HomeMy WebLinkAboutCUP 10-10; Carlsbad Kingdom Hall; Conditional Use Permit (CUP) (7)I
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(SUP 10-03 & CUP 10-10)
CITY OF CARLSBAD
ENGINEERING DIVISION
RECEIVED
MAR 2 4 2011
~~:y ,?.~,CARLSBAD
~····,,\)\I' ~.'r" DEP -~~~\-' ~. ·-T
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PRIORITY DEVELOPMENT PROJECT
STORM WATER MANAGEMENT PLAN
FOR
CARLSBAD KINGDOM HALL
E~NEER07/. L k
VINCENT L. SAMPO-ACE 44173-EXPIRATION 06/30/2011
PREPARED FOR:
PALOMAR CONGREGATION OF JEHOVAH'S WITNESSES
PREPARED BY:
SAMPO ENGINEERING, INC.
1034 SECOND STREET
ENCINITAS, CA 92024
760-436-0660
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Sampo Engineering, Inc.
Priority Development Storm Water Management Plan 1
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TABLE OF CONTENTS
1. Project Setting
2. Applicable Storm Water Standards
3. Identify Pollutants of Concern
4. Source Control Measures
5. Low Impact Development (LID) Design Strategies
6. Integrated Management Practices (IMP's)
7. Documentation of Storm Water Design
8. BMP Facility Maintenance Requirements
9. SWMP Certification Statements
Attachments:
Vicinity Map
Storm Water Standards Questionnaire (SWSQ) E-34
Post-Construction BMP Exhibit
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Sampo Engineering, Inc.
Priority Development Storm Water Management Plan 2
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1.0 Project Setting
The subject property is located at the easterly terminus of Camino Vida Roble in
Carlsbad, California and is approximately 5.25 acres in size. The property is legally
described as Parcel2 of Parcel Map 20174 (APN: 213-110-16) and is bounded on the
west by El Camino Real and to the east by open space.
The subject property has been previously graded (Project No. MS 05-05, Dwg No. 442-
6A) and is currently vacant. From the westerly boundary of the project, also being El
Camino Real, the land descends at approximately 2:1 to the existing pad area and then
descends again at approximately 2:1 to the easterly property line and open space
preserve. The northerly portion of the subject property that is accessed via the Camino
Vida Roble cui de sac, is relatively flat (2% slope) and drains to the northeast to an
existing desilting basin, then to the public storm drain before discharging to the east near
the toe of an existing manufactured 2:1 slope. The southerly portion of the property has
an existing pad area located just southerly of the Camino Vida Roble cul de sac as well as
an existing 27' wide asphalt pavement road that continues to the southerly property line.
Drainage southerly of Camino Vida Roble and easterly of the existing private road drains
to an existing desilting basin, then to the storm drain system before being discharged to
the east near the toe of an existing manufactured 2:1 slope.
The project proposes two phases of construction. The first being a 5,000 square foot
Church, one care taker residence of 879 square feet, parking areas, private driveway,
flatwork and landscaping on the northerly portion of the subject property (north of
Camino Vida Roble). The second phase of construction being an overflow parking lot,
pedestrian path, and landscaping on the southerly portion of the subject property (south of
Camino Vida Roble). No buildings are proposed south of Camino Vida Roble.
Per the County of San Diego Hydrology Manual's Soil Hydrologic Group Map the
project appears to have soil groups B & D present.
In preparation of this Storm Water Mitigation Plan for the Carlsbad Kingdom Hall,
Sampo Engineering, Inc. (SEI) reviewed the previously submitted project plans, plan
review letter from the City of Carlsbad Planning Division, dated October 20, 2010,
"Update Geotechnical Report, Villages of La Costa-the Greens; Neighborhood 1.02,
Kingdom Hall, Carlsbad, California," prepared by GeoCon, Inc. dated October 20, 2008,
and miscellaneous record drawings for the subject property.
SEI conducted a site visit and field reconnaissance on February 1, 2011 to verify existing
drainage patterns and potential sources of pollution. Photos were taken of the
undeveloped project area, private road, drainage structures, and landscaping that
currently exists.
SEI prepared a Hydrology Study of the project area to assist with preparation of this
SWMP.
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Sampo Engineering, Inc.
Priority Development Storm Water Management Plan 3
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No evidence of erosion was observed during SEI's site visit of February 2, 2011. The
two existing desilting basins appeared to be functioning and in good shape. Very little
trash or debris was found within the project area.
1.1 Site Development Opportunities and Constraints
As with any proposed development, the proposed project has its own unique
characteristics that present opportunities and constraints for storm water control and
treatment. Some constraints that are anticipated for the proposed development of the
project are based on the existing topography and underlying soil conditions. The project
area lies within a previously graded area that is relatively flat with manufactured slopes to
the west and east of the pad area. Per the project's Geotechnical Report the existing
underlying soil has a low permeability, and therefore infiltration is not recommended for
the subject property. Due to the soil's low permeability and preventing infiltration
adjacent to building foundations from the proposed permeable pavers driveway and
bioretention areas impermeable liners will need to be utilized. No significant vegetation
exists on the site that would need to be removed for the proposed development. In
addition, no Environmentally Sensitive Areas (ESA's) are located on or in the near
vicinity of the site.
The site presents opportunities for storm water control and treatment. Although much of
the property consists of steep, manufactured slopes, a considerable area still remains of
relatively flat, usable land. A required fifty-foot wide landscaping buffer adjacent to El
Camino Real that prohibits any structures or hardscape of any kind allows a portion of
the area to be used for storm water treatment and control employing Integrated
Management Practices (IMP's) for a portion of the area. An existing public storm drain
and energy dissipater is located on the northerly side that can be utilized to control
project runoff. Additionally, on the southerly portion of the subject property there is an
existing desilting basin that will be modified to meet current storm water standards to
treat runoff from the proposed over-flow parking lot as well as control runoff.
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Sampo Engineering, Inc.
Priority Development Storm Water Management Plan 4
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1.2 Nearby Water Bodies, Existing Storm Drain Systems
Two existing public storm drain systems are located on the subject property. An existing
curb inlet located in the cul de sac of Camino Vida Roble that drains southerly to a storm
drain located within the existing private road to a junction with two additional curb inlets
before discharging to the property to the east. The second storm drain system collects
storm water from El Camino Real and crosses the northerly portion of the subject
property via public drainage easement, and discharges near the easterly property line of
the subject property.
Storm water draining from the property travels overland easterly in an existing open
space area, then southerly through a golf course for approximately two miles until
reaching the San Marcos Creek. The San Marcos Creek then flows westerly for
approximately one-half mile to the Batiquitos Lagoon before reaching the Pacific Ocean.
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Sampo Engineering, Inc.
Priority Development Storm Water Management Plan 5
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2.0 Applicable Storm Water Standards
The project has been determined to be classified as a Priority Development Project.
Storm water quality standards will be required per the current City of Carlsbad SUSMP.
LID and numerically sized treatment control facilities are designed for the project hereon.
The newly adopted Hydromodification standards are applied.
See attached Storm Water Standards Questionaire (E-34)
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Priority Development Storm Water Management Plan
Sampo Engineering, Inc.
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3.0 Identify Pollutants of Concern
The proposed project will include a public assembly building, driveways and parking lot,
and a caretaker residence. Pollutants anticipated for this type of land use are sediment,
heavy metals, organic compounds, trash & debris, oil & grease, and bacteria & viruses.
Potential pollutants consist of nutrients, oxygen demanding substances, and pesticides.
The project lies within the Carlsbad Watershed in the San Marcos Hydrologic Area
(904.5). Storm water from the site drains to the San Marcos Creek and then flows
westerly to the Batiquitos Lagoon before reaching the Pacific Ocean.
The San Marcos Creek is listed as an impaired water body per 303d listing for ODE,
phosphorous, and sediment toxicity.
The Batiquitos Lagoon has many beneficial uses including public trails surrounding the
lagoon, and fishing.
Sediment toxicity is a primary pollutant-of-concern for the proposed project and shall be
mitigated with treatment control BMP's.
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Sampo Engineering, Inc.
Priority Development Storm Water Management Plan 7
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4.0 Source Control Measures
Source Control BMP's consist of scheduling of activities, prohibition of certain practices,
maintenance procedures, and education to prevent storm water pollution by reducing the
potential for contamination at the source. Proper site planning, land use, and structural or
nonstructural measures can achieve this.
POTENTIAL PERMANENT SOURCE CONTROL BMP'S
SOURCE OF
RUNOFF
POLLUTANTS
A. On-site storm Mark all inlets with the words, "No Dumping!
drain inlets Flows to Ocean"
B. Need for Buildings designed to discourage entry of pests
future indoor &
structural pest
control
C. Landscape/ Final Landscape Plans shall:
Outdoor • Preserve existing native trees, shrubs, and
Pesticide Use ground cover to the maximum extent
practical.
• Design landscaping to minimize irrigation
and runoff, to promote surface infiltration
where appropriate, and to minimize the use
of fertilizers and pesticides that can
contribute to storm water pollution.
• Where landscaped areas are used to retain or
detain storm water, specify plants that are
tolerant of saturated soils conditions.
• Consider using pest resistant plants,
especially adjacent to hardscape.
• To insure successful establishment, select
plants appropriate to site soils, slopes,
climate, sun, wind, rain, land use, air
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Priority Development Storm Water Management Plan
OPERATIONAL SOURCE
CONTROL BMP'S
• Maintain and periodically
repaint or replace inlet
markings.
• Provide storm water pollution
prevention information to
new site owners, lessees, or
operators.
• See applicable operational
BMP's in Fact Sheet SC-44,
"Drainage System
Maintenance," in the CASQA
Handbook.
• Provide Integrated Pest
Management information to
owners, lessees, and
operators.
• Maintain landscaping using
minimum or no pesticides.
• See applicable operational
BMP's in Fact Sheet SC-41,
"Building and Grounds
Maintenance," in the CASQA
Stormwater Quality
Handbook
• Provide IPM information to
new owners, lessees, and
operators.
Sampo Engineering, Inc.
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movement, ecological consistency, and plant
interactions.
POTENTIAL PERMANENT SOURCE CONTROL
SOURCE OF BMP'S
RUNOFF
POLLUTANTS
D. Refuse Areas • Site refuse to be handled in trash
enclosure located adjacent to private
driveway.
• Signs will be posted on or near
dumpsters with the words, "Do not
dump hazardous materials here."
E. Vehicle and Car wash area not provided on-site. No
Equipment facilities will be made available.
Cleaning
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Priority Development Storm Water Management Plan
OPERATIONAL SOURCE CONTROL
BMP'S
Adequate number of receptacles to be
located on site, inspected for leaks regularly,
and covered. Any spills to be cleaned up
immediately.
Not Applicable
Sampo Engineering, Inc.
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5.0 Low Impact Development (LID) Design Strategies
The project proposes to create a parking lot and private driveway of more than 5,000
square feet of impervious surface, thereby classifying the project as a "Priority
Development Project." The proposed development utilizes Low Impact Development
(LID) principles to the Maximum Extent Practical. The project proposes using an
undeveloped pad area on-site to construct a church, driveway, parking lot, and caretaker
unit. Although no natural landforms exist since the site has been previously graded, the
project proposes to optimize the site layout by minimizing additional impervious areas by
minimizing the size of the church, parking lot, and caretaker unit. The project also
proposes preserving the relatively flat pervious areas. Rather than using asphalt paving
or concrete for the driveways and parking areas, the project proposes to use permeable
pavers with an impermeable liner near the base of the paver section. Landscaping or
ground cover will be used outside of the parking lot to prevent erosion of the surface of
the soil and slopes, enhance moisture retention, and inhibit the growth of weeds.
Although no natural drainage courses exist following the original development of the site,
the project proposes to maintain draining the undeveloped pad areas to the existing storm
drains located on-site prior to discharging to the open space to the east of the project.
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Priority Development Storm Water Management Plan
Sampo Engineering, Inc.
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6.0 Integrated Management Practices (IMP's)
To satisfy storm water quality standards for treatment and flow control the project
proposes the use of Integrated Management Practices (IMP's). As a "Priority
Development Project," numerically sized IMP's will be incorporated with the design of
the project for treatment control. Since the project will disturb more than one acre,
hydromodification requirements will also be implemented for flow control. Multiple
Bioretention facilities will be integrated with the landscape design to provide treatment
and flow control of runoff from the proposed church, driveway, parking areas, and
caretaker residence to target the pollutants of concern.
Bioretention detains runoff in a surface reservoir, filters it through plant roots and a
biologically active soil mix, stores runoff in a subsurface aggregate storage layer, and
then infiltrates it into the ground. Per the project's soils engineer's recommendations the
bioretention facilities shall be underlain with an impermeable liner and sub drain system
because of the native soils low permeability. Since infiltration cannot be allowed, sizing
factors and criteria for the flow through planter will be utilized.
Sizing of the bioretention basins uses sizing factors from the County of San Diego Final
Hydromodification Plan. Conservative values for Lower Flow Thresholds (0.102) and
Soil Group (Type D) will be used for the sizing calculations. The Oceanside Rain Gauge
will be used as it is the nearest to the site.
See attached BMP Site Plan for IMP locations and the following tabulation for
calculations of the sizing for the treatment and flow control facilities.
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Sampo Engineering, Inc.
Priority Development Storm Water Management Plan 11
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7.0 Documentation of Storm Water Design
To satisfy storm water quality standards for treatment and flow control the project
proposes the use of Integrated Management Practices (IMP's). The project site has been
divided into three Drainage Management Areas (DMA's) and each DMA drains to one
IMP area for storm water treatment and flow control (see attached BMP Site Plan). The
following tables show the calculations and sizing factors used to calculate the IMP's.
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Priority Development Storm Water Management Plan
Sampo Engineering, Inc.
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DMACode: 1 Total Basin Area: 27,604
DMA Description: Northerly portion of parking lot and caretaker unit
Soil Type: IMP Name
Post-project DMA Runoff DMAareax
lflow throuqh planter I surface type DMA Area (s!}_ factor runoff factor D
roof/hardscape 1,282 1.0 1,282
paver parking 9,830 0.2 1,966
landscapinq 16,492 0.1 1,649
Sum 27,604 Total 4,897/
IMP Sizing Total Minimum Proposed
factor Area Size Size
Minimum IMP Area (sf) A 0.1600 4,897 784 799
Minimum IMP Surface Volume (cf) V1 0.1333 4,897 653 827
Minimum IMP Subsurface Volume (cf) V2 0.0960 4,897 470 479
DMACode: 2 Total Basin Area: 57,522
DMA Description: Church, driveway and parking lot
Soil Type: IMP Name
Post-project DMA Runoff DMAareax
lflow through planter I surface type DMA Area (sf) factor runoff factor D
roof/hardscape 8,721 1.0 8,721
paver parking 16,732 0.2 3,346
landscaping 32,069 0.1 3,207
Sum 57,522 Total 15,274\
IMP Sizing Total Minimum Proposed
factor Area Size Size
Minimum IMP Area (sf) A 0.1600 15,274 2,444 2,504
Minimum IMP Surface Volume (cf) V1 0.1333 15,274 2,036 2,316
Minimum IMP Subsurface Volume (cf) V2 0.0960 15,274 1,466 1,520
DMACode: 3 Total Basin Area: 26,157
DMA Description: Southerly parking lot
Post-project DMA Runoff
surface t}'Q_e DMA Area (sf) factor
roof/hardscape 863 1.0
paver parking 6,679 0.2
landscaping 18,615 0.1
Sum 26,157
Minimum IMP Area (sf)
Minimum IMP Surface Volume (cf)
Minimum IMP Subsurface Volume (cf)
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
DMAareax
runoff factor
863
1,336
1,862
Total
A
V1
V2
Soil T_y):)_e: IMP Name
D lflow through planter I
4,060\
IMP Sizing Total Minimum Proposed
factor Area Size Size
0.1600 4,060 650 785
0.1333 4,060 541 554
0.0960 4,060 390 392
Sampo Engineering, Inc.
Priority Development Storm Water Management Plan 13
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8.0 BMP Facility Maintenance Requirements
The City Engineer will not consider structural Treatment Control BMPs and LID IMPs as
meeting the maximum extent practicable standard (MEP), unless the applicant identifies a
specific maintenance mechanism and implements a storm water operation and
maintenance plan (O&M Plan) to ensure ongoing long-term inspection and maintenance
of all structural Treatment Control BMPs and IMPs. This mechanism shall be proposed
by the applicant as part of the SWMP. Processing an O&M Plan is among the
requirements to obtain a grading permit during the final engineering phase of a Priority
Development Project.
The SWMP identifies one of the following Priority Development Project maintenance
mechanisms to ensure long-term facility maintenance.
A supporting O&M Plan will be developed and approved during the final engineering
phase of the project and prior to issuance of grading permit.
Maintenance Mechanism
Conditional use permits -For discretionary projects only, the City may assure
D maintenance of storm water BMPs through the inclusion of maintenance conditions in the
conditional use _Qermit. A non-refundable security may be required.
Project proponent agreement to maintain storm water BMPs -The City may enter
~ into a contract with the project proponent obliging the project proponent to maintain,
repair and replace the storm water BMP as necessary into perpetuity. A non-refundable
security may be required.
Conditional use permits -For discretionary projects only, the City may assure
D maintenance of storm water BMPs through the inclusion of maintenance conditions in the
conditional usepermit. A non-refundable security may be required.
Lease provisions -In those cases where the City holds title to the land in question and
D the land is being leased to another party for private or public use, the City may assure
storm water BMP maintenance, repair and replacement throug_h conditions in the lease.
Assessment districts -The City may approve an Assessment District or other funding
D mechanism created by the project proponent to provide funds for storm water BMP
maintenance, repair and replacement on an ongoing basis. Any agreement with such a
District shall be subj ect to the Public Entity Maintenance Provisions below.
Public entity maintenance -The City may approve a public or acceptable quasi-public
entity (e.g., the County Flood Control District, or annex to an existing assessment district,
an existing utility district, a state or federal resource agency, or a conservation
conservancy) to assume responsibility for maintenance, repair and replacement of the
BMP. Public entity maintenance agreements shall ensure estimated costs and front-funded
D or reliably guaranteed, (e.g., through a trust fund, assessment district, fees, bond, letter of
credit or similar means). In addition, the City may seek protection from liability by
appropriate releases and indemnities. The City Engineer shall have the authority to
approve storm water BMPs proposed for transfer to any other public entity within its
jurisdiction before installation. The City shall be involved ln the negotiation of
maintenance requirements with any other public entities accepting maintenance
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Sampo Engineering, Inc.
Priority Development Storm Water Management Plan 14
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responsibilities within their respective jurisdictions; and in negotiations with the resource
agencies responsible for issuing permits for the construction and/or maintenance of the
facilities. The City must be identified as a third party beneficiary empowered to enforce
any such maintenance agreement within their respective jurisdictions.
Alternative mechanisms -The City may accept alternative maintenance mechanisms if
0 such mechanisms are as protective as those listed above. Alternative mechanisms must be
approved by the City Attorney and the City Engineer.
Comment: The Applicant will enter maintenance agreement with the City to satisfy storm water
maintenance requirements.
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Priority Development Storm Water Management Plan
Sampo Engineering, Inc.
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9.0 SWM P Certification Statement
The selection, sizing, and preliminary design of storm water treatment and other control
measures in this plan meet the requirements of Regional Water Quality Control Board
Order R9-2007-0001 and subsequent amendments.
I understand and acknowledge that the plan check review of the Storm Water Mitigation
Plan by the City of Carlsbad is a review for the limited purpose of ensuring the Plan and
design complies with requirements of the City, Regional Water Quality Control Board,
San Diego Region, and other applicable policies and ordinances. The review of this plan
by City Staff is not a determination of the technical adequacy of the design of Storm
Water Mitigation Plan. Such review of the Plan does not relieve me of my responsibility
for the design and content of the Storm Water Mitigation Plan.
Carlsbad Kingdom Hall (SUP 10-03 & CUP 10-10)
tL b.L'? 44173
Vincent L. Sampo PE No.
Engineer-of-Work
Sampo Engineering, Inc.
1034 Second Street
Encinitas, CA 92024
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
Priority Development Storm Water Management Plan
Sampo Engineering, Inc.
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Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
ATTACHMENTS
Priority Development Storm Water Management Plan
Sampo Engineering, Inc.
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Vicinity Map
Carlsbad Kingdom Hall
SUP 10-03 & CUP 10-10
\ \
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~ceer..w ~:or ,,.,..,..
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Priority Development Storm Water Management Plan
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Sampo Engineering, Inc.
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H ydrology Calculations
p re-Development Rational Method Hydrology Calculations (DMA 1, 2)
Fr
Storm C Area Q I Tc
1 00-year 2.8 0.35 3.26 1.95 17.8 2.2
p re-Development Rational Method Hydrology Calculations (DMA 3)
Fr
Storm C Area Q I Tc
1 00-year 2.8 0.35 3.69 0.60 14.6 0.8
p ost-Development Rational Method Hydrology Calculations at Node X (DMA 1)
Fr
Storm C Area Q I Tc
1 00-year 2.8 0.45 3.75 0.63 14.3 1.1
p ost-Development Rational Method Hydrology Calculations at Node Y (DMA 2)
Fr
Storm C Area Q I Tc
1 00-year 2.8 0.50 4.39 1.32 11.2 2.9
p ost-Development Rational Method Hydrology Calculations at Node Z (DMA 3)
Fr
Storm C Area Q I Tc
1 00-year 2.8 0.42 3.69 0.60 14.6 0.9
c arlsbad Kingdom Hall
UP 10-03 & CUP 10-10
Sampo Engineering, Inc.
s
Pr iority Development Storm Water Management Plan 19
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«~ ~ CITY OF
CARLSBAD
INSTRUCTIONS:
STORM WATER
STANDARDS
QUESTIONNAIRE
E-34
Development Services
Land Development Engineering
1635 Faraday Avenue
760-602-2750
www.carlsbadca.gov
To address post-development pollutants that may be generated from development projects, the City requires that new
development and significant redevelopment priority projects incorporate Permanent Storm Water Best Management
Practices (BMP's) into the project design per the City's Standard Urban Stormwater Management Plan (SUSMP). To
view the SUSMP, refer to the Engineering Standards (Volume 4, Chapter 2) at www.carlsbadca.gov/standards.
Initially this questionnaire must be completed by the applicant in advance of submitting for a development application
(subdivision, discretionary permits and/or construction permits). The results of the questionnaire determine the level of
storm water standards that must be applied to a proposed development or redevelopment project. Depending on the
outcome, your project will either be subject to 'Standard Stormwater Requirements' or be subject to additional criteria
called 'Priority Development Project Requirements'. Many aspects of project site design are dependent upon the
storm water standards applied to a project.
Your responses to the questionnaire represent an initial assessment of the proposed project conditions and impacts.
City staff has responsibility for making the final assessment after submission of the development application. If staff
determines that the questionnaire was incorrectly filled out and is subject to more stringent storm water standards than
initially assessed by you, this will result in the return of the development application as incomplete. In this case, please
make the changes to the questionnaire and resubmit to the City.
If you are unsure about the meaning of a question or need help in determining how to respond to one or more of the
questions, please seek assistance from Land Development Engineering staff.
A separate completed and signed questionnaire must be submitted for each new development application submission.
Only one completed and signed questionnaire is required when multiple development applications for the same project
are submitted concurrently. In addition to this questionnaire, you must also complete, sign and submit a Project Threat
Assessment Form with construction permits for the project.
Please start by completing Section 1 and follow the instructions. When completed, sign the form at the end and submit
this with your application to the city.
!SECTION 1 NEW DEVELOPMENT
Does your project meet one or more of the following criteria: YES NO
1. Housing subdivisions of 10 or more dwelling units.
condominium and apartments
Examples: single family homes, multi-family homes, X
2. Commercial-greater than 1-acre. Any development other than heavy industry or residential. Examples: hospitals;
laboratories and other medical facilities; educational institutions; recreational facilities; municipal facilities; commercial X nurseries; multi-apartment buildings; car wash facilities; mini-malls and other business complexes; shopping malls;
hotels; office buildinqs; public warehouses; automotive dealerships; airfields; and other light industrial facilities.
3. Heavy Industrial I Industry-greater than 1 acre. Examples: manufacturing plants, food processing plants, metal X working facilities, printing plants, and fleet storage areas (bus, truck, etc.).
4. Automotive repair shop. A facility categorized in any one of Standard Industrial Classification (SIC) codes 5013, X 5014, 5541, 7532-7534, and 7536-7539
5. Restaurants. Any facility that sells prepared foods and drinks for consumption, including stationary lunch counters
and refreshment stands selling prepared foods and drinks for immediate consumption (SIC code 5812), where the
X land area for development is greater than 5,000 square feet. Restaurants where land development is less than 5,000
square feet shall meet all SUSMP requirements except for structural treatment BMP and numeric sizing criteria
requirements and hydromodification requirements.
E-34 Page 1 of 3 REV 1/14/11
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«~ ~ CITY OF
CARLSBAD
STORM WATER
STANDARDS
QUESTIONNAIRE
E-34
5 Development Service
Land Development Engineerin
1635 Faraday Aven
760-602-27
www.carlsbadca.g
g
ue
so
ov
6. Hillside development. Any development that creates more than 5,000 square feet of impervious surface and is
located in an area with known erosive soil conditions, where the development will grade on any natural slope that is
twent -five ercent 25% or reater.
7. Environmentally Sensitive Area fESA( All development located within or directly adjacene to or discharging
directly3 to an ESA {where discharges from the development or redevelopment will enter receiving waters within the
ESA), which either creates 2,500 square feet or more of impervious surface on a proposed project site or increases
the area of im erviousness of a ro osed ro·ect site 10% or more of its naturall occurrin condition.
8. Parking lot. Area of 5,000 square feet or more, or with 15 or more parking spaces, and potentially exposed to urban
runoff
9. Streets, roads, highways, and freeways. Any paved surface that is 5,000 square feet or greater used for the
transportation of automobiles, trucks, motorcycles, and other vehicles
10. Retail Gasoline Outlets. Serving more than 100 vehicles per day and greater than 5,000 square feet
11. Coastal Development Zone. Any project located within 200 feet of the Pacific Ocean and (1) creates more than
2500 square feet of impervious surface or {2) increases impervious surface on property by more than 10%.
12. More than 1-acre of disturbance. Project results in the disturbance of 1-acre or more of land and is considered a
Pollutant-generating Development Project4•
X
X
X
X
X
X
X
pecial 1 Environmentally Sensitive Areas include but are not limited to all Clean Water Act Section 303(d) impaired water bodies; areas designated as Areas of S
Biological Significance by the State Water Resources Control Board (Water Quality Control Plan for the San Diego Basin (1994) and amendments); water b
designated with the RARE beneficial use by the State Water Resources Control Board (Water Quality Control Plan for the San Diego Basin (1994) and amendm
areas designated as preserves or their equivalent under the Multi Species Conservation Program within the Cities and County of San Diego; and any other equiv
odies
ents);
alent
environmentally sensitive areas which have been identified by the Copermittees.
2 "Directly adjacent" means situated within 200 feet of the Environmentally Sensitive Area.
3 "Discharging directly to" means outflow from a drainage conveyance system that is composed entirely of flows from the subject development or redevelopment site , and
not commingled with flow from adjacent lands.
ojects 4 Pollutant-generating Development Projects are those projects that generate pollutants at levels greater than background levels. In general, these include all pr
that contribute to an exceedance to an impaired water body or which create new impervious surfaces greater than 5000 square feet and/or introduce new landsc
areas that require routine use of fertilizers and pesticides. In most cases linear pathway projects that are for infrequent vehicle use, such as emergency or mainten
access, or for pedestrian or bicycle use, are not considered Pollutant-generating Development Projects if they are built with pervious surfaces or if they sheet II
aping
ance
ow to
surrounding pervious surfaces.
INSTRUCTIONS:
Section 1 Results:
If you answered YES to ANY of the questions above, your project is subject to Priority Development Project requirements. Skip Section 2
please proceed to Section 3. Check the "meets PRIORITY DEVELOPMENT PROJECT requirements" box in Section 3. Additional storm w
and
ater
requirements will apply per the SUSMP.
If you answered NO to ALL of the questions above, then please proceed to Section 2 and follow the instructions.
E-34 Page 2 of 3 REV 1/14/11
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«~ ~ CITY OF
CARLSBAD
STORM WATER
STANDARDS
QUESTIONNAIRE
E-34
Development Services
land Development Engineering
1635 Faraday Avenue
760-602-2750
www.carlsbadca.gov
INSTRUCTIONS: Complete the questions below regarding your project YES
1. results in the disturbance of 1-acre or more of land and is considered a Pollutant-generating Development
*?
If you answered YES, then you ARE a significant redevelopment and you ARE subject to PRIORITY DEVELOPMENT PROJECT
Please check the "meets PRIORITY DEVELOPMENT PROJECT irements" box in Section 3 below.
2. Is the project redeveloping an existing priority project type? (Priority projects are defined in Section 1)
INSTRUCTIONS: If you answered YES, please proceed to question 3.
If you answered NO, then you ARE NOT a significant redevelopment and your project is subject to STANDARD STORMWATER
REQUIREMENTS. Please check the "does not meet PDP " box in Section 3 below.
3. Is the work limited to trenching and resurfacing associated with utility work; resurfacing and reconfiguring surface
parking lots and existing roadways; new sidewalk; bike lane on existing road and/or routine maintenance of damaged
pavement such as pothole repair? Resurfacing/reconfiguring parking lots is where the work does not expose underlying soil
during construction.
you answered NO, then proceed to question 4.
If you answered YES, then you ARE NOT a significant redevelopment and your project is subject to STANDARD STORMWATER
UIREMENTS. Please check the "does not meet PDP box in Section 3 below.
4. Will your redevelopment project create, replace, or add at least 5,000 square feet of impervious surfaces on existing
developed property or will your project be located within 200 feet of the Pacific Ocean and (1) create 2500 square feet or
more of impervious surface or (2) increases impervious surface on the property by more than 1 0%? Replacement of
existing impervious surfaces includes any activity that is not part of routine maintenance where impervious material(s) are
'""' .. "'""" soil
NO
INSTRUCTIONS: If you answered YES, you ARE a significant redevelopment, and you ARE subject to PRIORITY DEVELOPMENT
PROJECT requirements. Please check the "meets PRIORITY DEVELOPMENT PROJECT requirements" box in Section 3 below. Review
SUSMP to find out if SUSMP requirements apply to your project envelope or the entire project site.
If you answered NO, then you ARE NOT a significant redevelopment and your project is subject to STANDARD STORMWATER
REQUIREMENTS. Please check the "does not meet PDP requirements" box in Section 3 below.
*for definition see Footnote 4 on page 2
My project meets PRIORITY DEVELOPMENT PROJECT (PDP) requirements and must comply with additional stormwater criteria
per the SUSMP and I understand I must prepare a Storm Water Management Plan for submittal at time of application. I understand
flow control (hydromodification) requirements may apply to my project. Refer to SUSMP for details.
D My project does not meet PDP requirements and must only comply with STANDARD STORMWATER REQUIREMENTS per the
SUSMP. As of these I will
Applicant Information and Signature Box
Address:
Camino Vida Roble
E-34
Assessor's Parcel Number(s):
213-110-16
Page 3 of 3
This Box for City Use Only
City Concurrence: I YES I NO
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By:
Date:
Project ID:
REV 1/14/11
---
BMP ID# BMPTYPE SYMBOL CASQA NO. QUANTITY
TREATMENT CONTROL
Q) BIORETENTION
1 ..
TC-32 1EA AREA
® BIORETENTION IIIIE TC-32 1EA AREA
<» BIORETENTION
1 ..
TC-32 1EA AREA
LOW IMPACT DESIGN (L.I.D.)
SOURCE CONTROL
SIGNAGEAND NA SD-13 STAMP AGE
INTEGRA TED PEST NA CONTROL
REFUSE AREAS NA SD-32 1 EA
PERVIOUS ~~~~'2~ SD-20 PAVEMENTS
1®-® !ROOF nRAIN , IL
LANDSCAPING • SD-11 4EA
BMP TABLE
DRAWING NO. SHEET NO.(S) INSPECTION
FREQUENCY
C-1, C-2 PRIOR TO STORMS
OR QUARTERLY
C-1, C-2 PRIOR TO STORMS
OR QUARTERLY
C-1, C-3 PRIOR TO STORMS
OR QUARTERLY
C-1, C-2, C-3 BIANNUALLY
NA MONTHLY
C-1, C-2 WEEKLY
C-1, C-2, C-3 MONTHLY
PRIOR TO STORMS
OR QUARTERLY
MAINTENANCE CONSTRUCTION
FREQUENCY SIGN OFF
BIANNUALLY
BIANNUALLY
BIANNUALLY
ANNUALLY
QUARTERLY
MONTHLY
BIANNUALLY
BIANNUALLY
0
LEGEND
0//lfCllON IF FLOW
PROPERTY UN£
PERMEAIJIE PA VfR ORMJtil Y
ROOF JIIAROSCAP£ 011PtJiMEABL£)
LANSCAPING
8/0fi[TfNllON fliP AIIEA
-
STORMWATER POLLUTION CONTROL
POST CONSTRUCTION BMP!IMP NOTES
1. All IMPER'AIJIJS AIIEAS WTHIN THE SITE SHAll DRAIN TO APPROVED
BIJP AltiP FACJUTI[S AND/OR TO 61/A Ia 011 Wlf)SCAPfD ARfAS IIITH
AiJtliJATE GROIJNOCO~ PR/011 TO DISCI/ARGf fii()IJ THE SITE. All
1/IPERV/WS AREilS MUST SLOPE TOWARD THE APPROVED BliP ;11t1P FAGUTY
AND/OR THE GFIA !ajV.NDSCAPED AIIEA.S:
....
Z NO DRAINS SHAll. BE INSTAI1£D IN HAROSCAP£ DRHfWA)S 011 ANY OTHER /ltiPERVIWS ARfA UNlESS THE FlOW fii()IJ THE Of/AJN DISCI/Af/GfS TO AN
AOEQIJATE /MP;/3/JP.
l DRI!l"WA ~ SHAll HAll" A MIN/IJIJM IZ CROSS SLOPE TOWARD THE /liP /BJIP
AllfA 011 HA'E ANOTHER APPR0'81 DRAINAGf S~TEJITHAT IS /JES/GIIEJJ TO
CO/.L£CT RUNOFF AND DISCI/Af/Gf IT TO AN AOEQIJATE 1/IP;/3/IP.
4. AU ST(}f/j(WA 7ER 1/JP /BuP FAilUffES SHOIIII HEREON SHAU NOT BE MODIFIED 011 ALTERED tHTHOUT A PERli/T fii()IJ THE CITY.
i THE INSTAilA liON rF AODil/ONAL 1/IPERV/OIJS SURfACES NOT SHOIIII ON THIS PLAN AIAY REQ/1111! THAT THIS PLAN BE RfV/SfD Of/THAT A SEPARATE
ENG1NE£RING PERli/T Bf OBTAINED.
--------------------------------------------· ~:---------~--------------
Sflf-lllfA liNG AllfA
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SWMP NO. ____ _
-13~
MAINTENANCE AGREEMENT DOCUMENT: YES _X NO
RECORDATION NO.-----
PARTY RESPONSIBLE FOR MAINTENNJCE:
NAME PALO/JAR CIJIIGREGAllON IF CONTACT MICHAEL PALACIOS
JEHOVAH'S IIIINfSS[S, lo!STA, CA PHONE NO. TEL 858/692-7070
C/0 OA VID PERPICH -PRESIDENT
PHONE NO. ______ _
PLA.N PREPARED BY:
NAME ,_,NCENT L SAUPO
COMPANY SAMPO ENG/1/EER/NC, INC.
ADDRESS 1034 SECOND STREET
ENCINITAS. CA 92024
PHONE NO. 16D-436-0560
BMP NOTES:
CERTIFICATION Ref 44113
1. THESE BMPS ARE MANDATORY TO BE INSTALLED PER MANUFACTURER'S
RECOMMENDATIONS AND THESE PLANS.
2. NO CHANGES TO THE PROPOSED BMPS ON THIS SHEET WITHOUT PRIOR
APPROVAL FROM THE CITY ENGINEER.
3. NO SUBSTITUTIONS TO THE MATERIAL OR TYPES OR PLANTING TYPES
WITHOUT PRIOR APPROVAL FROM THE CITY ENGINEER.
4. NO OCCUPANCY WILL BE GRANTED UNTIL THE CITY INSPECTION STAFF
HAS INSPECTED THIS PROJECT FOR APPROPRIATE BMP CONSTRUCTION
AND INSTALLATION.
-------\--------
''-
HEAVY OUTY. NON-PERAIEAIJIE U"fiER
ALONG S/IJES AND BOTTO/I.
DATE INITlAL
ENGINEER OF WORK
PROPOSED SW//11 DRAIN WllET.
SEE PLAN.
WJJTH PER
8/0RETENllON DETAIL FOR !MA c
NTS
I. 8/0RETENliON ENGINEERED sat. LA YfR SHAll f£ MIN/AlUM 18' DEEP SANDY LOAJI SO/I. MIX IIITH NO MOfl[ THAN 5Z CLAY CONTENT. THE MIX SHAll CONTAIN 50-SOZ SAN/), 2D-JOZ CO!IPOST 011 HAR/JWOOIJ
MULCH, AND 2D-301 TOPSIJL
2. CI.ASS D PERMEAIJIE LA YfR SHAU BE A MIN/MUll IF 0.6' BUT AIAY 8f DEEPENED TO 1/ICI/fASE lifE INRL TRA llON AND STOIIAGf ABIUTY IF IIIE BASIN.
l THE EFFECliff ARF,t SURfACE VOLWftm AND SIJBSURfACf VOWA/f IF THE BASIN SHAll Bf lEla AND IS SIZED fii()IJ Tiff A ~CHED STIJ//11 WA MANAGEJIENT PLAN CALCU/.A HONS.
,_~~-< DRAINS TO /liP
VERIFIED BY•
IIIPERffOIJS AllfA: 1,282 SF
PERAIEAIJIE PA VfR AllfA: 9,830 SF
LANDSCAPf AllfA: 16,492 SF
TOTAL AllfA: 27.504 SF
.f.. DEEP ROOIED, OENiffp DROUGHT JOI[fiANT Pl.AIIHNG SUITAIJIE FOil IIlli DRAINED SOIL SHAll BE PLANIED 'r11THIN lHf l ARfA INSPECTOR DATE
I SH,ET I CITY OF CARLSBAD I SlEETS I
ENGINEERING DEPARTMENT
BMP SITE PLAN
CARLSBAD KINGDOM HALL
APPROVED GLEN K. VAN PESKI
SENIOR CIVIL ENGINEER PE 41204 EXPIRES 3/31/11 DATE
DWN BY: ,100
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PROJECT NO. I DRAWING NO. DATE INITlAL DATE INITlAL CHKD BY: 1n .:; REVISION DESCRIPTION OTHER APPROVAL CITY APPROVAL RVWD BY: ~a s
Ill
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