EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 20860 McClellan Road Project
No
No
No
No
School Trip
Commute
Commute
Commute
Commute
0.00 0.00
0.00 0.00
2.00 Implement School Bus Program
Commute Subtotal
Provide Ride Sharing Program
Employee Vanpool/Shuttle
Market Commute Trip Reduction Option
0.00 Total VMT Reduction
Area Mitigation
Measure Implemented
No
No
No
No
No
No
No
No
No
No
Mitigation Measure
No Hearth
% Electric Chainsaw
% Electric Leafblower
% Electric Lawnmower
Use Low VOC Paint (Non-residential Exterior)
Use Low VOC Paint (Non-residential Interior)
Use Low VOC Paint (Residential Exterior)
Use Low VOC Paint (Residential Interior)
Use Low VOC Cleaning Supplies
Only Natural Gas Hearth
Input Value
150.00
100.00
150.00
100.00
Energy Mitigation Measures
No
Use Low VOC Paint (Parking)
150.00
CalEEMod Version: CalEEMod.2020.4.0
Date: 11/10/2021 11:32 AM
EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 20860 McClellan Road Project
Measure Implemented
No
No
No
Mitigation Measure
Install High Efficiency Lighting
On-site Renewable
Exceed Title 24
Input Value 1
Input Value 2
Appliance Type
Land Use Subtype
% Improvement
ClothWasher
30.00 DishWasher
15.00 Fan
50.00 Refrigerator
15.00 Water Mitigation Measures
Measure Implemented
No
No
Yes
Mitigation Measure
Use Reclaimed Water
Use Grey Water
Apply Water Conservation on Strategy
Input Value 1
0.00 0.00
0.00 20.00
0.00 Input Value 2
No
No
No
No
Install low-flow bathroom faucet
Install low-flow Toilet
Install low-flow Shower
Install low-flow Kitchen faucet
32.00 18.00
20.00 20.00
No
No
Turf Reduction
Use Water Efficient Irrigation Systems
0.00 6.10
CalEEMod Version: CalEEMod.2020.4.0
Date: 11/10/2021 11:32 AM
EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 20860 McClellan Road Project
Solid Waste Mitigation
Mitigation Measures
Institute Recycling and Composting Services
Percent Reduction in Waste Disposed
Input Value
No
Water Efficient Landscape
0.00 0.00
CalEEMod Version: CalEEMod.2020.4.0
Date: 11/10/2021 11:32 AM
EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied 20860 McClellan Road Project
Appendix C
Preliminary Stormwater Analysis
MH engineering Co.
Page | 1
16075 Vineyard Blvd.
Morgan Hill, CA 95037
(408) 779-7381
(408) 226-5712 Fax
Preliminary Stormwater Analysis
20860 McClellan Road
6 lot Single Family Residential Development
(APN 359-20-030)
Cherryland Drive
MHE 221047
August 05, 2021
Attachments:
/circle4 C.3 Impervious Surface Data Form
/circle4 Alternate Bio-retention basin sizing calculation /circle4 Infiltration Feasibility Screening Worksheets
/circle4 Preliminary Grading , Drainage & Storm Water Management Plans (24x36)
MH engineering Co.
Page | 2
Project Description:
This 1.25 acre parcel with two homes and a 215’x47’ barn is located at the southwest corner of McClellan Road and Cherryland Drive. Site currently lays in the southeasterly direction with average slopes under 1.5%. Project has proposed to develop 6 single family detached homes with driveway access off Cherryland Drive. This street will be widened to the ultimate 40 feet curb to curb width to include parking along the existing and proposed frontages.
Property drains to Calabazas Creek, waters of San Francisco Bay, lies within Regional Water Quality Control Board, Region2.
Low Impact Site Design Measures, Source Control Measures & Stormwater Treatment Measures:
Project shall comply with City of Cupertino’s Municipal Code Section 9.18 (stormwater pollution prevention and watershed protection) and applicable subsections of Provisions C.3 of the San Francisco Bay Regional Water Quality Control Board’s Municipal Regional Permit (NPDES Permit) for Low Impact development.
/circle4 The total amount of impervious surface area replaced by the project exceeds 50% of the existing hardscape, therefore C.3 requirements are applicable to all new and replaced impervious surfaces.
/circle4 Project will create less than 1 acre of total impervious area as such hydromodification measures are not required.
Site Design Measures
Following design measures are incorporated into the site layout:
/circle4 impervious areas have been limited under the approved zoning /circle4 hardscape is minimized within the scope of project /circle4 grading has been optimized
Source Control Measures:
/circle4 roof runoff is dispersed onto vegetated areas using splash blocks /circle4 permeable pavement shall be used for all onsite driveways /circle4 New widening of fronting Cherryland Drive shall also be C3 compliant permeable pavement to match existing street
/circle4 runoff from private hardscape will be generally directed onto vegetated areas
Stormwater Treatment Measures (SCMs):
Porous pavement has been proposed for the driveways and private street widening. Proposed 5’ sidewalk will drain onto the porous pavement.
Each individual lot will have its own independent bio-retention basin. Roof and yard drainage will filter through landscaped areas to provide storm water pre-treatment before conveyance of that runoff is directed into the basins.
Bio-retention basins have been sized per criteria listed in the C.3 Stormwater Handbook, Section 6.1 Bio-Retention Area design and sizing guidelines. Sizing is based on the 4% sizing factor derived from the flow based treatment standard of ‘runoff from 0.20 in/hr intensity rainfall. Typical basin shall have a maximum ponding depth of 9 inches with 24” soil media backfill placed over 18” drain rock bed.
MH engineering Co.
Page | 3
Project Soils study, dated Jan 19, 2021 (updated June 2021), relevant pages 1 and 8 are copied and pasted below indicate ‘Ksat’ for native soils at 3.0 in/hr across the site. This rate will allow the C.3 volume to infiltrate into native soil under 48 hours.
An alternate calculation has also been provided to demonstrate that C.3 volume within the basins shall fully dissipate though percolation. This calculation sample is taken from the Cherryland development using 10 year rainfall intensity of 0.70 in for one hour duration. Cherryland calculations have incorrectly used a pervious area runoff coeff of 0.30 to size the basin. However, we have computed the composite ‘C’ value around 0.60.
Based on the 4% rule basin sizing is as follows:
Lot 1 10’x18’x0.75’ (ponding depth)
Lot 2-4 10’x16.5’x0.75’
Lot 5 10’x17.5’x0.75’
Lot 6 8’x24’x0.75’
Hydro-modification/Peak Management:
Project will create less than 1 acre of impervious surface, therefore peak management per City criteria is not required.
SCM Layout Details and System Functionality:
All SCMs are to be installed on private properties, which shall be owned and maintained by the individual homeowners.
MH engineering Co.
Page | 4
Infiltration Rates per Geotechnical Study:
MH engineering Co.
Page | 5
Surface Area
Required
(4% of 'IA'
Rule)
Surface
Area
Proposed
1 7,769 3,611 178 180 9 378 3.00 51 17.0
2 6,735 2,870 164 165 9 347 3.00 51 17.0
3 6,720 2,867 164 165 9 347 3.00 51 17.0
4 6,739 2,774 164 165 9 347 3.00 51 17.0
5 7,467 3,197 175 175 9 368 3.00 51 17.0
6 8,730 4,038 191 192 9 403 3.00 51 17.0
Infiltration
duration
(hours)
"McClellan Site" Treatment Control Measure Sizing
Above Ground Vol = Surface Area*Ponding Depth (9"); Below ground Vol=Surface Area*[Soil Media Depth*0.25+Drain Rock Depth*0.40]; Subgrade Vol= Surface Area*Ksat*1/12
Bio-Retention
Mitigation
985
Above
Surface
Ponding
depth
(in)
Total
Vol
Propose
d (cf)
Native
Soil Ksat
(in/hr)
total
ponding
depth
(in)
4,770
Roof & private
Hardscape (sf)
Yard Landscape &
Bio-Retention (sf)
4,440
4,105
4,105
4,105
DMA
530
Onsite
Driveway
Paved with
Pervious
Pavers (sf)
4,376 718
647
560
560
DMA Impervious
Area 'IA' DMA Area
Trib. to
Bio-
Retention
(sf)
L:\Projects\Harry\221047-Alok Ventures, LLC, McClennan Road, Cupertino\Drainage Study\221047 SCM Sizing Calcs.xls 8,581sf7,526 sf7,532 sf7,535 sf9,835sf8,246sf
Cherryland Drive (Existing Private Street)
McClellan Road
Bonny Drive
(E) 25'(E) 10.5'14.5'
Existing PUE, EAE, PIEE, PAE,PSDE & PSSE
(E) 5'LE & PUE
Proposed 5' PUE & LE
Existing PUE, EAE, PIEE, PAE,PSDE & PSSE
Lot 1Lot 2Lot 3Lot 4Lot 5Lot 6
4,987sfLot 7(Proposed PUE, EAE, PIEE,PAE, PSDE & PSSE) Proposed 5' PUE & LE
(S0°00'00"W)(301.76') Held Per R1
S0°02'48"E389.79'
N89°56'35"E139.33'S0°00'00"W389.74'
N89°55'16"E139.01'
N89°59'57"E103.06'
S90°00'00"E115.97'
N90°00'00"W124.68'
S90°00'00"E124.72'
S90°00'00"E124.77'
S0°00'00"W42.35'S69°56'37"W11.50'R = 37.00'Δ = 58°15'43"L = 37.62'R = 37.00'Δ = 10°43'27"L = 6.93'R = 56.00'Δ = 24°36'35"L = 24.05' R = 56.00'Δ = 13°48'13"L = 13.49'R = 15.00'Δ = 33°53'09"L = 8.87'40.64'60.40'60.40'54.19' R = 15.00'Δ = 90°03'25"L = 23.58'
109.82'
N89°56'35"E149.86'
(E)30'StreetDedication
BDM not Found atCherryland DrHeld Record Distance 57.97per R2 Fd BDMheld at 0.17' northper call on R2
M-M 884.93'(885.00' per R2)
BDM per R2SFNF
Fd BDMper R1(S90°00'00"E)(24.00')Per R1
N89°56'35"E602.60'Held Record Distance 602.60'per R1IP per R1SFNF R1----161 M 44R2----885 M 07R3----Deed (Doc24414331)
(132.75')Per R2
Calc 149.86' (150.50' R3)
(884.93')
(N89°56'35"E)McClellan PlaceFd Mon Boxper R2No Punch or ID Stelling RoadFd Mon Boxper R2No ID(N89°56'35"E)
1 2 3 4 5 6 7 8 9 10111213141516171819202122232425262728293031320 1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 0L:\Projects\Harry\221047-Alok Ventures, LLC, McClennan Road, Cupertino\DWG\221047 C1-Tentative Map.dwg - 7/22/2021 2:40 PM - Plotted 7/22/2021 2:40 PM by Harinder Singla JOB NO.
OF 16075 Vineyard BoulevardMorgan Hill, CA 95037DATE:SCALE:DRAWN BY:CHECKED BY:
Xrefs: 221047 LO New; 221047 LO Existing
SHEET221047C15 Tentative Map20860 McClellan RoadJuly 20211"=20'MFHS LICENSED LAND SURVEYORHARINDER SINGLASTATE OF CALIFORNIANo. 8347 North
SCALE: 1"=20'010203040
NOTES:20860 McClellan RoadCupertino, CA 95014Robert M. Carlotto, TrusteeAlok Ventures, LLC725-01-018Single Family ResidentialSingle Family ResidentialR1-10 Zoning DistrictR1-7.5 Zoining DistrictCupertino Sanitary DistrictCity of CupertinoSan Jose Water Co.As Shown54,244sf (1.245ac)None4,987sf49,257sf Street Address:Owner:Subdivider:Assessor's Parcel No:Existing Use:Proposed Use:Present Zoning:Proposed Zoning:Sewage Disposal:Storm Drainage:Source of Water:Existing Improvements:Gross Parcel Area:Public Street Dedication:Private Street Area:Net Area:LEGENDEMERGENCY ACCESS EASEMENTPUBLIC ACCESS EASEMENTPRIVATE UTILITY EASEMENTPRIVATE INGRESS & EGRESS EASEMENTEAEPAEPUEPIEEPRIVATE STORM DRAINAGE EASEMENTPRIVATE UTILITY EASEMENTPRIVATE INGRESS & EGRESS EASEMENTPSDEPSSEPUEPIEEPRIVATE SANITARY SEWER EASEMENTLANDSCAPING EASEMENTLEExterior Parcel BoundaryNew Lot LineStreet CenterlineEasement Line TENTATIVE MAPBeing a Portion of the 10.56 acre tract of land in theNorthwest one-quarter of Section 24, Township 7 South,Range 2, Mount Diablo Base & MeridianCity of Cupertino, California Sheet Index:1.Tentative Map2.Site Topographic Map & Demo Plan3.Preliminary Grading & Drainage Plan4.Preliminary Storm Water Management Plan5.Preliminary Utility Plan Looking North Existing PerviousPavementsawcut line
Not to Scale
(E) PL
2%Permeable Paverson Bedding Courseand Stone Subbaseper the Soils Engineerto match existingStreet Section 5'P/L
1.5-3.5%
Street Section-Cherryland Drive Widening Curb & Gutter or full depthVertical Curb & Sidewalkas shown on plan
14.5'CL(±8')20'(10.5')1.0-2.5%1.0-2.5%(5')(20')
SITE
Vicinity Map Assessor Parcel Map
Basis of Bearings:Basis of bearings is along the centerline of McClellan Roadas N89°56'35"E as shown on that certain Record of Survey Map filedfor record in Book 173 of Maps at Page 54.
X(x)X(x)X(x)X(x)X(x)X(x)X(x)X(x)X(x)X(x)X(x)X(x)X(x)X(x) X
(x) X (x)X
(x)X
(x)
X (x)X (x) X (x) X (x)X (x) X (x)X (x) X (x)X (x)X (x)X (x)X (x) (e)
(oh)
(e)
(oh) (sd)(ss) (ss)(ss)(ss)(ss)(ss)(ss)(ss)
(fh)
(w) (w) (w) (w) (w) (w) (w) (w)(w)(w) (w)
(w) (w)
(w)(w)
(w)(w)
(w)(w)
(w) (ss)
(sd)
(sd)(sd)(sd)(sd)(sd)
(sd)(sd) (ss)(ss)
(ss)(ss)(ss)
(w) (w)
(w)
X(x)X(x)
(ss)
(ss)
(ss)
(sd)
279.26ep
279.38ac dwy279.66ac dwy
279.63ep279.44clf
279.68fh279.92wv279.69ep
279.34ac dwy278.34ac dwy
278.68ep
278.79di 279.38ep279.29gb279.51ac dwy
280.64clf278.67ep
279.27clf278.86ep
278.45ac dwy
277.43gdw
277.96gdw277.41gdw
278.52clf278.38gdw278.48clf278.09gdw
277.79gdw
277.27fl277.81gdw
277.46gdw0.00fig 12
0.00JP
0.00JP
0.00*jp
280.95tc @ end280.84ep280.61ep280.47fnc ang280.66gas meter280.59sw 280.77tstp280.75tstp
281.29slb
281.32slb 280.46sw280.38sw280.37bw
280.16tc280.38sw279.72fl
279.76lip280.40dbl yellow
281.12bw
280.90tc @ dwy280.45fl280.51lip
281.52piv281.76wm281.55wm281.39wm281.05tel mh281.52dbl yellow 281.77bw281.61sw281.46sw281.48tc @ dwy
281.15tc @ dwy281.03fl281.14lip281.04lip280.97lip280.92fl 281.68ep281.23ep280.99ep280.73ep280.07ep 281.62tob282.07tob281.36tob281.33lo 12280.75cedar 11 280.88cedar 12
280.81lo 8 8 8 fork
281.16ut
281.54brdband can
281.44tc @ dwy281.84tc @ dwy282.13bw282.10ac dwy281.99tc @ ci 281.38fl281.48lip
fl 282.31slb282.60dbl yellow282.01flush curb282.10flush curb 280.82ug280.77ug280.80ug280.75ug
279.81wm
281.15uw281.09uw
280.88uw281.14uw
279.09tc @ dwy278.64tc @ dwy
278.64fl
278.68lip
279.83tc
278.75co
278.04fl278.59tc@ci, Inv271.44278.68ut
278.30ssmh, Inv268.05thru, 268.30in278.46sdmh278.12tc @ ci 278.90dbl yellow
278.14dbl yellow
277.05tc@ci, Inv272.75
279.24poc trunk cedar
279.37poc trunk cedar
279.38poc trunk cedar
279.86ng279.74sw279.79sw279.48brick wk279.31conc dwy279.09conc dwy278.99pavers278.84cedar 19279.13poc trunk pine 279.82poc trunk pine279.74poc trunk pine
280.71pine 24281.18pine 36280.66ep280.53ep280.54gate
280.77end fnc
278.41slb
278.49gdw
278.68ep
278.71ep278.71ep278.72ep
278.61ep278.61slb278.50ac dwy278.63ac dwy
279.37ac dwy279.28ac dwy278.56ac dwy278.44ip 6" post
278.70ip 6" post
278.77ac dwy
279.20ac dwy
279.55ac dwy279.94ac dwy
279.92ac dwy279.46ac dwy
278.58ep
278.60ep
278.39ep
280.09slb
280.07slb280.35sw
280.39sw281.45poc trunk cedar
281.31poc trunk cedar281.21poc trunk cedar
279.45slb 279.45slb279.50elect. meter279.22co
279.09slb279.21slb279.53slb281.32tstp
281.33tstp
281.30tstp
281.29tstp281.30tstp
278.44ac dwy
278.46ac dwy278.58ac dwy278.59slb278.58ac dwy278.12ac dwy277.62ac dwy277.71ng 278.01ng 279.19slb278.36steel plate 11" dia
278.05gdw277.19broken ac ep
277.47broken ac ep276.88broken ac ep276.78broken ac ep
277.04inside fnc276.01inside fnc
276.22broken ac ep
276.57broken ac ep
276.61ep
276.60ep276.13inv 4" abs sd276.39sd cnc patc @ inside fnc 276.38inside fnc
276.38inside fnc cor276.34ep276.33ep
278.75ng279.40clf280.10clf 278.69tc @ end278.40ep278.48ep278.60clf 278.37n side fnc jog s 1.5 to chlk fnc
278.83cedar 13 9
276.87ep276.99ep
276.50ep 276.70ep
276.67ep
277.12ng
277.42tree 10
278.37sp
277.38tc bc
277.05lip276.95pavers276.81fl276.88flush curb277.10lip276.90fl 276.96fl 276.96lip276.89fl
276.71fl276.72lip276.65lip
276.70tc276.23fl276.29lip276.74bw276.68sw276.61tc276.14fl276.20lip276.42ep276.50ep276.82tc276.72tc276.99dbl yellow 277.45sdmh
277.17bw277.27bw277.34bw277.47bw
278.60tc278.59tc278.12fl278.16lip278.16pavers276.99pavers 277.47tc
277.48tc276.97pavers277.73tc @ dwy277.26tc @ dwy277.28tc @ dwy277.67tc @ dwy277.23pavers 277.16pavers
277.68tc277.75tc
277.14pavers
277.15pavers
277.64tc
277.66tc @ end277.66brc
277.16fl277.16lip
277.31lip277.72brc277.39fl
277.44fl277.37lip277.79brc
277.77brc
277.82tc
277.36fl277.36lip277.32tow @ fnc cont 20' +-276.09ng
277.70fh
277.27ssmh
277.24wv277.26pavers
277.77tc276.59ng
277.13wv277.12pavers
277.75tc 277.82ng 278.43wv
Cherryland Drive (private Street)
McClellan Road
Bonny Drive
N89°55'16"E
139.01'
S0°02'48"E389.79'
N89°56'35"E139.33'S0°00'00"W389.74' (E) 8" Sewer(E) 6" Water (E) 24" Storm(E) 10" Sewer(E) 8" Water
APN 359-20-030
(E) Barn and all other accessorystructures to be demolished (E) Houseto be demolished
(E) Garageto be demolished(E) ADUto be demolished
(E) AC Driveway to beremoved(E) Gravel Drivewayto be removed (E) AC Driveway to beremoved (E) AC Driveway to beremoved (E) Drive Apronto be Plugged
(E) Drive Apronto be Plugged
All (E)slabs &walkways onsite to bedemolished
All (E)slabs &walkways onsite to bedemolished
All (E)slabs &walkways onsite to bedemolished
1 2 3 4 5 6 7 8 9 10111213141516171819202122232425262728293031320 1 2
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23 0L:\Projects\Harry\221047-Alok Ventures, LLC, McClennan Road, Cupertino\DWG\221047 C2-Topo Map & Demo Plan.dwg - 7/19/2021 6:45 PM - Plotted 7/19/2021 6:46 PM by Harinder Singla JOB NO.
OF 16075 Vineyard BoulevardMorgan Hill, CA 95037DATE:SCALE:DRAWN BY:CHECKED BY:
Xrefs: 221047 LO Existing
SHEET221047C25 Site Topographic Map & Demo Plan20860 McClellan RoadMay 20211"=20'MFHS STORM DRAIN MANHOLE (SD-1)SLOPE SECTION - DETAILMONUMENT, TYPE AS SHOWNBENCH MARKSTREET BARRICADE (A-32)
WATER MAINSANITARY SEWERSTORM DRAIN
FENCE, TYPE AS SHOWN
DRIVEWAY APPROACH (A-8 & 9)CURB AND GUTTER
DROP INLET (SD-4)CURB INLET (SD-5)SWALEREVISION
W GAS(T)(E)(G)TELEPHONEELECTRIC(W)(SS)(SD)
DESCRIPTION (City Std Detail#)CENTER LINEPROPERTY LINELEGENDPROPOSEDEXISTING SHEET NO.
BEG. VERTICAL CURVEBVC MAXIMUMMAX.
PRIVATE STORM DRAIN EASEMENTPUBLIC SERVICE EASEMENTPROPERTY LINEPULL BOXREINFORCED CONCRETE PIPESTORM DRAIN MANHOLESANITARY SEWER MANHOLESIDEWALKTEMPORARY BENCH MARKTOP OF CURBWATER METERWATER VALVE
RIGHT OF WAYSTANDARDPOINT OF VERTICAL INTERSECTIONNATURAL GROUND
EPEDGE OF PAVEMENTSWEND VERTICAL CURVEFIRE HYDRANTFLOW LINEGRADE BREAKFINISH GRADEFINISH FLOOREND OF RETURN GBFHFGFLEVC(E) EXFFEREXISTINGWMWVTYP.TYPICALTCTBMEND OF CURVEDRIVEWAYDUCTILE IRON PIPEEXISTING GRADEELECTROLIERDROP INLETCLEAN OUTCORRUGATED METAL PIPECENTERLINE OF DRIVEWAYCENTERLINECURB INLETCATCH BASINBACK OF SIDEWALKCL D/WDID.I.P.ECEGELCTDWYCMPCOCBCIBW SSMHSTD.SDMHR/WP.S.E.P.S.D.E.RCPPVI
MIN.PBNGMINIMUMHIGH POINTGATE VALVELOW POINTJOINT POLEASPHALT CONCRETEBEGINNING OF CURVEBUILDINGBCBLDGABBREVIATIONS:AC INV.LPJPINVERTGVHP XXXXX
SDSS
LC LP
(A-31)
(2.1%)2.2%D15
SD (SD)
BASE FLOOD ELEVATIONBFE
> >
E
STORM JUNCTION BOX
HANDICAP RAMP (A-1 & A-5)
North
SCALE: 1"=20'010203040
LICENSED LAND SURVEYORHARINDER SINGLASTATE OF CALIFORNIANo. 8347 (sd)
(sd)(sd)(sd)
(sd)(sd)(sd)(sd)(sd)
(sd)
SD SD SD SD SDSD
SDSD SDSD
SDSD SDSD
SD SDSD SD
SD
SDSD
SD
SD SDSDSD
SD
SD
SDSD
SD SDFF 279.35Pad 278.52FF 279.80Pad 278.97FF 280.20Pad 279.37FF 280.60Pad 279.77 Cherryland Drive (private Street)
McClellan Road
Bonny Drive
(25')(10.5')(20')20'5'
(5')
(±8)'
12" Bulkhead Retaining Wallbelow Fence@ Property Line(278.77) (279.26)(279.54)(279.77)(280.10)(280.38)(280.54)(281.45)(281.68) (277.20)
(276.38)(276.04)(276.41)
Min 6"-Max 27"CMU Retaining Wall@ Property Line
Max 27" CMURetaining Wall@ Property Line
Pad 279.77FF 280.60(0.20'+0.67')FF=HP Swale +10" Slab Section (281)
(280)(280)
(281)
(279)
(277)
(278)
(278) (278) (279)
(280)
(280)(279)
(279)
(277) (278)(279)(279)
(281)
(282)
(278)
TypicalBio-Retention BasinMax. 9" Ponding
Typ. Lot SwaleTyp. Lot Swale
Typ. Lot Swale
280.16tc 279.72fl279.76lip
280.90tc @ dwy280.45fl280.51lip
281.12tc @ dwy
280.97lip280.92fl
281.84tc @ dwy
tc @ ci281.38fl
279.09tc @ dwy278.64fl
278.68lip278.27lip
278.14lip278.02fl
278.59tc@ci, Inv271.44
277.05tc@ci, Inv272.75
277.38tc bc
277.05lip276.95pavers277.10lip276.96fl
276.96lip276.89fl 276.71fl277.17tc poc276.72lip
276.70tc 276.23fl276.29lip276.61tc 276.14fl276.20lip
277.35hcr
278.59tc278.12fl278.16lip276.99pavers277.47tc
277.48tc
276.97pavers
277.73tc @ dwy277.67tc @ dwy
277.23pavers
277.16pavers277.68tc277.75tc 277.14pavers
277.15pavers277.64tc277.66tc @ end277.66brc
277.16fl277.16lip
277.31lip
277.72brc277.39fl277.44fl277.37lip277.79brc
277.77brc277.82tc
277.36fl 277.36lip277.26pavers
277.77tc 277.12pavers277.75tc
(20')(30')
Typ Roof LeaderSplash Block
S1 S1
S2S2
HP Fl278.70TW279.00TW279.00
TW278.63
FF 279.60Pad 278.77
MOFG 278.90Fl278.42Fl278.42
Fl278.37
hp Fl278.70
Fl278.30
hp278.70
TW279.00
TW279.00
(278.51)
FF 279.43Pad 278.60
Fl278.22HP Fl278.56Fl278.22
(279.04)
(6" Wall)
(3" Wall)
(12" Wall)TW279.00
(22" Wall)
(27" Wall)(24" Wall)(27" Wall)
(6" Wall)(6" Wall)(3" Wall) (6" Wall)(3" Wall)
(E)FF 279.20±(E)Pad 277.20±
(E)FF 278.70±(E)Pad 276.70±
(E)FF 279.37±(E)Pad 277.37±
389.74'-1.4%-3.1% 3.5%-4%
Fl278.67
Bottom 277.30TW278.00
Fl278.00
Fl277.14
HP Fl278.47
Fl277.58
HP Fl278.92
Fl277.93
HP Fl279.32HP Fl279.72
Fl278.40
TW278.30 (E) CIto be Replacedwith a ManholeRIM 279.44INV 271.44, 15"∅OutINV 271.44, 15"∅Out CIGrate 278.77INV 273.20, 15"∅Out
SDMHRIM 278.27INV 274.25, 10"∅InINV 272.00, 15"∅InINV 272.00, 15"∅InINV 271.44, 15"∅Out(E) CIRIM 276.60INV 272.75, 15"∅In CIGrate 276.54INV 272.65, 10"∅Out
(E)SDMHRIM 273.31INV 271.00, 15"∅In
201' - 10"Ø HDP@ S=0.80%
30' - 15"Ø RCP @ S=4.04%
(E) 15"Ø SD @ S=2.61%
(E) 15"Ø SD @ S=1.48%
Bottom 277.18Bottom 277.65Bottom 276.83Bottom 276.39
Bottom 277.25
TW278.63Overflow
Overflow
OverflowOverflow OverflowOverflow
Lot 1Lot 2Lot 3Lot 4Lot 5Lot 6
PROFILE: Grading Section S1SCALE H: 1"=20'SCALE V: 1"=5'277278279280281282 277278279280281282
0+501+001+502+002+503+003+504+004+32
Avg. 12" High(Max 27")CMU Retaining Wall@ Property LinePad278.77Pad278.60Pad278.52Pad278.97Pad279.37Pad279.77Lot 6 Lot 5 Lot 4 Lot 3 Lot 2 Lot 1McClellan Road(30' R/W)(E)Pad279.0±Exterior BoundaryTypical Bulkhead Retainerat the bottom of Fenceas needed@ Property Line PROFILE: Grading Section S2SCALE H: 1"=20'SCALE V: 1"=5'275276277278279280281 275276277278279280281
0+501+001+502+002+09
12" Bulkhead Retainerat the bottom of Fence@ Property LineCherryland Drive(Private Street)Pad278.97Lot 3 Parcel BAPN359-20-043(E)FF 279.2±(E)Pad 277.2± 1 2 3 4 5 6 7 8 9 10111213141516171819202122232425262728293031320 1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 0L:\Projects\Harry\221047-Alok Ventures, LLC, McClennan Road, Cupertino\DWG\221047 C3-Prelim Grading & Drainage Plan.dwg - 8/10/2021 1:16 PM - Plotted 8/10/2021 1:17 PM by Harinder Singla JOB NO.
OF 16075 Vineyard BoulevardMorgan Hill, CA 95037DATE:SCALE:DRAWN BY:CHECKED BY:
Xrefs: 221047 LO Existing; 221047 LO New; 221082 Arch 7-02-21 SHEET221047C35 Preliminary Grading & Drainage Plan20860 McClellan RoadAug 20211"=20'MFHS HARINDER SINGLASTATE OF CALIFORNIAC49717REGISTERED PROFESSIONAL ENGINEER ±13'
14.5'
North
SCALE: 1"=20'010203040
gff279.57
gff279.40
Looking North Existing PerviousPavementsawcut line
Not to Scale
(E) PL
2%Permeable Paverson Bedding Courseand Stone Subbaseper the Soils Engineerto match existingStreet Section 5'P/L
1.5-3.5%
Street Section-Cherryland Drive Widening Curb & Gutter or full depthVertical Curb & Sidewalkas shown on plan
14.5'CL(±8')20'(10.5')1.0-2.5%1.0-2.5%(5')(20')
(sd)
(sd)(sd)(sd)(sd)(sd)(sd)(sd)(sd)
(sd)
276.82city cup bd in mbox
281.35Cross
278.96Cross
279.63pk
277.54Spike
279.26Spike
277.77Mag Nail
277.70ink x276.66fd bd in mbox
SD SD SD SD SDSD
SDSD SDSD
SDSD SDSD
SD SDSD SD
SD
SDSD
SD
SD SDSDSDSD
SD
SDSD
SD SD7,769sf6,739sf6,720 sf6,735 sfDMA-6
20'
7,467sf
Cherryland Drive (private Street)
McClellan Road
Bonny Drive
(25')(10.5')(20')20'5'
(5')
(±8)' (E) CIto be Replacedwith a ManholeRIM 279.44INV 271.44, 15"∅OutINV 271.44, 15"∅Out CIGrate 278.77INV 273.20, 15"∅Out
SDMHRIM 278.27INV 274.25, 10"∅InINV 272.00, 15"∅InINV 272.00, 15"∅InINV 271.44, 15"∅Out (E) CIRIM 276.60INV 272.75, 15"∅In
CIGrate 276.54INV 272.65, 10"∅Out
(E)SDMHRIM 273.31INV 271.00, 15"∅In
201' - 10"Ø HDP@ S=0.80%30' - 15"Ø RCP @ S=4.04%
(E) 15"Ø SD @ S=2.61%
(E) 15"Ø SD @ S=1.48%
0' - 15"Ø RCP @ S=0.00%
Building Setback
Building Setback
Building Setback
(281)
(280)(280)
(281)
(279)
(277)
(278)
(278) (278) (279)
(280)
(280)(279)
(279)
(277) (278)(279)(279)
(281)
(282)
(278)
TypicalBio-Retention BasinMax. 9" Ponding
Bottom 277.18Bottom 277.65Bottom 276.83Bottom 276.39
Typ. Lot SwaleTyp. Lot Swale
Typ. Lot Swale
-0.91%-0.25%-0.25%-0.25%-0.67% -0.67%GbTc278.25Tc277.85Tc277.44LPTc277.04GbTc276.96PRC GbTc277.09 Tc277.40
280.16tc 279.72fl279.76lip
280.90tc @ dwy280.45fl280.51lip
281.12tc @ dwy
280.97lip280.92fl
281.84tc @ dwy
tc @ ci281.38fl
278.64fl
278.68lip278.27lip
278.14lip278.02fl
278.59tc@ci, Inv271.44
277.05tc@ci, Inv272.75
277.38tc bc
277.05lip276.95pavers277.10lip276.96fl
276.96lip276.89fl 276.71fl277.17tc poc276.72lip
276.70tc 276.23fl276.29lip276.61tc 276.14fl276.20lip
277.35hcr
278.16lip
277.48tc
276.97pavers
277.73tc @ dwy277.67tc @ dwy
277.23pavers
277.68tc
277.15pavers277.64tc277.66tc @ end277.66brc
277.16fl277.16lip
277.31lip
277.72brc277.39fl277.44fl277.37lip277.79brc
277.77brc277.82tc
277.36fl 277.36lip
(20')(30')
Typ Roof LeaderSplash Block
Bottom 277.25
WS278.05Bottom 277.30
7'
9.34'
10'18'
10'
10'16.5'
38.5'
10'16.5'
10'16.5'
17.5'WS278.00WS277.14WS277.58WS277.93WS278.40
Overflow
Overflow
OverflowOverflowOverflow
Lot 1Lot 2Lot 3Lot 4Lot 5Lot 68,730sfDMA-5DMA-4DMA-3DMA-2DMA-1 5'
1 2 3 4 5 6 7 8 9 10111213141516171819202122232425262728293031320 1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 0L:\Projects\Harry\221047-Alok Ventures, LLC, McClennan Road, Cupertino\DWG\221047 C4-Prelim StormWater Management Plan.dwg - 8/10/2021 1:20 PM - Plotted 8/10/2021 1:20 PM by Harinder Singla JOB NO.
OF 16075 Vineyard BoulevardMorgan Hill, CA 95037DATE:SCALE:DRAWN BY:CHECKED BY:
Xrefs: 221047 LO Existing; 221047 LO New; 221082 Arch 7-02-21 SHEET221047C45 Prelim StormWater Management Plan20860 McClellan RoadAug 20211"=20'MFHS HARINDER SINGLASTATE OF CALIFORNIAC49717REGISTERED PROFESSIONAL ENGINEER ±13'
14.5'
Vegetation per Landscape Plans)Engineered Bio-soilPlanting MediaClass 2 drain rock Ponding Depth (Max. 9")
Natural/UncompactedSubgradeScale: NoneTypical Bio-Retention Basin Detail Length Varies (see plan)
3" MulchLayer
18"Min.
North
SCALE: 1"=20'010203040
24"Min.TypicalPlanter/Retaining CurbEnclosure
12"
3"FreeboardTyp.36"Overflow Weir
Bio-Soil Level9"ponding
Scale: NoneTypical Downstream Elevation
Width Varies (See Plan)
Scale: NoneC.3 Compliant Permeable Pavement Section
3"FreeboardTyp.
JTJTJTJTJTJTJTJTJTJTJTJTJTJTJTJTSD SD SD SD SDSSSS SS
SS SS SSWW W W W W
CO
CO
CO
CO CO
CO
CO
E
E
E E E E
SD
SDSD SDSD
SDSD SDSD
SD SDSD SD
SD
SDSD
SD
SD SDSDSDSD SD
SDSD
SD SD(e)(oh)
(e)
(oh)
(sd)(ss) (ss)(ss)(ss)(ss)(ss)(ss)(ss)
(fh)
(w) (w) (w) (w) (w) (w) (w) (w)(w)(w) (w)
(w)
(w)(w)
(w)(w)
(w)
(w)(w)
(w)
(ss)
(sd)(sd)(sd)
(sd)(sd)(sd)(sd)(sd) (ss)(ss)(ss)(ss)
(ss)
(w) (w)(w)
(ss)
(ss)
(ss)
(sd)
JTJTJTJTJTJTJTJTJTJT
JT
276.82city cup bd in mbox
281.35Cross
278.96Cross
279.63pk
277.54Spike
279.26Spike
277.77Mag Nail
277.70ink x276.66fd bd in mbox
LOT 2
PL-1PL-2RPL-3
PL-4
PL-2 PL-2
ADU
ADU ADUADU ADU ADU
1 1 1 1 1 122 22 2 21
Appx Loaction(E) Joint Trench
Appx LocationProposedJoint Trench
3333
3 3
5 4
4 66
(E) 8" Sewer(E) 6" Water
(E) 24" Storm(E) 10" Sewer(E) 8" WaterCherryland Drive (private Street) McClellan Road
Bonny Drive
Lot 1Lot 2Lot 3Lot 4Lot 5Lot 6
87 Utility Improvement Notes City Standard 4"Ø Sewer Lateral City Standard 1"Ø Water ServiceStandard Electrical ServiceExisting Private Street LightExisting Fire HydrantProposed Private Street Light if NecessaryRemove Existing Service Pole & Overhead to the HouseRelocate Existing Joint Pole behind new Curb & Gutter at alocation approved by the City 12354687
1 2 3 4 5 6 7 8 9 10111213141516171819202122232425262728293031320 1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 0L:\Projects\Harry\221047-Alok Ventures, LLC, McClennan Road, Cupertino\DWG\221047 C5-Prelim Utility Plan.dwg - 8/5/2021 5:57 PM - Plotted 8/10/2021 1:21 PM by Harinder Singla JOB NO.
OF 16075 Vineyard BoulevardMorgan Hill, CA 95037DATE:SCALE:DRAWN BY:CHECKED BY:
Xrefs: 221047 LO New; 221047 LO Existing; 221082 Arch 7-02-21 SHEET221047C55 Preliminary Utility Plan20860 McClellan RoadAug 20211"=20'MFHS HARINDER SINGLASTATE OF CALIFORNIAC49717REGISTERED PROFESSIONAL ENGINEER