HomeMy WebLinkAboutCDP 2017-0021; OCEAN STREET RESIDENCE; HYDROLOGY STUDY; 2018-05-20. '
John P. Strohminger
Hydrology Study
2680 Ocean Street
Carlsbad, CA 92008
Ocean Street Residence
CDP 2017-0021/V2017-0004
DWG 510-6A/GR 2018-0009
Prepared for:
Alan Shafran
1673 Amante Court Ml' ?. 4 ,u
LAN . Carlsbad, CA 92011 .. 1...UPMENr
ENGINEERING
Prepared By:
John P. Strohminger RCE 55187
dba Pacific Overland Engineering & Surveying
635 Via Columbia
Vista, CA 92081
Date: May 20, 2018
RCE 55187
1
Date
•,
1 TABLE OF CONTENTS
2 Project Description ................................................................................................................................ 2
2.1 Existing Condition ......................................................................................................................... 2
2.2 Proposed Condition ...................................................................................................................... 3
2.3 Soil Characteristics ........................................................................................................................ 3
3 Rational Method Description ................................................................................................................ 3
4 Hydrology Analysis ................................................................................................................................ 4
5 Water Quality ........................................................................................................................................ 4
6 Hydromodification ................................................................................................................................ 4
7 Conclusion ............................................................................................................................................. 4
8 Attachments .......................................................................................................................................... 5
9 References ............................................................................................................................................ 5
2 PROJECT DESCRIPTION
This project is a 0.08 acre residential parcel located at 2680 Ocean Street in the City of Carlsbad. Ocean
Street is a public street that connects with Cypress Avenue to the north and Beech Avenue to the south.
An existing single family residence and detached garage are currently onsite. Proposed improvements
consist of a single-family detached dwelling unit, driveway, and replacement retaining wall along the
rear property line. The site's APN number is 203-141-10-00. The legal description is Lot 84 of Map 2037.
A Vicinity Map is in the attachments.
2.1 EXISTING CONDITION
The existing site has a single-family residence, detached garage and driveway at an average elevation of
44 feet above Mean Sea Level (MSL). The elevation of the street fronting the property is slightly lower at
42 MSL. There is a 6 foot high retain wall along the rear property line. To each side of the project are
single family residences essentially at the same elevation. To the rear is a parking lot for a condominium
project 4 feet higher than the project's rear yard.
Storm water from the site surface flows to the street, continues on the surface north along the east side
of Ocean Street and on to an inlet 150 feet away. From there the water is conveyed to the Pacific Ocean
in an underground conduit.
2
2.2 PROPOSED CONDITION
The proposed project proposes to demolish the existing residence, garage, rear wall, fences and
hardscape and replacing them. The improvements and grading will disturb 3,920 square feet. The new
drainage pattern is virtually the same as the existing drainage pattern. There is a high point in the rear
yard; storm flows around both sides of the house and joins at the street. Flows then continue on the
surface to the existing inlet mentioned above.
2.3 SOIL CHARACTERISTICS
The following soil group definitions come from Technical Release 55 (TR-55) by the United States
Department of Agriculture:
Group A soils have low runoff potential and high infiltration rates even when thoroughly wetted. They
consist chiefly of deep, well to excessively drained sand or gravel and have a high rate of water
transmission (greater than 0.30 in/hr).
Group B soils have moderate infiltration rates when thoroughly wetted and consist chiefly of moderately
deep to deep, moderately well to well drained soils with moderately fine to moderately course textures.
These soils have a moderate rate of water transmission (0.15-0.30 in/hr).
Group C soils have low infiltration rates when thoroughly wetted and consist chiefly of soils with a layer
that impedes downward movement of water and soils with moderately fine to fine texture. These soils
have a low rate of water transmission (0.05-0.15 in/hr).
Group D soils have high runoff potential. They have very low infiltration rates when thoroughly wetted
and consist chiefly of clay soils with a high swelling potential, soils with a permanent high water table,
soils with a clay pan or clay layer at or near the surface, and shallow soils over nearly impervious
material. These soils have a very low rate of water transmission (0-0.05 in/hr).
The conservative approach is assuming Group D soils for the site.
3 RATIONAL METHOD DESCRIPTION
The rational method, as described in the 2003 San Diego County Hydrology Manual, was used to
generate surface runoff flows, which were then used to size the drainage facilities.
The basic equation: Q = CiA
C = runoff coefficient (varies with land use)
i = Intensity (in/hr)
A= Area (acres)
The 6 hour and 24 hour rainfall isopluvial maps are found in the 2003 San Diego County Hydrology
Manual. Adjusted P6 calculations can be found in the Attachments. Initial travel time calculations (T1) are
based on the overland flow equation given in Figure 3-3 of the County's Hydrology Manual and is limited
to the maximum overland flow length in Table 3-2 of the County's Hydrology Manual.
3
'
4 HYDROLOGY ANALYSIS
This project has a total disturbed area of 3,920 square feet (the area within the daylight line). The
existing condition has 2,791 square feet of impervious surface within that area. The proposed condition
has 2,783 square feet of impervious surface within that area. This results 1n a value of 71% of
impervious area for both the existing and proposed conditions (2, 791/3,920 or 2, 783/3,920 = 0.71, or
71%).
A Runoff Coefficient for the project is established by using the following formula from page 3-5 of the
County Hydrology Manual:
C=0.90 x (%Impervious)+ Cp x (1 -% Impervious)
Where: Cp = 0.35, the runoff coefficient for 0% Impervious with type D Soils (worst cast) from Table 3-1
of the Manual.
C= 0.90(0.71) + 0.35(1-0.71) = 0.74
From the County Rainfall lsopluvials P6 is 2.5 and P24 is 4.2. The adjusted value for P6 remains 2.5.
From Figure 3-1 the resultant rainfall at 5 minutes (the minimum and worst case) is 6.5 inches per hour.
Per the equation in Section 3, Q=CiA, Q=(0.74)(6.5)(3,920/43,560) = 0.43 cubic feet per second for both
the existing and proposed condition.
5 WATER QUALITY
This project is a Standard Development Project per the completed Storm Water Standards
Questionnaire (E-34) provided in the attachments. This project is therefore not required to submit a
Storm Water Quality Management Plan (SWQMP).
6 HYDROMODIFICATION
This project is exempt from Hydromodification requirements since it is not a Priority Development
Project.
7 CONCLUSION
The existing condition discharges 0.43 cubic feet per second of storm water at the western most corner
of the property on the east side of Ocean Street. From there is flows on the surface 150 feet to the
northwest to an inlet and on to the Pacific Ocean in an underground conduit.
The proposed condition discharges 0.43 cubic feet per second of storm water at the western most
corner of the property on the east side of Ocean Street. From there it flows on the surface 150 feet to
the northwest to an inlet and on to the Pacific Ocean in an underground conduit.
4
8 ATTACHMENTS
Includes:
1. Vicinity Map
2. Existing Drainage Map
3. Proposed Drainage Map
4. Table 3-1, Runoff Coefficients for Urban Areas
5. 100 Year 6 Hour lsopluvial
6. 100 Year 24 Hour lsopluvial
7. Figure 3-1, Intensity-Duration Design Chart
8. E-34, Storm Water Standards Questionnaire
9. E-36, Standard Project Requirement Checklist
9 REFERENCES
1. City of Carlsbad Engineering Design Manual by the City of Carlsbad
2. San Diego County Drainage Design Manual by the County of San Diego, May 2005.
3. San Diego County Hydrology Manual by the County of San Diego, June 2003.
4. Urban Hydrology for Small Watersheds TR-55 by the United States Department of Agriculture,
June 1986.
5. low Impact Development Handbook by the County of San Diego, December 31, 2007.
6. Water Quality Control Plan for the San Diego Basin by the California Regional Water Quality
Control Board San Diego Region, April 25, 2007.
7. Stormwoter Best Management Practice Handbook by California Stormwater Quality Association,
September 30, 2004.
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Date: June 2003
Table 3-1
Section:
Page:
RUNOFF COEFFICIENTS FOR URBAN AREAS
Land Use I Runoff Coefficient "C"
Soil Tl'.ee
NRCS Elements Coun Elements % IMPER. A B
Undisturbed Natural Terrain (Natural) Permanent Open Space O* 0.20 0.25
Low Density Residential (LOR) Residential, 1.0 DU/A or less 10 0.27 0.32
Low Density Residential (LDR) Residential, 2.0 DU/ A or less 20 0.34 0.38
Low Density Residential (LOR) Residential, 2.9 DU/A or less 25 0.38 0.41
Medium Density Residential (MDR) Residential, 4.3 DU/ A or less 30 0.41 0.45
Medium Density Residential (MOR) Residential, 7.3 DU/A or less 40 0.48 0.51
Medium Density Residential (MDR) Residential, 10.9 DU/A or less 45 0.52 0.54
Medium Density Residential (MDR) Residential, 14.5 DU/A or less 50 0.55 0.58
High Density Residential (HOR) Residential, 24.0 DU/ A or less 65 0.66 0.67
High Density Residential (HOR) Residential, 43.0 DU/A or less 80 0.76 0.77
Commercial/Industrial (N. Com) Neighborhood Commercial 80 0.76 0.77
Commercial/Industrial (G. Com) General Commercial 85 0.80 0.80
Commercial/Industrial (O.P. Com) Office Professional/Commercial 90 0.83 0.84
Commercial/Industrial (Limited I.) Limited Industrial 90 0.83 0.84
Commercial/Industrial (General I.) General Industrial 95 0.87 0.87
C
0.30
0.36
0.42
0.45
0.48
0.54
0.57
0.60
0.69
0.78
0.78
0.81
0.84
0.84
0.87
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0.41
0.46
0.49
0.52
0.57
0.60
0.63
0.71
0.79
0.79
0.82
0.85
0.85
0.87
*The values associated with 0% impervious may be used for direct calculation of the runoff coefficient as described in Section 3.1.2 (representing the pervious runoff
coefficient, Cp, for the soil type), or for areas that will remain undisturbed in perpetuity. Justification must be given that the area will remain natural forever (e.g., the area
is located in Cleveland National Forest).
DU/ A = dwelling units per acre
NRCS = National Resources Conservation Service
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3-1
( City of
Carlsbad
STORM WATER STANDARDS
QUESTIONNAIRE
Development Services
land Development Engineering
1635 Faraday Avenue
(760) 602-2750
www.carlsbadca.gov
E-34
I INSTRUCTIONS:
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 (BMPs) into the project design per Carlsbad BMP Design Manual (BMP Manual). To view the BMP Manual,
refer to the Engineering Standards (Volume 5).
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 PROJECT' requirements or be subject to 'PRIORITY
DEVELOPMENT PROJECT' (PDP) requirements.
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 completed and signed questionnaire must be submitted with each development project application. Only one
completed and signed questionnaire is required when multiple development applications for the same project are
submitted concurrently.
PROJECT INFORMATION
PROJECT NAME: Shafran Ocean Street Residence PROJECT ID:
ADDRESS: 2680 Ocean Street, Carlsbad, CA 92008 APN: 203-141-10-00
The project is (check one): D New Development Ill Redevelopment
The total proposed disturbed area is: 3,920 ft2 ( 0 09 ) acres
The total proposed newly created and/or replaced impervious area is: 3,333 ft2 ( 0.0765 ) acres
If your project is covered by an approved SWQMP as part of a larger development project, provide the project ID and the
SWQMP # of the larger development project:
Project ID N/A SWQMP#: NIA
Then, go to Step 1 and follow the instructions. When completed, sign the form at the end and submit this with your
application to the city.
E-34 Page 1 of 4 REV 02/16
STEP 1
TO BE COMPLETED FOR ALL PROJECTS
To determine if your project is a "development project", please answer the following question:
YES NO
Is your project LIMITED TO routine maintenance activity and/or repair/improvements to an existing building
or structure that do not alter the size (See Section 1.3 of the BMP Design Manual for guidance)? □ Ill
If you answered "yes" to the above question, provide justification below then go to Step 5, mark the third box stating "my
project is not a 'development project' and not subject to the requirements of the BMP manual" and complete applicant
information.
Justification/discussion: (e.g. the project includes only interior remodels within an existing building):
If you answered "no" to the above Question, the oroiect is a 'development project', go to Step 2.
STEP2
TO BE COMPLETED FOR ALL DEVELOPMENT PROJECTS
To determine if your project is exempt from PDP requirements pursuant to MS4 Permit Provision E.3.b.(3), please answer
the following questions:
Is your project LIMITED to one or more of the following:
YES NO
1. Constructing new or retrofitting paved sidewalks, bicycle lanes or trails that meet the following criteria:
a) Designed and constructed to direct storm water runoff to adjacent vegetated areas, or other non-
erodible permeable areas; □ Ill b) Designed and constructed to be hydraulically disconnected from paved streets or roads;
c) Designed and constructed with permeable pavements or surfaces in accordance with USEPA
Green Streets QUidance?
2. Retrofitting or redeveloping existing paved alleys, streets, or roads that are designed and constructed in □ [l]
accordance with the USEPA Green Streets guidance?
3. Ground Mounted Solar Array that meets the criteria provided in section 1.4.2 of the BMP manual? □ Ill
If you answered "yes" to one or more of the above questions, provide discussion/justification below, then go to Step 5, mark
the second box stating "my project is EXEMPT from PDP ... " and complete applicant information.
Discussion to justify exemption ( e.g. the project redeveloping existing road designed and constructed in accordance with
the USEPA Green Street guidance):
If you answered "no" to the above auestions, vour project is not exempt from PDP, ao to Step 3.
E-34 Page 2 of 4 REV 02/16
STEP3
TO BE COMPLETED FOR ALL NEW OR REDEVELOPMENT PROJECTS
To determine if your project is a PDP, please answer the following questions (MS4 Permit Provision E.3.b.(1)):
YES NO
1. Is your project a new development that creates 10,000 square feet or more of impervious surfaces
collectively over the entire project site? This includes commercial, industrial, residential, mixed-use, □ Ill
and public development projects on public or private land.
2. Is your project a redevelopment project creating and/or replacing 5,000 square feet or more of
impervious surface collectively over the entire project site on an existing site of 10,000 square feet or □ Ill more of impervious surface? This includes commercial, industrial, residential, mixed-use, and public
development projects on public or orivate land.
3. Is your project a new or redevelopment project that creates and/or replaces 5,000 square feet or more
of impervious surface collectively over the entire project site and supports a restaurant? A restaurant is
a facility that sells prepared foods and drinks for consumption, including stationary lunch counters and □ Ill
refreshment stands selling prepared foods and drinks for immediate consumption (Standard Industrial
Classification (SIC) code 5812).
4. Is your project a new or redevelopment project that creates 5,000 square feet or more of impervious
surface collectively over the entire project site and supports a hillside development project? A hillside □ [l]
development proiect includes development on any natural slope that is twentv-five percent or areater.
5. Is your project a new or redevelopment project that creates and/or replaces 5,000 square feet or more
of impervious surface collectively over the entire project site and supports a parking lot? A parking lot is □ Ill a land area or facility for the temporary parking or storage of motor vehicles used personally for
business or for commerce.
6. Is your project a new or redevelopment project that creates and/or replaces 5,000 square feet or more
of impervious surface collectively over the entire project site and supports a street, road, highway □ Ill freeway or driveway? A street, road, highway, freeway or driveway is any paved impervious surface
used for the transportation of automobiles, trucks, motorcycles, and other vehicles.
7. Is your project a new or redevelopment project that creates and/or replaces 2,500 square feet or more
of impervious surface collectively over the entire site, and discharges directly to an Environmentally
Sensitive Area (ESA)? "Discharging Directly to" includes flow that is conveyed overland a distance of □ [l]
200 feet or less from the project to the ESA, or conveyed in a pipe or open channel any distance as an
isolated flow from the oroiect to the ESA (i.e. not commingled with flows from adiacent lands).*
8. Is your project a new development or redevelopment project that creates and/or replaces 5,000 square
feet or more of impervious surface that supports an automotive repair shop? An automotive repair □ [l] shop is a facility that is categorized in any one of the following Standard Industrial Classification (SIC)
codes: 5013, 5014, 5541, 7532-7534, or 7536-7539.
9. Is your project a new development or redevelopment project that creates and/or replaces 5,000 square
feet or more of impervious area that supports a retail gasoline outlet (RGO)? This category includes □ Ill RGO's that meet the following criteria: (a) 5,000 square feet or more or (b) a project Average Daily
Traffic (ADT) of 100 or more vehicles oerdav.
1 O. Is your project a new or redevelopment project that results in the disturbance of one or more acres of land □ [l] and are expected to generate pollutants post construction?
11. Is your project located within 200 feet of the Pacific Ocean and (1) creates 2,500 square feet or more of
impervious surface or (2) increases impervious surface on the property by more than 10%? (CMC □ [l]
21 .203.040)
If you answered "yes" to one or more of the above questions, your project is a PDP. If your project is a redevelopment
project, go to step 4. If your project is a new project, go to step 5, check the first box stating "My project is a PDP ... "
and complete applicant information.
If you answered "no" to all of the above questions, your project is a 'STANDARD PROJECT.' Go to step 5, check the
second box statini:i "My project is a 'STANDARD PROJECT' ... " and complete applicant information.
E-34 Page 3 of 4 REV 02/16
STEP4
TO BE COMPLETED FOR REDEVELOPMENT PROJECTS THAT ARE PRIORITY DEVELOPMENT PROJECTS (PDP)
ONLY
Complete the questions below regarding your redevelopment project (MS4 Pemiit Provision E.3.b.(2)):
YES NO
Does the redevelopment project result in the creation or replacement of impervious surface in an amount
of less than 50% of the surface area of the previously existing development? Complete the percent
impervious calculation below:
Existing impervious area (A) = sq. ft. □ □
Total proposed newly created or replaced impervious area (8) = sq. ft.
Percent impervious area created or replaced (B/A)*100 = %
If you answered "yes", the structural BMPs required for PDP apply only to the creation or replacement of impervious
surface and not the entire development. Go to step 5, check the first box stating "My project is a PDP ... " and complete
applicant infom,ation.
If you answered "no," the structural BM P's required for PDP apply to the entire development. Go to step 5, check the
check the first box statino "Mv proiect is a PDP ... " and complete aoolicant information.
STEPS
CHECK THE APPROPRIATE BOX AND COMPLETE APPLICANT INFORMATION
D My project is a PDP and must comply with PDP stormwater requirements of the BMP Manual. I understand I must
prepare a Storm Water Quality Management Plan (SWQMP) for submittal at time of application.
Ill My project is a 'STANDARD PROJECT' OR EXEMPT from PDP and must only comply with 'STANDARD PROJECT'
stormwater requirements of the BMP Manual. As part of these requirements, I will submit a "Standard Project
Requirement Checklist Form E-36" and incorporate low impact development strategies throughout my project.
Note: For projects that are close to meeting the PDP threshold, staff may require detailed impervious area calculations
and exhibits to verify if 'STANDARD PROJECT' stormwater requirements apply.
D My Project is NOT a 'development project' and is not subject to the requirements of the BMP Manual.
Applicant Information and Signature Box
APN 203-141-10-00
Applicant Name: Ayal Shafran Applicant Title: Owner
Applicant Signature: Date:
.. .. • Environmentally Sens1t1ve Areas include but are not hm1ted to all Clean Water Act Section 303(d) 1mpa1red water bodies; areas designated as Areas of Special
Biological Significance by the State Water Resources Control Board (Water Quality Control Plan for the San Diego Basin (1994) and amendments): water bodies
designated with the RARE beneficial use by the State Water Resources Control Board (Water Quality Control Plan for the San Diego Basin (1994) and
amendments); areas designated as preserves or their equivalent under the Multi Species Conservation Program within the Cities and County of San Diego; Habitat
Management Plan; and any other equivalent environmentally sensitive areas which have been identified by the City.
This Box for Citv Use Ontv
YES NO
City Concurrence: □ □
By:
Date:
Project ID:
E-34 Page 4 of 4 REV 02/16
( City of
Carlsbad
STANDARD PROJECT
REQUIREMENT
CHECKLIST
E-36
Project Information
Project Name: Ocean Street Residence
Project ID: CDP 2017-0021
DWG No. or Building Permit No.: DWG 510-6A/GR 2018-0009
Source Control BMPs
Development Services
Land Development Engineering
1635 Faraday Avenue
(760) 602-2750
www .carlsbadca.gov
All development projects must implement source control BMPs SC-1 through SC-6 where applicable and feasible. See
Chapter 4 and Appendix E.1 of the BMP Design Manual (Volume 5 of City Engineering Standards) for information to
implement source control BMPs shown in this checklist.
Answer each category below pursuant to the following.
• "Yes" means the project will implement the source control BMP as described in Chapter 4 and/or Appendix E.1 of the
Model BMP Design Manual. Discussion/justification is not required.
• "No" means the BMP is applicable to the project but it is not feasible to implement. Discussion/justification must be
provided. Please add attachments if more space is needed.
• "N/A" means the BMP is not applicable at the project site because the project does not include the feature that is
addressed by the BMP (e.g., the project has no outdoor materials storage areas). Discussion/justification may be
provided.
Source Control Requirement Applied?
SC-1 Prevention of Illicit Discharges into the MS4 ll]Yes ONo □ N/A
Discussion/justification if SC-1 not implemented:
SC-2 Storm Drain Stenciling or Signage □Yes ONo 111 NIA
Discussion/justification if SC-2 not implemented:
SC-3 Protect Outdoor Materials Storage Areas from Rainfall, Run-On, Runoff, and Wind □Yes □No Ii N/A Dispersal
Discussion/justification if SC-3 not implemented:
E-36 Page 1 of 4 Revised 09/16
Source Control Requirement (continued) Aoolled?
SC-4 Protect Materials Stored in Outdoor Work Areas from Rainfall, Run-On, Runoff, and □Yes □No 11 N/A Wind Dispersal
Discussion/justification if SC-4 not implemented:
SC-5 Protect Trash Storage Areas from Rainfall, Run-On, Runoff, and Wind Dispersal II Yes □No 0 N/A
Discussion/justification if SC-5 not implemented:
SC-6 Additional BMPs based on Potential Sources of Runoff Pollutants must answer for each source listed below and
identify additional BMPs. (See Table in Aooendix E.1 of BMP Manual for Quidance).
D On-site storm drain inlets □Yes □No 111 N/A
□ Interior floor drains and elevator shaft sump pumps □Yes □No 111 N/A
D Interior parking garages □Yes □No 111 N/A
D Need for future indoor & structural pest control Ill Yes ONo 0 N/A
□ Landscape/Outdoor Pesticide Use Ill Yes □No 0 N/A
□ Pools, spas, ponds, decorative fountains, and other water features □Yes □No 111 N/A
D Food service □Yes ONo Iii N/A
D Refuse areas ll]Yes ONo ON/A
D Industrial processes □Yes □No 111 N/A
□ Outdoor storage of equipment or materials □Yes □No Iii N/A
□ Vehicle and Equipment Cleaning □Yes □No Ill N/A
□ Vehicle/Equipment Repair and Maintenance □Yes □No Ill N/A
□ Fuel Dispensing Areas □Yes □No Iii N/A
D Loading Docks □Yes ONo Iii N/A
D Fire Sprinkler Test Water Ill Yes ONo 0 N/A
□ Miscellaneous Drain or Wash Water □Yes □No 111 N/A
□ Plazas, sidewalks, and oarkinq lots Ill Yes □No 0 N/A
For "Yes" answers, identify the additional BMP per Appendix E.1. Provide justification for "No" answers.
Per Numbering in Appendix E .......
D1 : Screen openings to discourage pests, provide info to owners;
D2: Landscape design optimizes pesticide use, provide info to owners;
G: Refuse cans to be covered or stored in garage, repair/replace leaky containers, pick up litter and
clean spills immediately;
N: Drain fire sprinkler test water to sanitary sewer;
P: Walks and driveway to be swept regularly, pressure washing debris to be collected and not sent to
street.
E-36 Page 2 of 4 Revised 09/16
Site Design BMPs
All development projects must implement site design BMPs SD-1 through SD-8 where applicable and feasible. See
Chapter 4 and Appendix E.2 thru E.6 of the BMP Design Manual (Volume 5 of City Engineering Standards) for information
to implement site design BMPs shown in this checklist.
Answer each category below pursuant to the following.
• "Yes" means the project will implement the site design BMPs as described in Chapter 4 and/or Appendix E.2 thru E.6 of
the Model BMP Design Manual. Discussion / justification is not required.
• "No" means the BMPs is applicable to the project but it is not feasible to implement. Discussion/justification must be
provided. Please add attachments if more space is needed.
• "N/A" means the BMPs is not applicable at the project site because the project does not include the feature that is
addressed by the BMPs (e.g., the project site has no existing natural areas to conserve). Discussion/justification may be
provided.
Site Design Requirement I Applied?
SD-1 Maintain Natural DrainaQe Pathways and HvdroloQic Features I □Yes I □ No I Ill N/A
Discussion/justification if SD-1 not implemented:
SD-2 Conserve Natural Areas, Soils, and Vegetation I □Yes I □ No I ~ N/A
Discussion/justification if SD-2 not implemented:
SD-3 Minimize Impervious Area I III Yes I □ No I □ N/A
Discussion/justification if SD-3 not Implemented:
SD-4 Minimize Soil Compaction I IIIYes I □No I □ NIA
Discussion/justification if SD-4 not implemented:
S0-5 Impervious Area Dispersion I III Yes I □ No I □ N/A
Discussion/justification if SD-5 not implemented:
E-36 Page 3of4 Revised 09/16
Site Deslan Reaulrement (continued) I Annlled?
SD-6 Runoff Collection I □Yes l Ill No I D N/A
Discussion/justification if SD-6 not implemented:
Sufficient room for storage tanks is not available
SD-7 Landscaoina with Native or Drouaht Tolerant Species I III Yes I D No I D NIA
Discussion/justification If SD-7 not implemented:
SD-8 Harvestina and Using Precioitation I D Yes I III No I D N/A
Discussion/justification if SD-8 not implemented:
Sufficient room for storage tanks is not available
E-36 Page 4 of 4 Revised 09/16