HomeMy WebLinkAboutStreet Improvements Special Projects Worksheet
Project Name: East Campbell Avenue
Project Address 540-566 East Campbell Avenue
Applicant/Developer Name: Cresleigh Homes
1. "Special Project" Determination:
Special Project Category "A"
Does the project have ALL of the following characteristics?
❑ Located in a municipality's designated central business district, downtown core area or
downtown core zoning district, neighborhood business district or comparable
pedestrian-oriented commercial district, or historic preservation site and/or district';
❑ Creates and/or replaces 0.5 acres or less of impervious surface;
❑ Includes no surface parking, except for incidental parking for emergency vehicle
access, ADA access, and passenger or freight loading zones;
❑ Has at least 85%coverage of the entire site by permanent structures. The remaining
15% portion of the site may be used for safety access, parking structure entrances,
trash and recycling service, utility access, pedestrian connections, public uses,
landscaping and stormwater treatment.
❑ No (continue) O Yes— complete Section 2 of the Special Project Worksheet
Special Project Category "B"
Does the project have ALL of the following characteristics?
❑ Located in a municipality's designated central business district, downtown core area or
downtown core zoning district, neighborhood business district or comparable
pedestrian-oriented commercial district, or historic preservation site and/or district';
❑ Creates and/or replaces an area of impervious surface that is greater than 0.5 acres,
and no more than 2.0 acres;
❑ Includes no surface parking, except for incidental parking for emergency access, ADA
access, and passenger or freight loading zones;
❑ Has at least 85%coverage of the entire site by permanent structures. The remaining
15% portion of the site may be used for safety access, parking structure entrances,
trash and recycling service, utility access, pedestrian connections, public uses,
landscaping and stormwater treatment;
❑ Minimum density of either 50 dwelling units per acre (for residential projects) or a Floor
Area Ratio (FAR) of 2:1 (for commercial or mixed use projects)
❑ No (continue) ❑ Yes—complete Section 2 of the Special Project Worksheet
Special Project Category "C" 'rQ(tj 911 O(Z,(. (- A alktrAir
Does the project have ALL of the following characteristics?
• At least 50%of the project area is within 1/2 mile of an existing or planned transit hub2
or 100%within a planned Priority Development Area3;
• The project is characterized as a non-auto-related use4; and
• Minimum density of either 25 dwelling units per acre (for residential projects) or a Floor
Area Ratio (FAR) of 2:1 (for commercial or mixed use projects)
❑ No ■ Yes—complete Section 2 of the Special Project Worksheet
Pec b,ctix J7
And built as part of a municipality's stated objective to preserve/enhance a pedestrian-oriented type of urban design.
2"Transit hub"is defined as a rail,light rail,or commuter rail station,ferry terminal,or bus transfer station served by three or more
bus routes. (A bus stop with no supporting services does not qualify.)
3 A"planned Priority Development Area"is an infill development area formally designated by the Association of Bay Area
Government's/Metropolitan Transportation Commission's FOCUS regional planning program.
4 Category C specifically excludes stand-alone surface parking lots;car dealerships;auto and truck rental facilities with onsite
surface storage;fast-food restaurants,banks or pharmacies with drive-through lanes;gas stations;car washes;auto repair and
service facilities;or other auto-related project unrelated to the concept of transit oriented development.
11NPp 1 Final November 2011
Special Projects Worksheet
ill?6****'
2. LID Treatment Reduction Credit Calculation:
[Transit Oriented Development(TOD)]
Category Impervious Area Site Project Density/Criteria Allowable Applied
Created/Replaced Coverage Density Credit Credit
(acres) (0/0) or FAR (0/o) (0/0)
A N.A. N.A. 100%
B Res≥ 50 DU/ac or FAR≥2:1 50%
Res≥ 75 DU/ac or FAR≥3:1 75%
Res≥ 100 DU/ac or FAR≥4:1 100%
C 1.1 acres Location credit(select one)5:
Within 1/4 mile of transit hub 50% 50%
Within 1/2 mile of transit hub 25%
Within a planned PDA 25%
Density credit(select one):
Res≥ 30 DU/ac or FAR≥2:1 10% 10%
Res≥ 60 DU/ac or FAR≥4:1 20%
Res≥ 100 DU/ac or FAR≥6:1 30%
Parking credit(select one):
≥ 10%at-grade surface parking6 10%
No surface parking 20% 20%
TOTAL TOD CREDIT= 80%
5 To qualify for the location credit,at least 50%of the project's site must be located within the 1/4 mile or 1/2 mile radius of an existing
or planned transit hub,as defined on page 1,footnote 2.A planned transit hub is a station on the MTC's Regional Transit Expansion
Program list,per MTC's Resolution 3434(revised April 2006),which is a regional priority funding plan for future transit stations in the
San Francisco Bay Area.To qualify for the PDA location credit, 100%of the project site must be located within a PDA,as defined on
page 1,footnote 3.
The at-grade surface parking must be treated with LID treatment measures.
2 Final November 2011
Santa Clara Valley
Urban Runoff
Pollution Prevention Program
PROVISION C.3 DATA FORM
Which Projects Must Comply with Stormwater Requirements?
All projects that create and/or replace 10,000 sq.ft. or more of impervious surface on the project site must
fill out this worksheet and submit it with the development project application.
All restaurants,auto service facilities,retail gasoline outlets,and uncovered parking lot projects
(stand-alone or part of another development project, including the top uncovered portion of parking
structures)that create and/or replace 5,000 sq.ft.or more of impervious surface on the project site must also
fill out this worksheet.
Interior remodeling projects,routine maintenance or repair projects such as re-roofing and re-paving, and
single family homes that are not part of a larger plan of development are NOT required to complete this
worksheet.
What is an Impervious Surface?
An impervious surface is a surface covering or pavement that prevents the land's natural ability to absorb and
infiltrate rainfall/stormwater. Impervious surfaces include,but are not limited to rooftops,walkways,paved
patios, driveways,parking lots, storage areas,impervious concrete and asphalt, and any other continuous
watertight pavement or covering. Pervious pavement, underlain with pervious soil or pervious storage
material(e.g., drain rock),that infiltrates rainfall at a rate equal to or greater than surrounding unpaved areas
OR that stores and infiltrates the water quality design volume specified in Provision C.3.d of the Municipal
Regional Stormwater Permit(MRP),is not considered an impervious surface.
For More Information
For more information regarding selection of Best Management Practices for stormwater pollution prevention
or stormwater treatment contact:
1. Project Information APN 412-09-027, -028, -
Project Name: East Campbell Avenue APN # 029, -030, -031
Project Address: 540-566 East Campbell Avenue
Cross Streets: Gilman Avenue, Dillon Avenue, Page Street
Applicant/Developer Name: Cresleigh Homes
Project Phase(s): 1 of 1 Engineer: Civil Engineering Associates, Shane Adrian PE
Project Type (Check all that apply): El New Development ❑ Redevelopment
❑ Residential O Commercial O Industrial ■ Mixed Use ❑ Public O Institutional
❑ Restaurant O Uncovered Parking O Retail Gas Outlet O Auto Service (SIC code)
(5013-5014,5541,7532-7534,7536-7539)
O Other
Project Description: 59 unit apartment complex. Includes 50 parking spaces along with 3
retail spaces on the ground floor. New sidewalk and landscape along project frontage.
Site qualifies for 80% treatment credit, but treats 33% of runoff through LID.
Project Watershed/Receiving Water(creek, river or bay):
SCVURPPP C.3.Data Form Page 1 of 4 November 2011
2. Project Size
a.Total Site Area: b.Total Site Area Disturbed: 1 acre
1 acre (including clearing,grading,or excavating)
z Proposed Area(ft�) Total Post-Project
Existing Area(ft 2)
Replaced I New Area(ftz)
Impervious Area
Roof 14,454 14,454 20,360 34,814
Parking 5,236 N/A N/A N/A
Sidewalks and Streets 1,235 1,235 6,501 7,736
c.Total Impervious Area 20,925 15,689 26,861 42,550
d.Total new and replaced impervious area 42,550
Pervious Area
Landscaping 22,557 352 N/A 352
Pervious Paving N/A N/A N/A N/A
Other(e.g.Green Roof) N/A N/A 581 581
e.Total Pervious Area 22,557 352 581 933
f.Percent Replacement of Impervious Area in Redevelopment Projects (Replaced Total Impervious Area
Existing Total Impervious Area) x 100% = 75 %
3. State Construction General Permit Applicability:
a. Is#2.b. equal to 1 acre or more?
® Yes, applicant must obtain coverage under the State Construction General Permit (i.e.,
file a Notice of Intent and prepare a Stormwater Pollution Prevention Plan) (see
www.swrcb.ca.gov/water issues/programs/stormwater/construction.shtml for details).
❑ No, applicant does not need coverage under the State Construction General Permit.
4. MRP Provision C.3 Applicability:
a. Is#2.d. equal to 10,000 sq. ft. or more, or 5,000 sq. ft. or more for restaurants, auto service
facilities, retail gas outlets, and uncovered parking?
(*Note that for public projects, the 5,000 sq.ft. threshold does not take effect until 12/1/12.)
• Yes, C.3. source control, site design and treatment requirements apply
❑ No, C.3. source control and site design requirements may apply—check with local agency
b. Is#2.f. equal to 50%or more?
® Yes, C.3.requirements (site design and source control, as appropriate, and stormwater
treatment) apply to entire site
O No, C.3. requirements only apply to impervious area created and/or replaced
5. Hydromodification Management(HM)Applicability:
a. Does project create and/or replace one acre or more of impervious surface AND is the total
post-project impervious area greater than the pre-project (existing) impervious area?
® Yes (continue) 0 No—exempt from HM, go to page 3
b. Is the project located in an area of HM applicability(green area) on the HM
Applicability Map?( www.scvurppp-w2k.com/hmp maps.htm )
O Yes, project must implement HM requirements
I No,project is exempt from HM requirements
SCVURPPP C.3.Data Form Page 2 of 4 November 2011
6. Selection of Specific Stormwater Control Measures:
Site Design Measures Source Control Measures Treatment Systems
■ Minimize land disturbed ❑ Alternative building ❑ None (all impervious surface
materials drains to self-retaining areas)
❑ Minimize impervious
surfaces ❑ Wash area/racks, drain to LID Treatment
■ Minimum-impact street sanitary sewer2 ❑ Rainwater harvest and
or parking lot design • Covered dumpster area, use (e.g.,cistern or rain barrel
■ Cluster structures/
drain to sanitary sewer2 sized for C.3.d treatment)
pavement ❑ Sanitary sewer ❑ Infiltration basin
connection or accessible ❑ Infiltration trench
❑ Disconnected downspouts
cleanout for swimming
Exfiltration trench
❑ Pervious pavement pool/spa/fountain2
r0 Underground detention
❑ Green roof ❑ Beneficial landscaping
(minimize irrigation,runoff, and infiltration system
❑ Microdetention in pesticides and fertilizers; (e.g.pervious pavement drain
landscape promotes treatment) rock,large diameter conduit)
❑ Other self-treating area ❑ Outdoor material storage Biotreatment 3
❑ Self-retaining area protection ❑ Bioretention area
❑ Rainwater harvesting and ❑ Covers, drains for loading ■ Flow-through planter
use (e.g., barrel,cistern docks, maintenance bays,
g ❑ Tree box with
connected to roof drains)1 fueling areas
bioretention soils
❑ Preserved open space: • Maintenance (pavement ❑ Other
ac. or sq. ft sweeping,catch basin
(circle one) cleaning,good housekeeping)
❑ Protected riparian and • Storm drain labeling Other Treatment Methods
wetland areas/buffers ❑ Proprietary tree box filter4
(Setback from top of bank: ❑ Other
❑ Media filter(sand,compost,
ft.)
or proprietary media)
4
❑ Other O Vegetated filter strips
❑ Dry detention basins
❑ Other
Flow Duration Controls for Hydromodification Management (HM)
❑ Detention basin ❑ Underground ❑ Bioretention with outlet ❑ Other
tank or vault control
Optional site design measure;does not have to be sized to comply with Provision C.3.d treatment requirements.
2 Subject to sanitary sewer authority requirements.
3 Biotreatment measures are allowed only with completed feasibility analysis showing that infiltration and rainwater
harvest and use are infeasible.
°These treatment measures are only allowed if the project qualifies as a"Special Project".
5 These treatment measures are only allowed as part of a multi-step treatment process.
SCVURPPP C.3.Data Form Page 3 of 4 November 2011
7. Treatment System Sizing for Projects with Treatment Requirements
Indicate the hydraulic sizing criteria used and provide the calculated design flow or volume:
Treatment System Component Hydraulic Sizing Design Flow or
Criteria Used3 Volume
(cfs or cu.ft.)
Biotreatment Planters 4% Rule 581 SF
3Key: la: Volume—WEF Method
lb: Volume—CASQA BMP Handbook Method
2a: Flow—Factored Flood Flow Method
2b: Flow—CASQA BMP Handbook Method
2c: Flow—Uniform Intensity Method
3: Combination Flow and Volume Design Basis
8. Alternative Certification: Was the treatment system sizing and design reviewed by a qualified third-
party professional that is not a member of the project team or agency staff?
O Yes ❑ No Name of Reviewer
9. Operation & Maintenance Information
A. Property Owner's Name Cresleigh Homes
B. Responsible Party for Stormwater Treatment/Hydromodification Control O&M:
a. Name: Cresleigh Homes
b. Address: 3005 Douglas Blvd., Suite 110
c. Phone/E-mail: 916-781-6020
This section to be completed by Municipal staff.
O&M Responsibility Mechanism
Indicate how responsibility for O&M is assured. Check all that apply:
❑ O&M Agreement
❑ Other mechanism that assigns responsibility(describe below):
Reviewed:
Community Development Department Public Works Department
Planning Division: Engineering:
Building Division: Other(Specify):
Return form to: Data entry performed by:
SCVURPPP C.3.Data Form Page 4 of 4 November 2011