PC Action Letter TTM 37730 Approval 2019-12-12
December 12, 2019
Mr. John Gamlin
SilverRock Development Company
3551 Fortuna Rancho Road
Encinitas, CA 92024
SUBJECT: APPROVAL AND FINAL CONDITIONS FOR TENTATIVE TRACT MAP 2019-0002
(TTM 37730)
Dear John,
On December 10, 2019, at its regularly scheduled meeting, the Planning Commission approved the
above-referenced application, subject to its findings and conditions of approval. The conditions of
approval are attached for your reference.
If you have any questions, please contact me at ncriste@terranovaplanning.com and/or at (760) 777-
7132.
Sincerely,
Nicole Sauviat Criste
Consulting Planner
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 1 of 16
GENERAL
1. The applicant agrees to defend, indemnify and hold harmless the City of La Quinta
(“City”), its agents, officers and employees from any claim, action or proceeding to
attack, set aside, void, or annul the approval of this Tentative Tract Map, or any Final
Map recorded thereunder. The City shall have sole discretion in selecting its defense
counsel.
The City shall promptly notify the applicant of any claim, action or proceeding and
shall cooperate fully in the defense.
2. This Tentative Tract Map, and any Final Map recorded thereunder, shall comply with
the requirements and standards of Government Code §§ 66410 through 66499.58
(the “Subdivision Map Act”), and Chapter 13 of the La Quinta Municipal Code
(“LQMC”).
The City of La Quinta’s Municipal Code can be accessed on the City’s Web Site at
www.la-quinta.org.
3. Tentative Tract Map No. 37730 shall comply with all applicable conditions and/or
mitigation measures for the following related approval(s):
SDP 2016-0005 and SDP 2016-0009
Tentative Parcel Map 37207
Environmental Assessment 2014-1003
In the event of any conflict(s) between approval conditions and/or provisions of these
approvals, the Design and Development Director shall adjudicate the conflict by
determining the precedence.
4. Prior to the issuance of any grading, construction, or building permit by the City, the
applicant shall obtain any necessary clearances and/or permits from the following
agencies, if required:
• Riverside County Fire Marshal
• La Quinta Public Works Department (Grading Permit, Green Sheet
(Development Services Clearance) for Building Permits, Water Quality
Management Plan (WQMP) Exemption Form – Whitewater River Region,
Improvement Permit)
• La Quinta Design and Development Department
• Riverside Co. Environmental Health Department
• Desert Sands Unified School District (DSUSD)
• Coachella Valley Water District (CVWD)
• Imperial Irrigation District (IID)
• California Regional Water Quality Control Board (CRWQCB)
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 2 of 16
• State Water Resources Control Board
• SunLine Transit Agency (SunLine)
• South Coast Air Quality Management District Coachella Valley (SCAQMD)
The applicant is responsible for all requirements of the permits and/or clearances
from the above listed agencies. When these requirements include approval of
improvement plans, the applicant shall furnish proof of such approvals when
submitting those improvement plans for City approval.
5. Coverage under the State of California Construction General Permit must be obtained
by the applicant, who then shall submit a copy of the Regional Water Quality Control
Board’s (“RWQCB”) acknowledgment of the applicant’s Notice of Intent (“NOI”) and
Waste Discharge Identification (WDID) number to the City prior to the issuance of a
grading or building permit.
6. The applicant shall comply with applicable provisions of the City’s NPDES stormwater
discharge permit, LQMC Sections 8.70.010 et seq. (Stormwater Management and
Discharge Controls), and 13.24.170 (Clean Air/Clean Water); Riverside County
Ordinance No. 457; the California Regional Water Quality Control Board – Colorado
River Basin Region Board Order No. R7-2013-0011 and the State Water Resources
Control Board’s Order No. 2009-0009-DWQ and Order No. 2012-0006-DWQ.
A. For construction activities including clearing, grading or excavation of land that
disturbs one (1) acre or more of land, or that disturbs less than one (1) acre of
land, but which is a part of a construction project that encompasses more than
one (1) acre of land, the Permitee shall be required to submit a Storm Water
Pollution Protection Plan (“SWPPP”) to the State Water Resources Control
Board.
The applicant or design professional can obtain the California Stormwater
Quality Association SWPPP template at www.cabmphandbooks.com for use in
their SWPPP preparation.
B. The applicant shall ensure that the required SWPPP is available for inspection
at the project site at all times through and including acceptance of all
improvements by the City.
C. The applicant’s SWPPP shall include provisions for all of the following Best
Management Practices (“BMPs”) (LQMC Section 8.70.020 (Definitions)):
1) Temporary Soil Stabilization (erosion control).
2) Temporary Sediment Control.
3) Wind Erosion Control.
4) Tracking Control.
5) Non-Storm Water Management.
6) Waste Management and Materials Pollution Control.
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 3 of 16
D. All erosion and sediment control BMPs proposed by the applicant shall be
approved by the City Engineer prior to any onsite or offsite grading, pursuant
to this project.
E. The SWPPP and BMPs shall remain in effect for the entire duration of project
construction until all improvements are completed and accepted by the City
Council.
F. The inclusion in the Homeowners’ Association (HOA) Conditions, Covenants,
and Restrictions (CC&Rs), a requirement for the perpetual maintenance and
operation of all post-construction BMPs as required and the applicant shall
execute and record an agreement that provides for the perpetual maintenance
and operation of all post-construction BMPs as required.
7. Developer shall reimburse the City, within thirty (30) days of presentment of the
invoice, all costs and actual attorney’s fees incurred by the City Attorney to review,
negotiate and/or modify any documents or instruments required by these conditions,
if Developer requests that the City modify or revise any documents or instruments
prepared initially by the City to effect these conditions. This obligation shall be paid
in the time noted above without deduction or offset and Developer’s failure to make
such payment shall be a material breach of the Conditions of Approval.
8. Developer shall reimburse the City, within thirty (30) days of presentment of the
invoice, all costs and actual consultant’s fees incurred by the City for engineering
and/or surveying consultants to review and/or modify any documents or instruments
required by this project. This obligation shall be paid in the time noted above without
deduction or offset and Developer’s failure to make such payment shall be a material
breach of the Conditions of Approval.
PROPERTY RIGHTS
9. Prior to issuance of any permit(s), the applicant shall acquire or confer easements
and other property rights necessary for the construction or proper functioning of the
proposed development. Conferred rights shall include irrevocable offers to dedicate
or grant access easements to the City for emergency services and for maintenance,
construction and reconstruction of essential improvements.
10. Pursuant to the aforementioned condition, conferred rights shall include approvals
from the master developer over easements and other property rights necessary for
construction and proper functioning of the proposed development not limited to
access rights over proposed and/or existing private streets that access public streets
and open space/drainage facilities of the master development.
11. The applicant shall adjust lot lines as shown on the preliminary grading plan prior to
any certificate of occupancy issuance for Tract Map. 37730.
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 4 of 16
12. The applicant shall retain for private use on the Final Map all private street right-of-
ways in conformance with the City's General Plan, Municipal Code, applicable specific
plans, and/or as required by the City Engineer.
13. The private street right-of-ways to be retained for private use required for this
development include:
A. PRIVATE STREETS
Lot A - Private residential streets shall have a 36-foot travel width. The travel
width may be reduced to 32 feet with parking restricted to one side, and 28
feet if on-street parking is prohibited. The applicant shall establish provisions
for ongoing enforcement of the parking restriction in the CC&R’s. The CC&R’s
shall be reviewed and approved by the Design and Development Department
prior to recordation.
Property line shall be placed at the back of curb similar to the lay out shown on
the typical street section shown in the tentative map. Use of smooth curves
instead of angular lines at property lines is recommended.
B. CUL DE SACS
The cul de sac shall conform to the shape shown on the tentative map with a
38-foot curb radius at the bulb or larger as shown on the tentative map.
14. When the City Engineer determines that access rights to the proposed street right-of-
way shown on the approved Tentative Tract Map are necessary prior to approval of
the Final Map dedicating such rights-of-way, the applicant shall grant the necessary
rights-of-way within 60 days of a written request by the City.
15. The applicant shall offer for dedication on the Final Map a ten-foot wide public utility
easement contiguous with, and along both sides of all private streets. Such
easement may be reduced to five feet in width with the express written approval of
IID.
16. The applicant shall offer for dedication those easements necessary for the placement
of, and access to, utility lines and structures, drainage basins, mailbox clusters, park
lands, and common areas on the Final Map.
17. Direct vehicular access to SilverRock Way and Ahmanson Lane is restricted, except
for those access points identified on the Tentative Tract Map, or as otherwise
conditioned in these conditions of approval. The vehicular access restriction shall be
shown on the recorded final tract map.
18. The applicant shall furnish proof of easements, or written permission, as appropriate,
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 5 of 16
from those owners of all abutting properties on which grading, retaining wall
construction, permanent slopes, or other encroachments will occur.
19. The applicant shall cause no easement to be granted, or recorded, over any portion of
the subject property between the date of approval of the Tentative Tract Map and the
date of recording of any Final Map, unless such easement is approved by the City
Engineer.
STREET AND TRAFFIC IMPROVEMENTS
20. The applicant shall comply with the provisions of LQMC Sections 13.24.060 (Street
Improvements), 13.24.070 (Street Design - Generally) & 13.24.100 (Access for
Individual Properties and Development) for public streets; and Section 13.24.080
(Street Design - Private Streets), where private streets are proposed.
21. Streets shall have vertical curbs or other approved curb configurations that will
convey water without ponding, and provide lateral containment of dust and residue
during street sweeping operations. If a wedge or rolled curb design is approved, the
lip at the flowline shall be near vertical with a 1/8" batter and a minimum height of
0.1'. Unused curb cuts on any lot shall be restored to standard curb height prior to
final inspection of permanent building(s) on the lot.
22. The applicant shall construct the following street improvements:
A. PRIVATE STREETS
1) Lot A - Private residential streets shall have a 36-foot travel width. The
travel width may be reduced to 32 feet with parking restricted to one
side, and 28 feet if on-street parking is prohibited, and provided there is
adequate off-street parking for residents and visitors, and the applicant
establishes provisions for ongoing enforcement of the parking restriction
in the CC&R’s. The CC&R’s shall be reviewed and approved by the
Design and Development Department prior to recordation.
2) The location of driveways of corner lots shall not be located within the
curb return and away from the intersection when possible.
B. PRIVATE CUL DE SACS
1) Shall be constructed according to the lay-out shown on the tentative
map, except for revisions as may be required by the City Engineer.
C. EMERGENCY TURN AROUND
1) Turn arounds shall be required for driveway Lots B and C or another
circulating feature as approved by the Fire Department and the City
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 6 of 16
Engineer.
23. The applicant shall extend improvements beyond the subdivision boundaries to
ensure they safely integrate with existing improvements (e.g., grading; traffic control
devices and transitions in alignment, elevation or dimensions of streets and
sidewalks).
24. Improvements shall be designed and constructed in accordance with City adopted
standards, supplemental drawings and specifications, or as approved by the City
Engineer. Improvement plans for streets, access gates and parking areas shall be
stamped and signed by engineers registered in California.
25. The applicant shall design street pavement sections using CalTrans' design procedure
for 20-year life pavement, and the site-specific data for soil strength and anticipated
traffic loading (including construction traffic). Minimum structural sections shall be as
follows:
Residential 3.0" a.c./4.5" c.a.b.
or the approved equivalents of alternate materials.
26. The applicant shall submit current mix designs (less than two years old at the time of
construction) for base, asphalt concrete and Portland cement concrete. The submittal
shall include test results for all specimens used in the mix design procedure. For mix
designs over six months old, the submittal shall include recent (less than six months
old at the time of construction) aggregate gradation test results confirming that
design gradations can be achieved in current production. The applicant shall not
schedule construction operations until mix designs are approved.
FINAL MAPS
27. Prior to the City’s approval of a Final Map, the applicant shall furnish accurate mylars
of the Final Map. The Final Map shall be 1” = 40’ scale.
IMPROVEMENT PLANS
As used throughout these Conditions of Approval, professional titles such as “engineer,”
“surveyor,” and “architect,” refer to persons currently certified or licensed to practice their
respective professions in the State of California.
28. Improvement plans shall be prepared by or under the direct supervision of qualified
engineers and/or architects, as appropriate, and shall comply with the provisions of
LQMC Section 13.24.040 (Improvement Plans).
29. The following improvement plans shall be prepared and submitted for review and
approval by the Design and Development Department. A separate set of plans for
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 7 of 16
each line item specified below shall be prepared. The plans shall utilize the minimum
scale specified, unless otherwise authorized by the City Engineer in writing. Plans
may be prepared at a larger scale if additional detail or plan clarity is desired. Note,
the applicant may be required to prepare other improvement plans not listed here
pursuant to improvements required by other agencies and utility purveyors.
A. On-Site Street Improvements/ Signing & Striping/ Storm Drain Plan
1" = 40' Horizontal, 1"= 4' Vertical
B. On-Site Rough Grading Plan 1” = 40’ Horizontal
C. PM10 Plan 1” = 40’ Horizontal
D. Erosion Control Plan 1” = 40’ Horizontal
NOTE: A through D to be submitted concurrently.
(Separate Storm Drain Plans if applicable)
E. On-Site Residential Precise Grading Plan 1" = 30' Horizontal
Other engineered improvement plans prepared for City approval that are not listed
above shall be prepared in formats approved by the City Engineer prior to
commencing plan preparation.
All On-Site Signing & Striping Plans shall show, at a minimum; Stop Signs, Limit
Lines and Legends, No Parking Signs, Raised Pavement Markers (including Blue RPMs
at fire hydrants) and Street Name Signs per Public Works Standard Plans and/or as
approved by the City Engineer.
“Rough Grading” plans shall normally include perimeter walls with Top Of Wall & Top
Of Footing elevations shown. All footings shall have a minimum of 1-foot of cover, or
sufficient cover to clear any adjacent obstructions.
In addition to the normal set of improvement plans, a “precise grading” plan is
required to be submitted for approval by the Building Official, Planning Manager, and
the City Engineer.
“Precise Grading” plans shall normally include all on-site surface improvements
including but not limited to finish grades for curbs & gutters, building floor elevations,
wall elevations, parking lot improvements and accessible requirements.
30. The City maintains standard plans, detail sheets and/or construction notes for
elements of construction which can be accessed via the “Plans, Notes and Design
Guidance” section of the Design and Development Department at the City website
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 8 of 16
(www.laquintaca.gov). Please navigate to the Design and Development Department
home page and look for the Standard Drawings hyperlink.
31. The applicant shall furnish a complete set of the mylars of all approved improvement
plans on a storage media acceptable to the City Engineer.
32. Upon completion of construction, and prior to final acceptance of the improvements
by the City, the applicant shall furnish the City with reproducible record drawings of
all improvement plans which were approved by the City. Each sheet shall be clearly
marked "Record Drawing" and shall be stamped and signed by the engineer or
surveyor certifying to the accuracy and completeness of the drawings. The applicant
shall have all approved mylars previously submitted to the City, revised to reflect the
as-built conditions. The applicant shall employ or retain the Engineer of Record during
the construction phase of the project so that the EOR can make site visits in support
of preparing "Record Drawing". However, if subsequent approved revisions have been
approved by the City Engineer and reflect said "Record Drawing" conditions, the
Engineer of Record may submit a letter attesting to said fact to the City Engineer in
lieu of mylar submittal.
IMPROVEMENT SECURITY AGREEMENTS
33. Prior to approval of any Final Map, the applicant shall construct all on and off-site
improvements and satisfy its obligations for same, or shall furnish a fully secured and
executed Subdivision Improvement Agreement (“SIA”) guaranteeing the construction
of such improvements and the satisfaction of its obligations for same, or shall agree
to any combination thereof, as may be required by the City.
34. Any Subdivision Improvement Agreement (“SIA”) entered into by and between the
applicant and the City of La Quinta, for the purpose of guaranteeing the completion of
any improvements related to this Tentative Tract Map, shall comply with the
provisions of Chapter 13.28 (Improvement Security), LQMC.
35. Improvements to be made, or agreed to be made, shall include the removal of any
existing structures or other obstructions which are not a part of the proposed
improvements; and shall provide for the setting of the final survey monumentation.
36. Depending on the timing of the development of this Tentative Tract Map, and the
status of the off-site improvements at the time, the applicant may be required to:
A. Construct certain off-site improvements.
B. Construct additional off-site improvements, subject to the reimbursement of its
costs by others.
C. Reimburse others for those improvements previously constructed that are
considered to be an obligation of this tentative tract map.
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
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D. Secure the costs for future improvements that are to be made by others.
E. To agree to any combination of these actions, as the City may require.
Off-Site Improvements should be completed on a first priority basis. The applicant
shall complete Off-Site Improvements in the first phase of construction or by the
issuance of 20% of total Building Permits.
In the event that any of the improvements required for this development are
constructed by the City, the applicant shall, prior to the approval of the Final Map, or
the issuance of any permit related thereto, reimburse the City for the costs of such
improvements.
37. If the applicant elects to utilize the secured agreement alternative, the applicant shall
submit detailed construction cost estimates for all proposed on-site and off-site
improvements, including an estimate for the final survey monumentation, for
checking and approval by the City Engineer. Such estimates shall conform to the unit
cost schedule as approved by the City Engineer.
Estimates for improvements under the jurisdiction of other agencies shall be
approved by those agencies and submitted to the City along with the applicant’s
detailed cost estimates.
Security will not be required for telephone, natural gas, or Cable T.V. improvements.
38. Should the applicant fail to construct the improvements for the development, or fail
to satisfy its obligations for the development in a timely manner, the City shall have
the right to halt issuance of building permits, and/or final building inspections,
withhold other approvals related to the development of the project, or call upon the
surety to complete the improvements.
GRADING
39. The applicant shall comply with the provisions of LQMC Section 13.24.050 (Grading
Improvements).
40. Prior to occupancy of the project site for any construction, or other purposes, the
applicant shall obtain a grading permit approved by the City Engineer.
41. To obtain an approved grading permit, the applicant shall submit and obtain approval
of all of the following:
A. A grading plan prepared by a civil engineer registered in the State of
California, and
B. A preliminary geotechnical (“soils”) report prepared by a professional
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 10 of 16
registered in the State of California, and
C. A Fugitive Dust Control Plan prepared in accordance with LQMC Chapter 6.16,
(Fugitive Dust Control), and
D. A Best Management Practices report prepared in accordance with LQMC
Sections 8.70.010 and 13.24.170 (NPDES Stormwater Discharge Permit and
Storm Management and Discharge Controls), and
E. A WQMP prepared by an authorized professional registered in the State of
California, and
F. A grading bond in a form acceptable to the City, and in an amount sufficient to
guarantee compliance with the grading bond requirements.
All grading shall conform with the recommendations contained in the Preliminary Soils
Report, and shall be certified as being adequate by soils engineer, or engineering
geologist registered in the State of California.
A statement shall appear on the Final Map that a soils report has been prepared in
accordance with the California Health & Safety Code § 17953.
The applicant shall furnish security, in a form acceptable to the City, and in an
amount sufficient to guarantee compliance with the approved Fugitive Dust Control
Plan provisions as submitted with its application for a grading permit. Additionally,
the applicant shall replenish said security if expended by the City of La Quinta to
comply with the Plan as required by the City Engineer.
42. The applicant shall maintain all open graded, undeveloped land in order to prevent
wind and/or water erosion of such land. All open graded, undeveloped land shall
either be planted with interim landscaping, or stabilized with such other erosion
control measures, as were approved in the Fugitive Dust Control Plan.
43. Building pad elevations on the precise grading plan submitted for City Engineer’s
approval shall conform with pad elevations shown on the tentative map, unless the
pad elevations have other requirements imposed elsewhere in these Conditions of
Approval.
44. Prior to any site grading or regrading that will raise or lower any portion of the site by
more than plus or minus half of a foot (0.5’) from the elevations shown on the
approved Tentative Tract Map, the applicant shall submit the proposed grading
changes to the City Engineer for a substantial conformance review.
45. Prior to the issuance of a building permit for any building lot, the applicant shall
provide a lot pad certification stamped and signed by a qualified engineer or surveyor
with applicable compaction tests and over excavation documentation.
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
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Each pad certification shall list the pad elevation as shown on the approved grading
plan, the actual pad elevation and the difference between the two, if any. Such pad
certification shall also list the relative compaction of the pad soil. The data shall be
organized by lot number, and listed cumulatively if submitted at different times.
46. This development shall comply with LQMC Chapter 8.11 (Flood Hazard Regulations).
If any portion of any proposed building lot in the development is or may be located
within a flood hazard area as identified on the City’s Flood Insurance Rate Maps, the
development shall be graded to ensure that all floors and exterior fill (at the
foundation) are above the level of the project (100-year) flood and building pads are
compacted to 95% Proctor Density as required in Title 44 of the Code of Federal
Regulations, Section 65.5(a) (6). Prior to issuance of building permits for lots which
are so located, the applicant shall furnish elevation certifications, as required by
FEMA, that the above conditions have been met.
DRAINAGE
47. Stormwater handling shall conform with the approved hydrology and drainage report
for Tentative Parcel Map 37207, SDP 2016-0005 SilverRock or as approved by the
City Engineer. Nuisance water shall be disposed of in an approved manner.
48. The applicant shall comply with the provisions of LQMC Section 13.24.120 (Drainage),
Retention Basin Design Criteria, Engineering Bulletin No. 06-16 – Hydrology Report
with Preliminary Hydraulic Report Criteria for Storm Drain Systems and Engineering
Bulletin No. 06-015 - Underground Retention Basin Design Requirements. More
specifically, stormwater falling on site during the 100 year storm shall be retained
within the development, unless otherwise approved by the City Engineer. The design
storm shall be either the 1 hour, 3 hour, 6 hour or 24 hour event producing the
greatest total run off.
49. Nuisance water shall be retained on site. Nuisance water shall be disposed of per
approved methods contained in Engineering Bulletin No. 06-16 – Hydrology Report
with Preliminary Hydraulic Report Criteria for Storm Drain Systems and Engineering
Bulletin No. 06-015 - Underground Retention Basin Design Requirements.
50. Stormwater may not be retained in landscaped parkways or landscaped setback lots
unless approved by the City Engineer. Only incidental storm water (precipitation
which directly falls onto the setback) will be permitted to be retained in the landscape
setback areas. The perimeter setback and parkway areas in the street right-of-way
shall be shaped with berms and mounds, pursuant to LQMC Section 9.100.040(B)(7).
51. The design of the development shall not cause any increase in flood boundaries and
levels in any area outside the development.
52. The development shall be graded to permit storm flow in excess of retention capacity
to flow out of the development through a designated overflow and into the historic
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 12 of 16
drainage relief route.
53. Storm drainage historically received from adjoining property shall be received and
retained or passed through into the historic downstream drainage relief route.
54. The applicant shall comply with applicable provisions for post construction runoff per
the City’s NPDES stormwater discharge permit, LQMC Sections 8.70.010 et seq.
(Stormwater Management and Discharge Controls), and 13.24.170 (Clean Air/Clean
Water); Riverside County Ordinance No. 457; and the California Regional Water
Quality Control Board – Colorado River Basin (CRWQCB-CRB) Region Board Order
No. R7-2013-0011 and the State Water Resources Control Board’s Order No. 2009-
0009-DWQ and Order No. 2010-0014-DWQ.
A. For post-construction urban runoff from New Development and
Redevelopments Projects, the applicant shall implement requirements of the
NPDES permit for the design, construction and perpetual operation and
maintenance of BMPs per the approved Water Quality Management Plan
(WQMP) for the project as required by the California Regional Water Quality
Control Board – Colorado River Basin (CRWQCB-CRB) Region Board Order No.
R7-2013-0011.
B. The applicant shall implement the WQMP Design Standards per (CRWQCB-
CRB) Region Board Order No. R7-2013-0011 utilizing BMPs approved by the
City Engineer. A project specific WQMP shall be provided which incorporates
Site Design and Treatment BMPs utilizing first flush infiltration as a preferred
method of NPDES Permit Compliance for Whitewater River receiving water, as
applicable.
C. The developer shall execute and record a Stormwater Management/BMP
Facilities Agreement that provides for the perpetual maintenance and
operation of stormwater BMPs.
UTILITIES
55. The applicant shall comply with the provisions of LQMC Section 13.24.110 (Utilities).
56. The applicant shall obtain the approval of the City Engineer for the location of all
utility lines within any right-of-way, and all above-ground utility structures including,
but not limited to, traffic signal cabinets, electric vaults, water valves, and telephone
stands, to ensure optimum placement for practical and aesthetic purposes.
All existing utility lines attached to joint use 92 KV transmission power poles are
exempt from the requirement to be placed underground.
57. Underground utilities shall be installed prior to overlying hardscape. For installation
of utilities in existing improved streets, the applicant shall comply with trench
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CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
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restoration requirements maintained, or required by the City Engineer.
The applicant shall provide certified reports of all utility trench compaction for
approval by the City Engineer. Additionally, grease traps and the maintenance
thereof shall be located as to not conflict with access aisles/entrances.
CONSTRUCTION
58. The City will conduct final inspections of habitable buildings only when the buildings
have improved street and (if required) sidewalk access to publicly-maintained streets.
The improvements shall include required traffic control devices, pavement markings
and street name signs. If on-site streets in residential developments are initially
constructed with partial pavement thickness, the applicant shall complete the
pavement prior to final inspections of the last ten percent of homes within the
development or when directed by the City, whichever comes first.
LANDSCAPE AND IRRIGATION
59. The applicant shall comply with LQMC Sections 13.24.130 (Landscaping Setbacks) &
13.24.140 (Landscaping Plans).
60. The applicant shall provide landscaping in the required setbacks, retention basins,
and common lots.
61. All new landscape areas shall have landscaping and permanent irrigation
improvements in compliance with the City’s Water Efficient Landscape regulations
contained in LQMC Section 8.13 (Water Efficient Landscape).
62. The applicant shall submit final landscape plans for review, processing and approval
to the Design and Development Department, in accordance with the Final Landscape
Plan application process. Planning Manager approval of the final landscape plans is
required prior to issuance of the first building permit unless the Design and
Development Director determines extenuating circumstances exist which justify an
alternative processing schedule.
NOTE: Plans are not approved for construction until signed by the appropriate City
official, including the Planning Manager and/or City Engineer.
Prior to final approval of the installation of landscaping, the Landscape Architect of
record shall provide the Design and Development Department a letter stating he/she
has personally inspected the installation and that it conforms with the final
landscaping plans as approved by the City.
If staff determines during final landscaping inspection that adjustments are required
in order to meet the intent of the Planning Commission’s approval, the Planning
Manager shall review and approve any such revisions to the landscape plan.
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 14 of 16
63. All landscaping shall consist of, at minimum, 36” box trees (i.e., a minimum 2.5 inch
caliper measured three feet up from grade level after planting), shrubs, and
groundcover. Double lodge poles (two-inch diameter) shall be used to brace and
stake trees.
64. A minimum of 50% of plantings classified “Shrubs, Perennials and Annuals” shall be
provided as 5 gallon plants. This requirement shall be implemented on each Final
Landscaping Plan submitted for review and approval to the City.
MAINTENANCE
65. The applicant shall comply with the provisions of LQMC Section 13.24.160
(Maintenance).
66. The applicant shall make provisions for the continuous and perpetual maintenance of
all private on-site improvements, common areas, perimeter landscaping up to the
curb, access drives, sidewalks, and stormwater BMPs.
67. The Applicant acknowledges that the City intends to form a SilverRock Landscape and
Lighting District and, by recording a subdivision map, agrees to be included in the
District and to offer for dedication such easements as may be required for the
maintenance and operation of related facilities. Any assessments will be done on a
benefit basis, as required by law.
68. The Applicant shall make provisions for maintenance of all common areas, public
landscape areas, and storm water retention areas within Parcel Map No. 37207 via
one or a combination of the following methods prior to final map approval:
A. Applicant shall consent to the formation of a maintenance district under
Chapter 26 of the Improvement Act of 1911 (Streets and Highways Code,
Section 5820 et seq.) or the Lighting and Landscaping Act of 1972 (Streets and
Highways Code 22600 et seq.) to implement maintenance of all improved
public landscape areas, landscape buffer, and storm water retention areas. It
is understood and agreed that the Developer/Applicant shall pay all costs of
maintenance for said improved common areas until such time as tax revenues
are received from assessment of the real property.
B. Applicant shall submit to the Design and Development Department
Management and Maintenance Agreement, to be entered into with the unit/lot
owners of this land division, in order to insure all private common areas and
facilities will be maintained. A homeowner’s association or associations shall
be created with the unqualified right to assess the owners of the individual
units for reasonable maintenance costs. The association shall have the right to
lien the property of any owners who default in the payment of their
assessments.
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 15 of 16
FEES AND DEPOSITS
69. The applicant shall comply with the provisions of LQMC Section 13.24.180 (Fees and
Deposits). These fees include all deposits and fees required by the City for plan
checking and construction inspection. Deposits and fee amounts shall be those in
effect when the applicant makes application for plan check and permits.
70. Permits issued under this approval shall be subject to the provisions of the
Development Impact Fee and Transportation Uniform Mitigation Fee programs in
effect at the time of issuance of building permit(s).
FIRE DEPARTMENT
71. Fire Hydrants and Fire Flow: Provide one copy of the water system plans to show
there exist fire hydrant(s) capable of delivering the minimum fire flow, per CFC
Appendix B Table B105.1, within 600 feet to all portions around the proposed
structures. Minimum fire hydrant location and spacing shall comply with the CFC and
NFPA 24. Reference 2016 California Fire Code (CFC) 507.5.1
72. Tract Water Plans: Applicant/developer shall furnish plans of the water system fire
hydrant plans to Fire Department for review and approval prior to building permit
issuance. Plans shall be signed by a registered civil engineer, and shall confirm
hydrant type, location, spacing, and minimum fire flow. Once plans are signed and
approved by the local water authority, the originals shall be presented to the Fire
Department for review and approval. Ref. CFC 105.4.1
73. Requests for installation of traffic calming designs/devices on fire apparatus access
roads shall be submitted and approved by the Office of the Fire Marshal. Ref. CFC
503.4.1
74. Grading Permit Fire Department Review: Submittal to the Office of the Fire Marshal
for Precise Grading Permit will be required. Access roads shall be provided to within
300-feet to all portions of all buildings and shall have an unobstructed width of not
less than 24 feet. Driveway access to lots 1 through 4 shall comply with RVC Fire #TP
16-001. The construction of the access roads shall be all weather and capable of
sustaining 40,000 lbs. over two axles for areas of residential development and 60,000
lbs. over two axels for commercial developments. Ref. CFC 503.1.1 and 503.2.1 as
amended by the City of La Quinta.
75. Construction Permits Fire Department Review: Submittal of construction plans to the
Office of the Fire Marshal for development, construction, installation and operational
use permitting will be required. Final fire and life safety conditions will be addressed
when the Office of the Fire Marshal reviews these plans. These conditions will be
based on occupancy, use, California Building Code (CBC), California Fire Code, and
related codes, which are in effect at the time of building plan submittal.
PLANNING COMMISSION RESOLUTION 2019-012
CONDITIONS OF APPROVAL – FINAL
TENTATIVE TRACT MAP 2019-0002 (TTM 37730)
SILVERROCK RESIDENCES
ADOPTED: DECEMBER 10, 2019
Page 16 of 16
76. Phased Construction Access: If construction is phased, each phase shall provide
approved access for fire protection prior to any construction. Ref. CFC 503.1
77. Residential Fire Sprinklers: Residential fire sprinklers are required in all one and two-
family dwellings per the California Residential Code (CRC). Plans must be submitted
to the Office of the Fire Marshal for review and approval prior to installation. Ref. CRC
313.2
78. Knox Box and Gate Access: Buildings shall be provided with a Knox Box. The Knox
Box shall be installed in an accessible location approved by the Office of the Fire
Marshal. All electronically operated gates shall be provided with Knox key switches
and automatic sensors for access. Ref. CFC 506.1
79. Addressing: All residential dwellings shall display street numbers in a prominent
location on the street side of the residence. All commercial buildings shall display
street numbers in a prominent location on the address side and additional locations
as required. Ref. CFC 505.1 and County of Riverside Office of the Fire Marshal
Standard #07-01.
80. Emergency Turn-Around: Prior to approval of the Final Tract Map, turn arounds shall
be required for driveway Lots B and C or another circulating feature as approved by
the Fire Department and the City Engineer.
81. The applicant shall obtain a separate Alternate Materials and Methods approval from
the Fire Department for the proposed hybrid paved and grasspave2 surface for the
emergency vehicle access road.