0.005
0.23
258
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
220
220
< 0.005
< 0.005
0.01
220
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
168
168
< 0.005
< 0.005
0.07
168
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Worker 0.01 0.01 < 0.005 0.09 0.00 0.00 0.04 0.04 0.00
0.01 0.01 -
27.7
27.7
< 0.005
< 0.005 0.01
27.8
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
3.51. Architectural Coating (2039) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - -
- - -
-
-
-
- -
-
Daily, - - - - - - - - -
- - -
-
-
-
- -
-
Summer
(Max)
Off-Roa 0.11 0.09 0.74 1.09 < 0.005 < 0.005 - < 0.005 < 0.005
- < 0.005 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.49 1.49 - - - - - - -
- - -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Daily,
Winter
(Max)
Off-Roa 0.11 0.09 0.74 1.09 < 0.005 < 0.005 - < 0.005 < 0.005
- < 0.005 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.49 1.49
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
57 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa
0.08
0.06
0.53
0.78
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect
1.06
1.06
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
Off-Roa
0.01
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect
0.19
0.19
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
-
-
-
-
-
-
-
-
-
-
- -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker
0.05
0.05
0.03
0.90
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.04
0.03
0.03
0.51
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
58 / 79
95.4 95.4 < 0.005 < 0.005 - 95.7
0.00
0.00
0.00
0.00 0.00
0.00
15.8
15.8
< 0.005
< 0.005 -
15.8
0.00 0.00 0.00 0.00 0.00 0.00
255
255
< 0.005
< 0.005
0.20
256
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
218 218 < 0.005 < 0.005 0.01 219
0.00 0.00 0.00 0.00 0.00 0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
-
-
-
-
-
-
-
-
-
-
- -
Daily
Worker
0.03
0.03
0.02
0.46
0.00
0.00
0.19
0.19
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
0.01
< 0.005
0.08
0.00
0.00
0.04
0.04
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.53. Architectural Coating (2040) - Unmitigated
0.00
0.00
0.00
0.00
0.00
0.00
166
166
< 0.005
< 0.005
0.06
167
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
27.5
27.5
< 0.005
< 0.005
0.01
27.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - - - - - - - -
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Off-Roa 0.11 0.09 0.74 1.09 < 0.005 < 0.005 - < 0.005 < 0.005 - < 0.005 - 134 134 0.01 < 0.005 - 134
d
Equipm
ent
Architect 1.49 1.49 - - - - - - - - -
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
truck
Daily, - - - - - - - - - - -
Winter
(Max)
0.00 0.00 0.00 0.00 0.00 0.00
59 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Off-Roa 0.11
0.09
0.74
1.09
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
134
134
0.01
< 0.005
-
134
d
Equipm
Architect 1.49
1.49
-
-
-
-
-
-
-
-
- -
-
-
-
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Average -
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Off-Roa 0.08
0.06
0.53
0.78
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
95.6
95.6
< 0.005
< 0.005
-
96.0
d
Equipm
ent
Architect 1.07
1.07
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Annual
Off-Roa 0.01
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
15.8
15.8
< 0.005
< 0.005
-
15.9
d
Equipm
ent
Architect 0.19
0.19
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
truck
Offsite -
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily, -
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Summer
(Max)
Worker 0.04
0.04
0.03
0.88
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
254
254
< 0.005
< 0.005
0.17
254
60 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.04
0.03
0.03
0.49
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.03
0.02
0.02
0.44
0.00
0.00
0.19
0.19
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
< 0.005
< 0.005
0.08
0.00
0.00
0.04
0.04
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.55. Architectural Coating (2041) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite -
Daily,
Summer
(Max)
Off-Roa 0.11 0.09 0.74 1.09 < 0.005 < 0.005 -
d
Equipm
ent
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
217
217
< 0.005
< 0.005
< 0.005
217
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
166
166
< 0.005
< 0.005
0.05
166
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
27.4
27.4
< 0.005
< 0.005
0.01
27.5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
< 0.005 < 0.005 - < 0.005 - 134 134 0.01 < 0.005 - 134
61 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Architect 1.49
1.49
-
-
-
- -
-
- -
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
truck
Daily, -
-
-
-
-
- -
-
- -
- -
Winter
(Max)
Off-Roa 0.11
0.09
0.74
1.09
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
d
Equipm
ent
Architect 1.49
1.49
- -
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
truck
Average
Daily
Off-Roa 0.08
0.06
0.53
0.78
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
d
Equipm
ent
Architect 1.06
1.06
-
-
-
- -
-
- -
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
truck
Annual -
-
-
-
-
- -
-
- -
- -
Off-Roa 0.01
0.01
0.10
0.14
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
d
Equipm
ent
0.00 0.00 0.00 0.00 0.00 0.00
134 134 0.01 < 0.005 - 134
0.00
0.00
0.00
0.00 0.00
0.00
95.4
95.4
< 0.005
< 0.005 -
95.7
0.00
0.00
0.00
0.00 0.00
0.00
15.8
15.8
< 0.005
< 0.005 -
15.8
62 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Architect 0.19 0.19
ural
Coating
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Worker
0.04
0.03
0.03
0.85
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.04
0.03
0.03
0.48
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.03
0.02
0.02
0.43
0.00
0.00
0.19
0.19
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
-
-
-
-
-
-
-
-
-
-
- -
Worker
0.01
< 0.005
< 0.005
0.08
0.00
0.00
0.04
0.04
0.00
0.01
0.01 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
3.57. Architectural Coating (2042) - Unmitigated
Criteria
Pollutants (lb/day for daily,
ton/yr
for
annual)
and GHGs (lb/day for daily, MT/yr for annual)
63 / 79
0.00 0.00 0.00 0.00 0.00 0.00
252
252
< 0.005
< 0.005
0.15
253
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
216
216
< 0.005
< 0.005
< 0.005
216
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
164
164
< 0.005
< 0.005
0.04
165
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
27.2
27.2
< 0.005
< 0.005
0.01
27.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
Daily, -
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Summer
(Max)
Off-Roa 0.11
0.09
0.74
1.09
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.49
1.49
-
-
-
- -
-
- -
- -
-
-
-
- -
-
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Daily, -
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Winter
(Max)
Off-Roa 0.11
0.09
0.74
1.09
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
134
134
0.01
< 0.005 -
134
d
Equipm
ent
Architect 1.49
1.49
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00 0.00
0.00 -
0.00
0.00
0.00
0.00 0.00
0.00
truck
Average
Daily
Off-Roa 0.08
0.06
0.53
0.78
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
95.4
95.4
< 0.005
< 0.005 -
95.7
d
Equipm
ent
Architect 1.06
1.06
-
-
-
- -
-
- -
- -
-
-
-
- -
-
ural
Coating
s
64/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
-
-
-
-
-
-
-
-
-
-
- -
Off-Roa
0.01
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect
0.19
0.19
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Worker
0.04
0.03
0.03
0.83
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily,
-
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker
0.04
0.03
0.03
0.47
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker
0.03
0.02
0.02
0.42
0.00
0.00
0.19
0.19
0.00
0.05
0.05 -
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Annual
Worker
0.01
< 0.005
< 0.005
0.08
0.00
0.00
0.04
0.04
0.00
0.01
0.01 -
65 / 79
0.00 0.00 0.00 0.00 0.00 0.00
15.8 15.8 < 0.005 < 0.005 - 15.8
0.00 0.00 0.00 0.00 0.00 0.00
251
251
< 0.005
< 0.005
0.12
252
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
215
215
< 0.005
< 0.005
< 0.005
215
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
164
164
< 0.005
< 0.005
0.04
164
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
27.1
27.1
< 0.005
< 0.005
0.01
27.1
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00 0.00 0.00 0.00
3.59. Architectural Coating (2043) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite -
- - - - - - - - - - - - - -
- - -
Daily, -
- - - - - - - - - - - - - -
- - -
Summer
(Max)
Off-Roa 0.11
0.09 0.74 1.09 < 0.005 < 0.005 - < 0.005 < 0.005 - < 0.005 - 134 134 0.01
< 0.005 - 134
d
Equipm
ent
Architect 1.49
1.49
ural
Coating
s
Onsite 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00
0.00 0.00 0.00
truck
Daily,
Winter
(Max)
Off-Roa 0.11
0.09 0.74 1.09 < 0.005 < 0.005 - < 0.005 < 0.005 - < 0.005 - 134 134 0.01
< 0.005 - 134
d
Equipm
ent
Architect 1.49
1.49 -
ural
Coating
s
Onsite 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00
0.00 0.00 0.00
truck
Average -
- - - - - - - - - - - - - -
- - -
Daily
66 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Off-Roa 0.08
0.06
0.53
0.78
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
Equipment
Architect 1.06
1.06
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual -
-
-
-
-
-
-
-
-
-
- -
Off-Roa 0.01
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect 0.19
0.19
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite -
-
-
-
-
-
-
-
-
-
- -
Daily, -
-
-
-
-
-
-
-
-
-
- -
Summer
(Max)
Worker 0.04
0.03
0.03
0.81
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Daily, -
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Worker 0.04
0.03
0.03
0.46
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Average -
-
-
-
-
-
-
-
-
-
- -
Daily
Worker 0.03
0.02
0.02
0.41
0.00
0.00
0.19
0.19
0.00
0.05
0.05 -
67 / 79
95.4 95.4 < 0.005 < 0.005 - 95.7
0.00
0.00
0.00
0.00 0.00
0.00
15.8
15.8
< 0.005
< 0.005 -
15.8
0.00 0.00 0.00 0.00 0.00 0.00
250
250
< 0.005
< 0.005
0.11
250
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
214
214
< 0.005
< 0.005
< 0.005
214
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
163
163
< 0.005
< 0.005
0.03
163
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
Annual - - - - - - - - - - - -
Worker < 0.005 < 0.005 < 0.005 0.07 0.00 0.00 0.04 0.04 0.00 0.01 0.01 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
3.61. Architectural Coating (2044) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Onsite - - - - - - - - - - - -
Daily, - - - - - - - - - - - -
Summer
(Max)
Off-Roa 0.11 0.09 0.74 1.09 < 0.005 < 0.005 - < 0.005 < 0.005 - < 0.005 -
d
Equipm
ent
Architect 1.49 1.49 - - - - - - - - - -
ural
Coating
s
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -
truck
Daily,
Winter
(Max)
Off-Roa 0.11 0.09 0.74 1.09 < 0.005 < 0.005 - < 0.005 < 0.005 - < 0.005 -
d
Equipm
ent
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26.9
26.9
< 0.005
< 0.005
0.01
27.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
134 134 0.01 < 0.005 - 134
0.00 0.00 0.00 0.00 0.00 0.00
134 134 0.01 < 0.005 - 134
68 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Architect 1.49
1.49
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average -
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa 0.08
0.06
0.53
0.78
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect 1.07
1.07
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual -
-
-
-
-
-
-
-
-
-
- -
Off-Roa 0.01
0.01
0.10
0.14
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect 0.19
0.19
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Offsite
Daily,
Summer
(Max)
Worker 0.04
0.03
0.02
0.80
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
Vendor 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
69 / 79
0.00
0.00
0.00
0.00 0.00
0.00
95.6
95.6
< 0.005
< 0.005 -
96.0
0.00
0.00
0.00
0.00 0.00
0.00
15.8
15.8
< 0.005
< 0.005 -
15.9
0.00 0.00 0.00 0.00 0.00 0.00
249
249
< 0.005
< 0.005
0.09
249
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily, - - - - - - -
-
-
-
- -
Winter
(Max)
Worker 0.03 0.03 0.02 0.45 0.00 0.00 0.27
0.27
0.00
0.06
0.06 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
Average
Daily
Worker 0.03 0.02 0.02 0.40 0.00 0.00 0.19
0.19
0.00
0.05
0.05 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
Annual
Worker < 0.005 < 0.005 < 0.005 0.07 0.00 0.00 0.04
0.04
0.00
0.01
0.01 -
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00
0.00
0.00
0.00 -
3.63. Architectural Coating (2045) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual
Onsite - - - - - - -
-
-
-
- -
Daily, - - - - - - -
-
-
-
- -
Summer
(Max)
Off-Roa 0.11 0.09 0.74 1.09 < 0.005 < 0.005 -
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect 1.49 1.49 - -
-
-
-
- -
ural
Coating
s
213
213
< 0.005
< 0.005
< 0.005
213
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
163
163
< 0.005
< 0.005
0.03
163
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26.9
26.9
< 0.005
< 0.005
< 0.005
27.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
134 134 0.01 < 0.005 - 134
70 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Daily, -
-
-
-
-
-
-
-
-
-
- -
Winter
(Max)
Off-Roa 0.11
0.09
0.74
1.09
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect 1.49
1.49
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Average -
-
-
-
-
-
-
-
-
-
- -
Daily
Off-Roa 0.05
0.04
0.36
0.54
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect 0.73
0.73
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
Annual
Off-Roa 0.01
0.01
0.07
0.10
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005 -
d
Equipm
ent
Architect 0.13
0.13
-
-
-
-
-
-
-
-
- -
ural
Coating
s
Onsite 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
truck
71 / 79
0.00 0.00 0.00 0.00 0.00 0.00
134 134 0.01 < 0.005 - 134
0.00
0.00
0.00
0.00 0.00
0.00
65.6
65.6
< 0.005
< 0.005 -
65.8
0.00
0.00
0.00
0.00 0.00
0.00
10.9
10.9
< 0.005
< 0.005 -
10.9
0.00 0.00 0.00 0.00 0.00 0.00
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Offsite
Daily,
Summer
(Max)
Worker
0.04
0.03
0.02
0.79
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
248
248
< 0.005
< 0.005
0.08
249
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Daily,
Winter
(Max)
Worker
0.03
0.03
0.02
0.44
0.00
0.00
0.27
0.27
0.00
0.06
0.06 -
212
212
< 0.005
< 0.005
< 0.005
212
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Average
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Daily
Worker
0.01
0.01
0.01
0.28
0.00
0.00
0.13
0.13
0.00
0.03
0.03 -
111
111
< 0.005
< 0.005
0.02
111
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Annual-
-
-
-
-
-
-
-
-
-
- -
-
-
-
-
-
-
Worker
< 0.005
< 0.005
< 0.005
0.05
0.00
0.00
0.02
0.02
0.00
0.01
0.01 -
18.4
18.4
< 0.005
< 0.005
< 0.005
18.4
Vendor
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Hauling
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
4. Operations Emissions Details
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
M 0
wwwwommmmmmm
72 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total — — — — — — — — — — — — — —
Daily, — — — —
Winter
(Max)
Total — — — — — — — — — — — — — — — — — —
Annual— — — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — — —
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — — — — — — — — — — — — —
Summer
(Max)
Total — — — — — — — — — — — — — — — — — —
Daily, — — — — — — — — — — — — — — — — — —
Winter
(Max)
Total — — — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — — — —
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
73 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Avoided
Subtotal
Sequest
ered
Subtotal
Remove
d
Subtotal
Daily,
Winter
(Max)
Avoided
Subtotal
Sequest
ered
Subtotal
Remove
d
Subtotal
Annual — — — — — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — —
Sequest — — — — — — — — — — — — — — —
ered
Subtotal
Remove
d
Subtotal — — — — — — — — — — — — — — — — — —
74/79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
5. Activity Data
5.1. Construction Schedule
Grading Grading
Building Construction Building Construction
Paving Paving
Architectural Coating Architectural Coating
5.2. Off -Road Equipment
5.2.1. Unmitigated
Grading
Excavators
Diesel
Grading
Graders
Diesel
Grading
Rubber Tired Dozers
Diesel
Grading
Tractors/Loaders/Back
Diesel
hoes
Grading
Scrapers
Diesel
Building Construction
Cranes
Diesel
Building Construction
Forklifts
Diesel
Building Construction
Generator Sets
Diesel
Building Construction
Tractors/Loaders/Back
Diesel
hoes
Building Construction
Welders
Diesel
Paving
Pavers
Diesel
Paving
Paving Equipment
Diesel
Paving
Rollers
Diesel
1 /1 /2035
10/10/2036
5.00
465 -
10/11 /2036
9/8/2045
5.00
2,325 -
10/11 /2036
9/8/2045
5.00
2,325 -
10/11 /2036
9/8/2045
5.00
2,325 -
Average
2.00
8.00
36.0
0.38
Average
1.00
8.00
148
0.41
Average
1.00
8.00
367
0.40
Average
2.00
8.00
84.0
0.37
Average
2.00
8.00
423
0.48
Average
1.00
7.00
367
0.29
Average
3.00
8.00
82.0
0.20
Average
1.00
8.00
14.0
0.74
Average
3.00
7.00
84.0
0.37
Average
1.00
8.00
46.0
0.45
Average
2.00
8.00
81.0
0.42
Average
2.00
8.00
89.0
0.36
Average
2.00
8.00
36.0
0.38
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SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Architectural Coating Air Compressors Diesel
5.3. Construction Vehicles
5.3.1. Unmitigated
Grading
Average 1.00
. M
37.0
0.48
Grading
Worker
20.0
18.5
LDA,LDT1,LDT2
Grading
Vendor
—
10.2
HHDT,MHDT
Grading
Hauling
0.00
20.0
HHDT
Grading
Onsite truck
—
—
HHDT
Building Construction
—
—
—
—
Building Construction
Worker
104
18.5
LDA,LDT1,LDT2
Building Construction
Vendor
33.6
10.2
HHDT,MHDT
Building Construction
Hauling
0.00
20.0
HHDT
Building Construction
Onsite truck
—
—
HHDT
Paving
—
—
—
—
Paving
Worker
15.0
18.5
LDA,LDT1,LDT2
Paving
Vendor
—
10.2
HHDT,MHDT
Paving
Hauling
0.00
20.0
HHDT
Paving
Onsite truck
—
—
HHDT
Architectural Coating
—
—
—
—
Architectural Coating
Worker
20.8
18.5
LDA,LDT1,LDT2
Architectural Coating
Vendor
—
10.2
HHDT,MHDT
Architectural Coating
Hauling
0.00
20.0
HHDT
Architectural Coating
Onsite truck
—
—
HHDT
5.4. Vehicles
76 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
5.4.1. Construction Vehicle Control Strategies
Water unpaved roads twice daily 55%
Limit vehicle speeds on unpaved roads to 25 mph 44%
Sweep paved roads once per month 9%
5.5. Architectural Coatings
Architectural Coating 999,034 333,011
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
Grading — —
Paving 0.00 0.00
5.6.2. Construction Earthmoving Control Strategies
Water Exposed Area
Water Demolished Area
5.7. Construction Paving
Golf Course
3
2
M WO
1,395
0.00
74%
36%
55%
44%
9%
20,000
0%
74%
36%
2.79
77 / 79
SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
Single Family Housing 2.79 0%
General Office Building 0.00 0%
5.8. Construction Electricity Consumption and Emissions Factors
kWh per Year and Emission Factor (lb/MWh)
2035
0.00
457
0.03
< 0.005
2036
0.00
457
0.03
< 0.005
2037
0.00
457
0.03
< 0.005
2038
0.00
457
0.03
< 0.005
2039
0.00
457
0.03
< 0.005
2040
0.00
457
0.03
< 0.005
2041
0.00
457
0.03
< 0.005
2042
0.00
457
0.03
< 0.005
2043
0.00
457
0.03
< 0.005
2044
0.00
457
0.03
< 0.005
2045
0.00
457
0.03
< 0.005
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
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SilverRock Resort Proposed Project Construction Phase 2 (Planning Area 8) Custom Report, 7/18/2025
5.18.2. Sequestration
5.18.2.1. Unmitigated
8. User Changes to Default Data
Screen Justification
Land Use
Construction: Construction Phases
PA 8 includes a second 18-hole golf course is proposed with up to 253 private residences and
40,000 SF of commercial uses
Assumed 10% of land use is landscaped.
Construction estimated to take place from 2035 to 2045.
Building construction, paving, and architectural coating to occur intermittently as homes are
constructed.
M12M]
n-I
Proposed Project Operations
SilverRock Proposed Project Operations Custom Report, 7/31/2025
SilverRock Proposed Project Operations Custom Report
Table of Contents
1. Basic Project Information
1.1. Basic Project Information
1.2. Land Use Types
1.3. User -Selected Emission Reduction Measures by Emissions Sector
2. Emissions Summary
2.4. Operations Emissions Compared Against Thresholds
2.5. Operations Emissions by Sector, Unmitigated
4. Operations Emissions Details
4.1. Mobile Emissions by Land Use
4.1.1. Unmitigated
4.2. Energy
4.2.1. Electricity Emissions By Land Use - Unmitigated
4.2.3. Natural Gas Emissions By Land Use - Unmitigated
4.3. Area Emissions by Source
4.3.1. Unmitigated
1 / 30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
4.4. Water Emissions by Land Use
4.4.1. Unmitigated
4.5. Waste Emissions by Land Use
4.5.1. Unmitigated
4.6. Refrigerant Emissions by Land Use
4.6.1. Unmitigated
4.7. Offroad Emissions By Equipment Type
4.7.1. Unmitigated
4.8. Stationary Emissions By Equipment Type
4.8.1. Unmitigated
4.9. User Defined Emissions By Equipment Type
4.9.1. Unmitigated
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
5. Activity Data
5.9. Operational Mobile Sources
W19111
SilverRock Proposed Project Operations Custom Report, 7/31/2025
5.9.1. Unmitigated
5.10. Operational Area Sources
5.10.1. Hearths
5.10.1.1. Unmitigated
5.10.2. Architectural Coatings
5.10.3. Landscape Equipment
5.11. Operational Energy Consumption
5.11.1. Unmitigated
5.12. Operational Water and Wastewater Consumption
5.12.1. Unmitigated
5.13. Operational Waste Generation
5.13.1. Unmitigated
5.14. Operational Refrigeration and Air Conditioning Equipment
5.14.1. Unmitigated
5.15. Operational Off -Road Equipment
5.15.1. Unmitigated
5.16. Stationary Sources
5.16.1. Emergency Generators and Fire Pumps
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SilverRock Proposed Project Operations Custom Report, 7/31/2025
5.16.2. Process Boilers
5.17. User Defined
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
5.18.2.1. Unmitigated
8. User Changes to Default Data
4/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
1. Basic Project Information
1.1. Basic Project Information
Project Name
Operational Year
Lead Agency
Land Use Scale
Analysis Level for Defaults
Windspeed (m/s)
Precipitation (days)
Location
County
City
Air District
Air Basin
TAZ
EDFZ
Electric Utility
Gas Utility
App Version
1.2. Land Use Types
Golf Course 36.0 Hole 251 0.00
General Office 17.0 1000sgft 0.39 17,000
Building
SilverRock Proposed Project Operations
2045
Project/site
County
3.00
7.60
33.67414841676246,-116.28483188652353
Riverside -Salton Sea
La Quinta
South Coast AQMD
Salton Sea
5651
19
Imperial Irrigation District
Southern California Gas
2022.1.1.29
0.00 0.00 — 1,700 — — —
5/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
General Office
55.0
1000sgft
1.26
55,000
5,500 -
- -
Building
Hotel
154
Room
5.13
223,608
25,000 -
- -
Quality Restaurant
7.50
1000sgft
0.17
7,500
750 -
- -
Condo/Townhouse
70.0
Dwelling Unit
4.38
74,200
7,420 -
226 -
Single Family
29.0
Dwelling Unit
9.42
56,550
5,655 -
94.0 -
Housing
Single Family
93.0
Dwelling Unit
30.2
181,350
18,135 -
300 -
Housing
Single Family
253
Dwelling Unit
82.1
493,350
49,335 -
817 -
Housing
General Office
40.0
1000sgft
0.92
40,000
4,000 -
- -
Building
1.3. User -Selected Emission Reduction Measures by Emissions Sector
No measures selected
2. Emissions Summary
2.4. Operations Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Unmit. 54.9 52.2 32.0 331 0.91 0.98 86.8 87.8 0.95 22.0 23.0 405 110,540 110,946 44.4 3.87 390 113,598
Daily, - - - - - - - - - - - - - - - - - -
Winter
(Max)
Unmit. 47.6 45.2 33.9 194 0.81 0.94 86.8 87.7 0.92 22.0 22.9 405 100,593 100,998 44.4 3.96 368 103,657
Average - - - - - - - - - - - - - - - - - -
Daily
(Max)
6/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Unmit. 48.4 46.0 30.1 220 0.76 0.91 76.8
77.7
0.88
19.5 20.4 405
95,381
95,786
44.2
3.50
376
98,310
Annual- - - - - - -
-
-
- - -
-
-
-
-
-
-
(Max)
Unmit. 8.83 8.40 5.49 40.2 0.14 0.17 14.0
14.2
0.16
3.55 3.72 67.1
15,791
15,858
7.31
0.58
62.2
16,276
2.5. Operations Emissions by Sector, Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, - - - - - - -
-
-
- - -
-
-
-
-
-
-
Summer
(Max)
Mobile 22.4 20.3 25.3 287 0.86 0.44 86.8
87.2
0.42
22.0 22.4 -
88,224
88,224
1.90
3.52
22.5
89,343
Area 31.8 31.5 0.36 40.3 < 0.005 0.04 -
0.04
0.03
- 0.03 -
129
129
0.01
< 0.005
-
129
Energy 0.72 0.36 6.34 3.78 0.04 0.50 -
0.50
0.50
- 0.50 -
21,915
21,915
1.71
0.14
-
21,999
Water - - - - - - -
-
-
- - 84.7
272
357
8.70
0.21
-
637
Waste - - - - - - -
-
-
- - 321
0.00
321
32.1
0.00
-
1,122
Refrig.
- -
367
367
Total 54.9 52.2 32.0 331 0.91 0.98 86.8
87.8
0.95
22.0 23.0 405
110,540
110,946
44.4
3.87
390
113,598
Daily,
Winter
(Max)
Mobile 20.0 18.0 27.5 190 0.77 0.44 86.8
87.2
0.42
22.0 22.4 -
78,406
78,406
1.94
3.61
0.58
79,531
Area 26.8 26.8 - - - - -
-
-
- - -
-
-
-
-
-
-
Energy 0.72 0.36 6.34 3.78 0.04 0.50 -
0.50
0.50
- 0.50 -
21,915
21,915
1.71
0.14
-
21,999
Water - - - - - - -
-
-
- - 84.7
272
357
8.70
0.21
-
637
Waste - - - - - - -
-
-
- - 321
0.00
321
32.1
0.00
-
1,122
Refrig. - - - - - - -
-
-
- - -
-
-
-
-
367
367
Total 47.6 45.2 33.9 194 0.81 0.94 86.8
87.7
0.92
22.0 22.9 405
100,593
100,998
44.4
3.96
368
103,657
Average
Daily
7/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Mobile
18.4
16.5
23.6
197
0.72
0.39
76.8
77.2
0.37
19.5
19.8
-
73,130
73,130
1.70
3.16
8.62
74,122
Area
29.3
29.1
0.18
19.9
< 0.005
0.02
-
0.02
0.01
-
0.01
-
63.5
63.5
< 0.005
< 0.005
-
63.8
Energy
0.72
0.36
6.34
3.78
0.04
0.50
-
0.50
0.50
-
0.50
-
21,915
21,915
1.71
0.14
-
21,999
Water
-
-
-
-
-
-
-
-
-
-
-
84.7
272
357
8.70
0.21
-
637
Waste
-
-
-
-
-
-
-
-
-
-
-
321
0.00
321
32.1
0.00
-
1,122
Refrig.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
367
367
Total
48.4
46.0
30.1
220
0.76
0.91
76.8
77.7
0.88
19.5
20.4
405
95,381
95,786
44.2
3.50
376
98,310
Annual-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Mobile
3.35
3.02
4.30
35.9
0.13
0.07
14.0
14.1
0.07
3.55
3.62
-
12,108
12,108
0.28
0.52
1.43
12,272
Area
5.34
5.31
0.03
3.63
< 0.005
< 0.005
-
< 0.005
< 0.005
-
< 0.005
-
10.5
10.5
< 0.005
< 0.005
-
10.6
Energy
0.13
0.07
1.16
0.69
0.01
0.09
-
0.09
0.09
-
0.09
-
3,628
3,628
0.28
0.02
-
3,642
Water
-
-
-
-
-
-
-
-
-
-
-
14.0
45.0
59.1
1.44
0.03
-
105
Waste
-
-
-
-
-
-
-
-
-
-
-
53.1
0.00
53.1
5.31
0.00
-
186
Refrig.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
60.8
60.8
Total
8.83
8.40
5.49
40.2
0.14
0.17
14.0
14.2
0.16
3.55
3.72
67.1
15,791
15,858
7.31
0.58
62.2
16,276
4. Operations Emissions Details
4.1. Mobile Emissions by Land Use
4.1.1. Unmitigated
Criteria Pollutar
Daily, - - -
Summer
(Max)
Golf 2.90 2.63 3.32
Course
37.8 0.11 0.06 11.5 11.5 0.06 2.91 2.97 - 11,668 11,668 0.25 0.46 2.97 11,815
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SilverRock Proposed Project Operations Custom Report, 7/31/2025
General
7.16
6.49
8.20
93.2
0.28
0.14
28.4
28.5
0.14
7.19
Office
Building
Hotel
3.26
2.95
3.73
42.5
0.13
0.07
12.9
13.0
0.06
3.28
Quality
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Restaura
it
Condo/T
1.32
1.20
1.46
16.4
0.05
0.03
4.94
4.96
0.02
1.25
ownhou
se
Single
7.77
7.07
8.62
96.6
0.29
0.15
29.1
29.3
0.14
7.38
Family
Housing
7.33 -
28,806
28,806
0.62
1.14
7.34
29,170
3.34 -
13,118
13,118
0.28
0.52
3.34
13,284
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
1.28 -
5,022
5,022
0.11
0.20
1.28
5,086
7.52 -
29,610
29,610
0.65
1.19
7.53
29,988
Total 22.4 20.3 25.3 287 0.86 0.44 86.8 87.2 0.42 22.0 22.4 -
Dail - - - - - - - - - - - -
ill
Winter
(Max)
Golf
2.59
2.32
3.61
25.0
0.10
0.06
11.5
11.5
0.06
2.91
Course
General
6.40
5.74
8.91
61.7
0.25
0.14
28.4
28.5
0.14
7.19
Office
Building
Hotel
2.91
2.61
4.06
28.1
0.11
0.07
12.9
13.0
0.06
3.28
Quality
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Restaura
it
Condo/T
1.18
1.06
1.59
10.9
0.04
0.03
4.94
4.96
0.02
1.25
ownhou
se
Single
6.93
6.24
9.37
64.4
0.26
0.15
29.1
29.3
0.14
7.38
Family
Housing
2.97 -
7.33 -
88,224 88,224 1.90 3.52 22.5 89,343
10,368
10,368
0.25
0.48
0.08
10,516
25,598
25,598
0.63
1.17
0.19
25,964
3.34 -
11,657
11,657
0.29
0.54
0.09
11,824
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
1.28 -
4,464
4,464
0.11
0.21
0.03
4,529
7.52 -
26,318
26,318
0.66
1.22
0.20
26,698
Total 20.0 18.0 27.5 190 0.77 0.44 86.8 87.2 0.42 22.0 22.4 - 78,406 78,406 1.94 3.61 0.58 79,531
Annual - - - - - - - - - - - - - - - - - -
Golf 0.44 0.39 0.57 4.77 0.02 0.01 1.87 1.88 0.01 0.47 0.48 - 1,615 1,615 0.04 0.07 0.19 1,637
Course
9/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
General
0.90
0.81
1.17
9.82
0.04
0.02
3.85
3.87
0.02
0.98
1.00 -
3,328
3,328
0.08
0.14
0.39
3,373
Office
Building
Hotel
0.52
0.47
0.68
5.72
0.02
0.01
2.24
2.25
0.01
0.57
0.58 -
1,936
1,936
0.04
0.08
0.23
1,962
Quality
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00
0.00
0.00
0.00
0.00
Restaura
it
Condo/T
0.22
0.20
0.27
2.26
0.01
< 0.005
0.88
0.88
< 0.005
0.22
0.23 -
758
758
0.02
0.03
0.09
769
ownhou
se
Single
1.27
1.15
1.61
13.3
0.05
0.03
5.17
5.19
0.02
1.31
1.34 -
4,470
4,470
0.11
0.19
0.53
4,531
Family
Housing
Total
3.35
3.02
4.30
35.9
0.13
0.07
14.0
14.1
0.07
3.55
3.62 -
12,108
12,108
0.28
0.52
1.43
12,272
4.2. Energy
4.2.1. Electricity Emissions By Land Use - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, - - - - - - - - - - - - - - - - - -
Summer
(Max)
Golf - - - -
Course
-
Office
Building
Hotel - - - -
Quality - - - -
Restaura it
Condo/T - - - -
ownhou
se
- - - - 0.00
0.00
0.00
0.00 -
0.00
- - - - 5,328
5,328
0.39
0.05 -
5,352
- - - - - - - - 3,080
3,080
0.22
0.03 -
3,094
- - - - - - - - 634
634
0.05
0.01 -
637
- - - - - - - - 642
642
0.05
0.01 -
645
10/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Single - - - -
Family
Housing
Total - - - -
Daily, - - - -
Winter
(Max)
Golf - - - -
Course
General - - - -
Office
Building
Hotel - - - -
Quality - - - -
Restaura it
Condo/T - - - -
ownhou
se
Single - - - -
Family
Housing
Total - - - -
Annual - - - -
Golf - - - -
Course
General - - - -
Office
Building
Hotel - - - -
Quality - - - -
Restaura it
Condo/T - - - -
ownhou
se
- - - - - - - - 4,381
4,381
0.32
0.04 -
4,400
- - - - - - 14,065
14,065
1.02
0.12 -
14,127
- - - - - - - - 0.00
0.00
0.00
0.00 -
0.00
- - - - - - - - 5,328
5,328
0.39
0.05 -
5,352
- - - - - - - - 3,080
3,080
0.22
0.03 -
3,094
- - - - - - - - 634
634
0.05
0.01 -
637
- - - - - - - - 642
642
0.05
0.01 -
645
- - - - - - - - 4,381
4,381
0.32
0.04 -
4,400
- - - - - - - - 14,065
14,065
1.02
0.12 -
14,127
- - - - - - - - -
- - - - - - - - 0.00
-
0.00
-
0.00
- -
0.00 -
-
0.00
- - - - - - - - 882
882
0.06
0.01 -
886
- - - - - - - - 510
510
0.04
< 0.005 -
512
- - - - - - - - 105
105
0.01
< 0.005 -
105
- - - - - - - - 106
106
0.01
< 0.005 -
107
11 / 30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Single - - - - - - - -
Family
Housing
Total - - - - - -
4.2.3. Natural Gas Emissions By Land Use - Unmitigated
- - - - 725
725
0.05
0.01 -
728
- - 2,329
2,329
0.17
0.02 -
2,339
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
MWEEMEMEMEMEW
Daily,
-
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Summer
(Max)
Golf
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00 -
0.00 -
0.00
0.00
0.00
0.00 -
0.00
Course
General
0.04
0.02
0.32
0.27
< 0.005
0.02 -
0.02
0.02 -
0.02 -
385
385
0.03
< 0.005 -
386
Office
Building
Hotel
0.23
0.11
2.07
1.74
0.01
0.16 -
0.16
0.16 -
0.16 -
2,469
2,469
0.22
< 0.005 -
2,476
Quality
0.02
0.01
0.21
0.18
< 0.005
0.02 -
0.02
0.02 -
0.02 -
255
255
0.02
< 0.005 -
256
Restaura
it
Condo/T
0.04
0.02
0.37
0.16
< 0.005
0.03 -
0.03
0.03 -
0.03 -
468
468
0.04
< 0.005 -
469
ownhou
se
Single
0.39
0.20
3.37
1.43
0.02
0.27 -
0.27
0.27 -
0.27 -
4,274
4,274
0.38
0.01 -
4,286
Family
Housing
Total
0.72
0.36
6.34
3.78
0.04
0.50 -
0.50
0.50 -
0.50 -
7,850
7,850
0.69
0.01 -
7,872
Daily,
-
-
-
-
-
- -
-
- -
- -
-
-
-
- -
-
Winter
(Max)
Golf
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00 -
0.00 -
0.00
0.00
0.00
0.00 -
0.00
Course
General
0.04
0.02
0.32
0.27
< 0.005
0.02 -
0.02
0.02 -
0.02 -
385
385
0.03
< 0.005 -
386
Office
Building
12/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Hotel
0.23
0.11
2.07
1.74
0.01
0.16 -
0.16
0.16 -
0.16 -
Quality
0.02
0.01
0.21
0.18
< 0.005
0.02 -
0.02
0.02 -
0.02 -
Restaura
it
Condo/T
0.04
0.02
0.37
0.16
< 0.005
0.03 -
0.03
0.03 -
0.03 -
ownhou
se
Single
0.39
0.20
3.37
1.43
0.02
0.27 -
0.27
0.27 -
0.27 -
Family
Housing
Total
0.72
0.36
6.34
3.78
0.04
0.50 -
0.50
0.50 -
0.50 -
Annual
-
-
-
-
-
- -
-
- -
- -
Golf
0.00
0.00
0.00
0.00
0.00
0.00 -
0.00
0.00 -
0.00 -
Course
General
0.01
< 0.005
0.06
0.05
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
Office
Building
Hotel
0.04
0.02
0.38
0.32
< 0.005
0.03 -
0.03
0.03 -
0.03 -
Quality
< 0.005
< 0.005
0.04
0.03
< 0.005
< 0.005 -
< 0.005
< 0.005 -
< 0.005 -
Restaura
it
Condo/T
0.01
< 0.005
0.07
0.03
< 0.005
0.01 -
0.01
0.01 -
0.01 -
ownhou
se
Single
0.07
0.04
0.61
0.26
< 0.005
0.05 -
0.05
0.05 -
0.05 -
Family
Housing
Total
0.13
0.07
1.16
0.69
0.01
0.09 -
0.09
0.09 -
0.09 -
4.3. Area Emissions by Source
4.3.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
21469
2,469
0.22
< 0.005 -
2,476
255
255
0.02
< 0.005 -
256
468
468
0.04
< 0.005 -
469
4,274
4,274
0.38
0.01 -
4,286
7,850
7,850
0.69
0.01 -
7,872
0.00
0.00
0.00
0.00 -
0.00
63.7
63.7
0.01
< 0.005 -
63.9
409
409
0.04
< 0.005 -
410
42.2
42.2
< 0.005
< 0.005 -
42.3
77.4
77.4
0.01
< 0.005 -
77.7
708
708
0.06
< 0.005 -
710
1,300
1,300
0.12
< 0.005 -
1,303
13/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Daily, -
- - - - - - - - - - -
Summer
(Max)
Consum 24.6
24.6 - - -
er
Product
s
Architect 2.25
2.25 - - - - - - - - - -
ural
Coating
s
Landsca 4.97
4.65 0.36 40.3 < 0.005 0.04 - 0.04 0.03 - 0.03 -
pe
Equipm
ent
Total 31.8
31.5 0.36 40.3 < 0.005 0.04 - 0.04 0.03 - 0.03 -
Daily, -
- - - - - - - - - - -
Winter
(Max)
Consum 24.6
24.6
er
Product
s
Architect 2.25
2.25 - - - - - - - - - -
ural
Coating
s
Total 26.8
26.8
Annual
Consum 4.49
4.49
er
Product
s
Architect 0.41
0.41 - - - - - - - - - -
ural
Coating
s
129 129 0.01 < 0.005 - 129
129 129 0.01 < 0.005 - 129
14/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Landsca 0.45 0.42 0.03 3.63 < 0.005 < 0.005 - < 0.005 < 0.005 - < 0.005 - 10.5 10.5 < 0.005 < 0.005 - 10.6
pe
Total 5.34 5.31 0.03 3.63 < 0.005 < 0.005 - < 0.005 < 0.005 - < 0.005 - 10.5 10.5 < 0.005 < 0.005 - 10.6
4.4. Water Emissions by Land Use
4.4.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, - - - - - - - - - - -
Summer
(Max)
Golf - - - - - - - - - - -
Course
General - - - - - - - - - - -
Office
Building
Hotel - - - - - - - - - - -
Quality - - - - - - - - - - -
Restaura it
Condo/T - - - - - - - - - - -
ownhou
se
Single - - - - -
Family
Housing
Total - - - - - - - - - - -
Daily, - - - - - - - - - - -
Winter
(Max)
Golf - - - - - - - - - - -
Course
0.00
0.00
0.00
0.00
0.00 -
0.00
38.1
119
157
3.92
0.09 -
283
7.49
25.0
32.5
0.77
0.02 -
57.3
4.36
13.5
17.9
0.45
0.01 -
32.3
5.46
17.6
23.0
0.56
0.01 -
41.0
29.2
97.1
126
3.00
0.07 -
223
84.7
272
357
8.70
0.21 -
637
0.00 0.00 0.00 0.00 0.00 - 0.00
15/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
General - - - - - - - - - - - 38.1 119 157 3.92 0.09 - 283
Office
Building
Hotel - - - - - - - 7.49 25.0 32.5 0.77 0.02 - 57.3
Quality 4.36 13.5 17.9 0.45 0.01 - 32.3
Restaura it
Condo/T - - - - - - - - - - - 5.46 17.6 23.0 0.56 0.01 - 41.0
ownhou
se
Single - - - - - -
- - - - - 29.2
97.1
126
3.00
0.07 -
223
Family
Housing
Total - - - - - -
- - - - - 84.7
272
357
8.70
0.21 -
637
Annual - - - - - -
- - - - - -
-
-
-
-
Golf - - - - - -
- - - - - 0.00
0.00
0.00
0.00
0.00 -
0.00
Course
General - - - - - -
- - - - - 6.32
19.7
26.0
0.65
0.02 -
46.8
Office
Building
Hotel - - - - - -
- - - - - 1.24
4.15
5.38
0.13
< 0.005 -
9.48
Quality - - - - - -
- - - - - 0.72
2.24
2.97
0.07
< 0.005 -
5.35
Restaura it
Condo/T - - - - - -
- - - - - 0.90
2.91
3.81
0.09
< 0.005 -
6.79
ownhou
se
Single - - - - - -
- - - - - 4.84
16.1
20.9
0.50
0.01 -
36.9
Family
Housing
Total - - - - - -
- - - - - 14.0
45.0
59.1
1.44
0.03 -
105
4.5. Waste Emissions by Land Use
4.5.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
16/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Daily, - - - - - -
- - - - - -
-
-
-
- -
-
Summer
(Max)
Golf
- - - - 2.59
0.00
2.59
0.26
0.00 -
9.04
Course
General - - - - - -
- - - - - 56.1
0.00
56.1
5.61
0.00 -
196
Office
Building
Hotel - - - - - -
- - - - - 45.4
0.00
45.4
4.54
0.00 -
159
Quality - - - - - -
- - - - - 3.69
0.00
3.69
0.37
0.00 -
12.9
Restaura it
Condo/T - - - - - -
- - - - - 27.9
0.00
27.9
2.79
0.00 -
97.6
ownhou
se
Single - - - - - -
- - - - - 185
0.00
185
18.5
0.00 -
647
Family
Housing
Total - - - - - -
- - - - - 321
0.00
321
32.1
0.00 -
1,122
Daily, - - - - - -
- - - - - -
-
-
-
- -
-
Winter
(Max)
Golf - - - - - -
- - - - - 2.59
0.00
2.59
0.26
0.00 -
9.04
Course
General - - - - - -
- - - - - 56.1
0.00
56.1
5.61
0.00 -
196
Office
Building
Hotel - - - - - -
- - - - - 45.4
0.00
45.4
4.54
0.00 -
159
Quality - - - - - -
- - - - - 3.69
0.00
3.69
0.37
0.00 -
12.9
Restaura it
Condo/T - - - - - -
- - - - - 27.9
0.00
27.9
2.79
0.00 -
97.6
ownhou
se
17/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Single - - - - - -
- - - - - 185
0.00
185
18.5
0.00 -
647
Family
Housing
Total
321
0.00
321
32.1
0.00 -
1,122
Annual
Golf - - - - - -
- - - - - 0.43
0.00
0.43
0.04
0.00 -
1.50
Course
General - - - - - -
- - - - - 9.29
0.00
9.29
0.93
0.00 -
32.5
Office
Building
Hotel - - - - - -
- - - - - 7.52
0.00
7.52
0.75
0.00 -
26.3
Quality - - - - - -
- - - - - 0.61
0.00
0.61
0.06
0.00 -
2.14
Restaura it
Condo/T - - - - - -
- - - - - 4.62
0.00
4.62
0.46
0.00 -
16.2
ownhou
se
Single - - - - - - - - - - - 30.6 0.00 30.6 3.06 0.00 - 107
Family
Housing
Total - - - - - - - - - - - 53.1 0.00 53.1 5.31 0.00 - 186
4.6. Refrigerant Emissions by Land Use
4.6.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, - - - -
Summer
(Max)
Golf - - - -
Course
[�ZiZ�=iliI�]
18/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
General — — — —
Office
Building
Hotel — — — —
Quality
Restaura it
Condo/T
ownhou
se
Single — — — —
Family
Housing
Total — — — —
Daily, — — — —
Winter
(Max)
Golf — — — —
Course
General — — — —
Office
Building
Hotel — — — —
Quality — — — —
Restaura it
Condo/T
ownhou
se
Single — — — —
Family
Housing
Total — — — —
Annual — — — —
Golf — — — —
Course
0.27 0.27
— — — — — — — — — — 350
350
11.7
11.7
0.53
0.53
5.24 5.24
367 367
- - - - - - - - - - - - - -
0.00 0.00
0.27 0.27
— — — — — — — — — — — — 350
350
— — — — — — — — — — — — 11.7
11.7
0.53
0.53
5.24 5.24
367 367
- - - - - - - - - - - - - -
0.00 0.00
19/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
General — — — — — — — —
Office
Building
Hotel — — — — — —
Quality
Restaura it
Condo/T
ownhou
se
Single — — — — — — — —
Family
Housing
Total — — — — — — — —
0.05 0.05
— — — — — 57.9
57.9
— 1.94
1.94
0.09
0.09
0.87 0.87
60.8 60.8
4.7. Offroad Emissions By Equipment Type
4.7.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Equipm
ent
Type
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total — — — — — — — — — — — — — — — — — —
Daily, — — — — — — — — — — — — — — — —
Winter
(Max)
Total— — — — — — — — — — — — — — — — — —
Annual— — — — — — — — — — — — — — — — — —
Total— — — — — — — — — — — — — — — — — —
4.8. Stationary Emissions By Equipment Type
20 / 30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
4.8.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Equipm
ent
.-
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total — — — — — — — —
Daily, — — — — — — — —
Winter
(Max)
Total — — — — — — — —
Annual — — — — — — — —
Total — — — — — — — —
4.9. User Defined Emissions By Equipment Type
4.9.1. Unmitigated
Criteria Pollutar
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total— — — — — — — — — — — — — — — — — —
Daily, — — — — — — — — — — — — — — — — — —
Winter
(Max)
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — —
21 / 30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Total — — — — — — — — — — — — — — — — — —
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Total— — — — — — — — — — — — — — — — — —
Daily, — — — — — — — — — — — — — — — — — —
Winter
(Max)
Total — — — — — — — — — — — — — — — — — —
Annual — — — — — —
Total — — — — — —
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — —
Summer
(Max)
Total — —
Daily, — — — —
Winter
(Max)
Total — — — —
Annual — — — —
- - - - - - - - - - - - - -
- - - - - - - - - - - - - -
22/30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Total — — — — — — — — -
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Daily, — — — — — — — — — — — — — — — — — —
Summer
(Max)
Avoided — — — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — — —
Sequest — — — — — — — — — — — — — — — — — —
ered
Subtotal — — — — — — — — — — — — — — — — — —
Remove — — — — — — — — — — — — — — — — — —
d
Subtotal — — — — — — — — — — — —
Daily, — — — — — — — — — — —
Winter
(Max)
Avoided — — — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — — — —
Sequest — — — — — — — — — — — — — — — — — —
ered
Subtotal — — — — — — — — — — — — — — — — — —
Remove — — — — — — — — — — — — — — — — — —
d
Subtotal — — — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — — — — —
23 / 30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Subtotal - - - -
Sequest - - - -
ered
Subtotal - - - -
Remove - - - -
d
Subtotal
5. Activity Data
5.9. Operational Mobile Sources
5.9.1. Unmitigated
Golf Course
1,094
716
General Office
0.00
0.00
Building
General Office
0.00
0.00
Building
Hotel
1,230
1,205
Quality Restaurant
0.00
0.00
Condo/Townhouse
504
509
Single Family
273
276
Housing
Single Family
877
886
Housing
Single Family
1,822
1,841
Housing
General Office
2,701
613
Building
680
0.00
0.00
875
0.00
457
248
794
1,650
28.0
358,038
0.00
0.00
429,157
0.00
181,792
98,584
316,148
657,048
737,605
24/30
16,219
10,619
10,085
5,308,218
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
18,236
17,865
12,979
6,362,611
0.00
0.00
0.00
0.00
6,898
6,971
6,248
2,487,821
3,741
3,781
3,388
1,349,118
11,997
12,124
10,866
4,326,482
24,933
25,197
22,582
8,991,697
40,045
9,086
415
10,935,617
SilverRock Proposed Project Operations Custom Report, 7/31/2025
5.10. Operational Area Sources
5.10.1. Hearths
5.10.1.1. Unmitigated
5.10.2. Architectural Coatings
1631036.25
543,679
5.10.3. Landscape Equipment
Snow Days
Summer Days
5.11. Operational Energy Consumption
5.11.1. Unmitigated
514,662
171,554
day/yr 0.00
day/yr 180
Electricitv (kWh/vr) and CO2 and CH4 and N20 and Natural Gas (kB
Golf Course
0.00
457
0.0330
0.0040
0.00
General Office Building
646,552
457
0.0330
0.0040
182,179
General Office Building
2,091,785
457
0.0330
0.0040
589,403
Hotel
2,462,801
457
0.0330
0.0040
7,703,186
Quality Restaurant
506,864
457
0.0330
0.0040
795,873
Condo/Townhouse
513,040
457
0.0330
0.0040
1,459,547
Single Family Housing
270,838
457
0.0330
0.0040
1,031,365
Single Family Housing
868,550
457
0.0330
0.0040
3,307,481
25 / 30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Single Family Housing 2,362,829 457 0.0330 0.0040
General Office Building 1,521,298 457 0.0330 0.0040
5.12. Operational Water and Wastewater Consumption
5.12.1. Unmitigated
Golf Course
0.00
0.00
General Office Building
3,021,474
31,902
General Office Building
9,775,356
103,211
Hotel
3,906,483
469,140
Quality Restaurant
2,276,503
14,074
Condo/Townhouse
2,847,164
170,183
Single Family Housing
1,179,539
129,702
Single Family Housing
3,782,661
415,940
Single Family Housing
10,290,465
1,131,535
General Office Building
7,109,350
75,062
5.13. Operational Waste Generation
5.13.1. Unmitigated
Golf Course 4.80 —
General Office Building 15.8 —
General Office Building 51.2 —
Hotel 84.3 —
Quality Restaurant 6.84 —
Condo/Townhouse 51.7 —
8,997,771
428,657
26 / 30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
Single Family Housing
26.6
Single Family Housing
85.0
Single Family Housing
232
General Office Building
37.2
5.14. Operational Refrigeration and Air Conditioning Equipment
5.14.1. Unmitigated
Golf Course
Other commercial A/C
R-410A
2,088
and heat pumps
Golf Course
Stand-alone retail
R-134a
1,430
refrigerators and
freezers
General Office
Household
R-134a
1,430
Building
refrigerators and/or
freezers
General Office
Other commercial A/C
R-410A
2,088
Building
and heat pumps
General Office
Household
R-134a
1,430
Building
refrigerators and/or
freezers
General Office
Other commercial A/C
R-410A
2,088
Building
and heat pumps
Hotel
Household
R-134a
1,430
refrigerators and/or
freezers
Hotel
Other commercial A/C
R-410A
2,088
and heat pumps
Hotel
Walk-in refrigerators
R-404A
3,922
and freezers
Quality Restaurant
Household
R-134a
1,430
refrigerators and/or
freezers
< 0.005
4.00
4.00
18.0
0.04
1.00
0.00
1.00
0.02
0.60
0.00
1.00
< 0.005
4.00
4.00
18.0
0.02
0.60
0.00
1.00
< 0.005
4.00
4.00
18.0
0.00
0.60
0.00
1.00
1.80
4.00
4.00
18.0
< 0.005
7.50
7.50
20.0
0.00
0.60
0.00
1.00
27 / 30
Quality Restaurant
Other commercial A/C
R-410A
2,088
and heat pumps
Quality Restaurant
Walk-in refrigerators
R-404A
3,922
and freezers
Condo/Townhouse
Average room A/C &
R-410A
2,088
Other residential A/C
and heat pumps
Condo/Townhouse
Household
R-134a
1,430
refrigerators and/or
freezers
Single Family Housing
Average room A/C &
R-410A
2,088
Other residential A/C
and heat pumps
Single Family Housing
Household
R-134a
1,430
refrigerators and/or
freezers
Single Family Housing
Average room A/C &
R-410A
2,088
Other residential A/C
and heat pumps
Single Family Housing
Household
R-134a
1,430
refrigerators and/or
freezers
Single Family Housing
Average room A/C &
R-410A
2,088
Other residential A/C
and heat pumps
Single Family Housing
Household
R-134a
1,430
refrigerators and/or
freezers
General Office
Household
R-134a
1,430
Building
refrigerators and/or
freezers
General Office
Other commercial A/C
R-410A
2,088
Building
and heat pumps
5.15. Operational
Off -Road Equipment
SilverRock Proposed Project Operations Custom Report, 7/31/2025
1.80
4.00
4.00
18.0
< 0.005
7.50
7.50
20.0
< 0.005
2.50
2.50
10.0
0.12
0.60
0.00
1.00
< 0.005
2.50
2.50
10.0
0.12
0.60
0.00
1.00
< 0.005
2.50
2.50
10.0
0.12
0.60
0.00
1.00
< 0.005
2.50
2.50
10.0
0.12
0.60
0.00
1.00
0.02
0.60
0.00
1.00
< 0.005
4.00
4.00
18.0
28 / 30
SilverRock Proposed Project Operations Custom Report, 7/31/2025
5.15.1. Unmitigated
5.16. Stationary Sources
5.16.1. Emergency Generators and Fire Pumps
5.16.2. Process Boilers
5.17. User Defined
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
Number per Day Hours per Day Hours per Year Horsepower Load Factor
PRIFICIII
SilverRock Proposed Project Operations Custom Report, 7/31/2025
5.18.2.1. Unmitigated
8. User Changes to Default Data
Land Use
Operations: Vehicle Data
Assumed 1-% of building area is landscaped.
Trip rates calculated based on daily trips provided by Fehr & Peers using ITE 11th Edition.
Some office and restaurant uses included in hotel trips.
Operations: Hearths No wood burning fireplaces or stoves included in the proposed Project.
MIMIC