1ST REVIEW CORRECTIONS - PRELIMINARY WQMP TTM2019-0005Whitewater River Region WQMP
Project Specific
Preliminary Water Quality Management Plan
For: The Wave at Coral Mountain — Tentative Tract Map No. 37815
South of Avenue 58; West of Madison Street, in the City of La Quinta
DEVELOPMENT NO. TBD TTM2019-0005
(TTM 37815)
Prepared for: Provide updated
CM Wave Development, L.L.C.
2440 Junction Place, Suite 200 title report
Boulder, CO 80301
Telephone: (480) 367-7576
Prepared By:
Jesus Herrera-Cortes, CPSWQ, QSD/QSP
Prepared Under the Direction of:
Michael Rowe, PE,
MSA Consulting, Inc.
34200 Bob Hope Drive
Rancho Mirage, CA 92270
Telephone: (760) 320-9811
Fax No. (760) 323-7893
Original Date Prepared:
November 18, 2019
Revision Date(s): N/A
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Whitewater River Region WQMP
The Wave at Coral Mountain
OWNER'S CERTIFICATION
This project -specific Preliminary Water Quality Management Plan (M-WQMP) has been prepared for:
CM Wave Development, L.L.C. by MSA Consulting, Inc. for the project known as The Wave at
Coral Mountain in the City of La Quinta.
This WQMP is intended to comply with the requirements of the City of La Quinta for The Wave at
Coral Mountain, Xntich includes the requirement for the preparation and implementation of a
project -specific WQ TTM2019-0005 (TTM37815)
The undersigned, while owning the property/project described in the preceding paragraph, shall be
responsible for the implementation of this WQMP and will ensure that this WQMP is amended as
appropriate to reflect up-to-date conditions on the site. This WQMP will be reviewed with the
facility operator, facility supervisors, employees, tenants, maintenance and service contractors, or
any other party (or parties) having responsibility for implementing portions of this WQMP. At least
one copy of this WQMP will be maintained at the project site or project office in perpetuity.
The undersigned is authorized to certify and to approve implementation of this WQMP. The undersigned
is aware that implementation of this WQMP is enforceable under City of La Quinta Water Quality
Ordinance 493 (La Quinta Municipal Code Municipal Code Section 8.70).
If the undersigned transfers its interest in the subject property/project, the undersigned shall notify
the successor in interest of its responsibility to implement this WQMP.
"I, the undersigned, certify under penalty of law that I am the owner of the property that is the subject
of this WQMP, and that the provisions of this WQMP have been reviewed and accepted and that the
WQMP will be transferred to future successors in interest."
ATTEST
Owner's Signature
Owner's Printed Name
Notary Signature
Owner's Title/Position
Printed Name
Date
Title/Position
2440 Junction Place, Suite 200
Boulder, CO 80301 Date
THIS FORM SHALL BE NOTARIZED BEFORE ACCEPTANCE OF THE
FINAL PROJECT SPECIFIC WQMP
Whitewater River Region WQMP
The Wave at Coral Mountain
I. Project Description
Project Owner: CM Wave Development, L.L.C.
2440 Junction Place, Suite 200
Boulder, CO 80301
WQMP Preparer: Under the Direct Supervision of Michael Rowe, PE
MSA Consulting, Inc.
34200 Bob Hope Drive
Rancho Mirage, CA 92270
Telephone: (760) 323-7893
Fax No.: (760) 323-7893
Project Site Address: South of Avenue 58; West of Madison Street
in the City of La Quinta
Planning Area: City of La Quinta Specific Plan 03-067
Community Name: City of La Quinta
Development Name: The Wave at Coral Mountain — TTM No. 37815
APN Number(s): 764-200-076, 764-210-007, 764-210-028, 764-210-029, 766-070-
003, 766-070-006, 766-070-012, 766-070-014, 766-080-001, 766-
080-0021 766-080-004 & 766-080-005
Latitude & Longitude: 33°37'6.7399" North, 116015'24.7324" West
Receiving Water: Coachella Valley Stormwater Channel
Preliminary WQMP Coverage Area: 305.827 Acres (Drainage Areas A — E)
Standard Industrial Classification (SIC) Code(s): Summary data form
• SIC not applicable to residential development shows 385.01 ac.
• 7999: Amusement and Recreation Please clarify
• 7011: Hotels (Resort Hotels)
• 5399: Miscellaneous General Merchandise Stores
Formation of Home Owners' Association (HOA)
or Property Owners Association (POA): Y ® N ❑
November 18, 2019 1
Whitewater River Region WQMP
The Wave at Coral Mountain
Additional Permits/Approvals required for the Project:
AGENCY
Permit required
State Department of Fish and Wildlife, Fish and Game
Code § 1602 Streambed Alteration Agreement
Y
N®
State Water Resources Control Board, Clean Water Act
(CWA) Section 401 Water Quality Certification
Y
N®
US Army Corps of Engineers, CWA Section 404 permit
Y
N®
US Fish and Wildlife, Endangered Species Act Section 7
biological opinion
Y
N®
Statewide Construction General Permit Coverage
Y ®
N❑
Statewide Industrial General Permit Coverage
Y
N®
Other: Add City of La Quinta Building Permits
City of La Quinta Grading Permit
Y ® N❑
• The proposed project activity will not divert or obstruct the natural flow or change
the bed, channel, or bank of any stream, river or lake. Therefore, a State Department
of Fish and Game, 1601 Streambed Alteration Agreement is not required.
• The proposed project activity will not result in discharge into navigable waters or
other impacts; therefore, a Clean Water Act Section 401 Water Quality Certification
permit is not required.
• The proposed facility will not result in the discharge of dredged or fill materials into
the Waters of the United States. A Clean Water Act Section 404 Permit is not
required for this project.
• The proposed project site is not recognized as a habitat of an endangered species nor
does it form part of a Conservation Area under the Coachella Valley Multiple
Species Habitat Conservation Plan. A U.S. Fish and Wildlife, Endangered Species
Act Section 7 biological opinion is not required for this project.
• The proposed project is not industrial in nature. Therefore, coverage under the
General Permit for Storm Water Discharges Associated with Industrial Activities is
not required. This project will obtain coverage under the State Water Board NPDES
General Permit for Storm Water Discharges Associated with Construction and Land
Disturbance Activities.
November 18, 2019 2
Whitewater River Region WQMP
The Wave at Coral Mountain
Receiving Waters for Urban Runoff from Site I Include Total Ammonia
signated
Proximity to
Receiving
EPA Approved 303(d) List
eses al
RARE Beneficial
Waters
Impairments
Uses
U
Use Designated
Receivin Waters
Coachella
DDT(Dichlorodiphenyltrichloroethane)
FRSH, REC I c,
Valley
Dieldrin, Indicator Bacteria, PCBs
REC II c,
Approximately 7.1
Stormwater
(Polychlorinated Biphenyls), Toxa ne,
WARM, WILD,
miles
Channel
Toxicity
RARE d
The preceding table is based on the 2014 and 2016 Integrated Report (Clean Water Act Section 303(d)
List/305(b) Report. All impairments listed for Coachella Valley Stormwater Channel are under Category 5, which
apply to water segments where standards are not met and a Total Maximum Daily Load (TMDL) is required, but not
yet completed. All pollutant sources for this segment are unknown.
Abbreviations:
I — Intermittent Beneficial Use
FRSH — Freshwater Replenishment
REC I — Water Contact Recreation
REC II — Non -Contact Water Recreation
WARM — Warm Freshwater Habitat
WILD — Wildlife Habitat
RARE — Preservation of Rare, Threatened, or Endangered Species
MUN — Municipal & Domestic Supply
AGR — Agricultural Supply
GWR — Groundwater Recharge
AQUA — Acuaculture
COLD — Cold Freshwater Habitat
POW — Hydropower Generation
a. Although it is not encouraged, children play in the water infrequently on the wildlife reserve
b. Section of perennial flow from approximately Indio to the Salton Sea.
c. Unauthorized use.
d. Rare, endangered, or threatened wildlife exists in or utilizes some of this waterway.
November 18, 2019 7
III. Pollutants of Concern
Show total
ammonia
and toxicity
under others
in the table
Whitewater River Region WQMP
The Wave at Coral Mountain
Table 1. Pollutant of Concern Summary
Pollutant Category
Potential for
Project
Causing Receiving
Water Impairment
BacteriaNirus (Pathogens)
Yes
Yes (Pathogens)
Heavy Metals
Yes
No
Nutrients
Yes
No
Toxic Organic Compounds
Yes
Ye
IVO
Sediment/Turbidity
Yes
No
Trash & Debris
Yes
No
Oil & Grease
Yes
No
The Coachella Valley Stormwater Channel is impaired by DDT (Dichlorodiphenyltrichloroethane),
Dieldrin, Indicator Bacteria, PCBs (Polychlorinated Biphenyls), Toxaphene, and Toxicity.
• The project is not anticipated to generate DDT contamination because the use of this substance
(synthetic organic compound) has been banned since 1972; therefore, it will not be handled or form
part of the proposed development.
• The project is not anticipated to generate Dieldrin contamination because the use of this substance
(synthetic organic compound) was related to agricultural operations (found in pesticides for crops)
and it has been illegal since 1987; therefore, it will not be handled or form part of the proposed
development.
• The project is not anticipated to produce polychlorinated biphenyls (PCBs) because manufacturing
this substance (synthetic organic compound) stopped in 1977 and its application was banned in 1979;
therefore, it will not be handled or form part of the proposed development.
• The proposed development is not anticipated to produce toxaphene because the use of this substance
(synthetic organic compound) has been illegal since 1990; therefore, it will not be handled or form
part of the proposed development.
• The project has the potential to generate small amounts of pathogens (bacteria/virus). These
pollutants are generally associated with various human activities, but pathogens are also present in
natural environments. Moreover, pathogens can be associated with wild and domesticated animal
waste. Source control measures to address this potential pollutant are discussed in the subsequent
sections of this report. Runoff from the project will be conveyed to proposed retention facilities sized
to capture and infiltrate the controlling 100-year storm event and the design capture volume for water
quality purposes (Vbmp). Therefore, no discharge of pathogens in runoff is expected as part of the
standard operating condition.
The project is not expected to generate or discharge toxicants, such as toxic metals and synthetic
organic compounds that would result in detrimental physiological responses in human, plant, animal,
or indigenous aquatic life in the Coachella Valley Storm Water Channel. Due to the project's location
and proposed improvements, the project will not involve direct or indirect discharges into the
Coachella Valley Storm Water Channel. All project runoff will be conveyed to on -site retention
facilities.
November 18, 2019
Project -Specific WQMP Summary Data Form
Applicant Information
Name and Title
Garrett Simon
Company
CM Wave Development, L.L.C.
Phone
(970)596-6642
Email
gsimon@meriwetherco.com
Project Information
Project Name
(as shown on project application/project-specific WQMP)
The Wave at Coral Mountain
Street Address
South of Avenue 58; West of Madison Street
Nearest Cross Streets
Madison Street
Municipality
(City or Unincorporated County)
City of La Quinta
Zip Code
92253
Tract Number(s) and/or Assessor Parcel Number(s)
Tentative Parcel Map No. 37815 Tentative Tract Ma
Other
(other information to help identify location of project)
Indicate type of project.
Priority Development Projects (Use an "X" in cell preceding project type):
SF hillside residence; impervious area > 10,000 sq. ft.; Slope > 25%
SF hillside residence; impervious area > 10,000 sq. ft.; Slope > 10% & erosive soils
X
Commercial or Industrial > 100,000 sq. ft. (Commercial Only)
Automotive repair shop
X
Retail Gasoline Outlet disturbing > 5,000 sq. ft.
X
Restaurant disturbing > 5,000 sq. ft.
X
Home subdivision > 10 housing units
X
Parking lot > 5,000 sq. ft. or > 25 parking spaces
Date Project -Specific WQMP Submitted
November 18, 2019
Size of Project Area (nearest 0.1 acre)
385.01 Acres
Will the project replace more than 50% of the impervious
surfaces on an existing developed site?
No
Project Area managed with LID/Site Design BMPs (nearest 0.1
acre)
385.01 Acres
Are Treatment Control BMPs required?
No
Is the project subject to onsite retention by ordinance or policy?
Yes
Did the project meet the 100% LID/Site Design Measurable
Goal?
Yes
Name of the entity that will implement, operate, and maintain
the post -construction BMPs
CM Wave Development, L.L.C.
Contact Name
To Be Determined Provide contact name
Street or Mailing Address
2440 Junction Place, Suite 200
City
Boulder, CO
Zip Code
80301
Phone
(970)596-6642
Space Below for Use by City/County Staff Only
Preceding Information Verified by
(consistent with information in project -specific WQMP)
Name:
Date:
Date Project -Specific WQMP Approved:
Data Entered by
Name:
Date:
Other Comments