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ATT(/AGR.2017.203/Lane Partners, LLC - STMMA
<br />Detention Requirements
<br />Q1o,r from Existing Site
<br />TOTAL
<br />Q30w from Proposed Site
<br />TOTAL
<br />23oyr from Proposed Blo-Retentlon
<br />TOTAL
<br />Pump Rate 010 -yr alsting (cfs): 1.11 - 0.29 - 0.82
<br />Post -Development Stomtwater Storage
<br />Volume difference between 10 -yr Existing and 30 -yr Proposed
<br />222.34 cf
<br />Nate; Post -Development 5tormwater 5toraoe is estimated per Attachment 0 of the City of Redwood Gtv's design oritierta
<br />BIVIP Summary Table Cont
<br />10 year
<br />TOTAL AREA
<br />IMPERVIOUS AREA
<br />PERVIOUS AREA
<br />Percent
<br />Runoff
<br />AREA
<br />Ac.
<br />0.00
<br />Percent
<br />Impervious
<br />100.0%
<br />Tc (min)
<br />intensity, i
<br />sq, ft.
<br />Ac.
<br />sq, ft.
<br />Ac,
<br />sq. ft.
<br />Ac.
<br />Impervious
<br />Coefficient, c
<br />Q1ayr (cis)
<br />Volume (of)
<br />10
<br />1.80
<br />29,892.10
<br />0.69
<br />29,892.10
<br />1
<br />0.69
<br />0.00
<br />0.00
<br />100.0%
<br />0.90
<br />1.11
<br />1,000.52
<br />0-01
<br />BIO-RETENTIONAREAS
<br />29,892.10
<br />0.69
<br />29,892.10
<br />0.69
<br />0.00
<br />1
<br />0.00
<br />100.0%
<br />0.90
<br />1.11
<br />1,000.52
<br />TOTAL
<br />30 year
<br />TOTAL AREA
<br />IMPERVIOUS AREA
<br />PERVIOUS AREA
<br />Percent
<br />Runoff
<br />0.00
<br />100.0%
<br />Tc (min)
<br />intensity, i
<br />sq. it.
<br />Ac.
<br />sq. ft.
<br />Ac.
<br />sq. ft,
<br />Ac.
<br />Impervious
<br />Coefficient, c
<br />Q30 -yr (cis)
<br />Volume (cfj
<br />10
<br />2.20
<br />29,892.10
<br />0.69
<br />29,892.10
<br />6.69
<br />0.00
<br />0.00
<br />100.0%
<br />0.90
<br />1.36
<br />1,222.86
<br />29,892.10
<br />0.69
<br />29,892.10
<br />0.69
<br />0.00
<br />0.00
<br />100.0%
<br />0.90
<br />1.36
<br />1,222.86
<br />30 year
<br />TOTAL AREA
<br />IMPERVIOUS AREA
<br />PERVIOUS AREA
<br />Percent
<br />Runoff
<br />Tc (rain)
<br />intensity, i
<br />sq, ft. I Ac.
<br />sq, ft. I
<br />Ac.
<br />sq. ft.
<br />Ac.
<br />Impervious
<br />Coefficient, c
<br />Q30 -yr (cis)
<br />Volume (ef)
<br />10
<br />2.20
<br />6,462.00
<br />0.15
<br />6,462.00
<br />0.15
<br />0-00
<br />0.00
<br />100.0%
<br />0.90
<br />0.29
<br />264.35
<br />6,462.00
<br />0.15
<br />6,462.00 I
<br />0.15
<br />0.00
<br />0,00
<br />100.0%
<br />0.90
<br />0.29
<br />264.35
<br />Pump Rate 010 -yr alsting (cfs): 1.11 - 0.29 - 0.82
<br />Post -Development Stomtwater Storage
<br />Volume difference between 10 -yr Existing and 30 -yr Proposed
<br />222.34 cf
<br />Nate; Post -Development 5tormwater 5toraoe is estimated per Attachment 0 of the City of Redwood Gtv's design oritierta
<br />BIVIP Summary Table Cont
<br />Treatment Area Treatment Adequate
<br />Required (sf) Provided (sf) Sizing
<br />5 CARTRIDGE STACK, S.P.P.
<br />118
<br />112
<br />231
<br />DATE : 05-24-17
<br />S A N D I S ICIVIL Stunlvi� 0:S ENGINEERS �WHey H.T.S. EXHIBIT B
<br />7005.wincllester6lvd,Suite 200,Campbell, CA 950081 P.408,636.09WIF.408.636.0999iwwwsandis.ne,'�0DrAwIluc NGNQ: STORMWATER MANAGEMENT PLAN
<br />zi4oiar
<br />Fite. K. `0 & M Agreementj214081 Exhibit RlExhibit B - 57-ORMWATER MANAGEMENT PLAN. dwg Date. Aug 23, 2017 - 1.28pm sping
<br />127 I OK
<br />129 OK
<br />256 OK
<br />SHEET
<br />B2
<br />OF 7 SHEETS
<br />Drainage Area
<br />TOTAL
<br />sq. ft.
<br />AREA
<br />Ac_
<br />0.54
<br />IIAPERVIOUS
<br />sq. ft.Ac.
<br />23,430.10
<br />AREA
<br />0.54
<br />PERVIOUS
<br />sq. 1.
<br />0% 00
<br />AREA
<br />Ac.
<br />0.00
<br />Percent
<br />Impervious
<br />100.0%
<br />Runoff
<br />Coefficient, c
<br />0.90
<br />Q (cf5) Required
<br />00BI
<br />DE°TENTION VAULT 1 23,430.10
<br />ETENTI
<br />N TREA
<br />ENT (FLO
<br />IV -BASED S'hNGj
<br />BIO -RETENTION AREAS
<br />2
<br />3,313.30
<br />0.08
<br />3,313.30
<br />0.08
<br />0.00
<br />0.00
<br />100.0%
<br />0.90
<br />0-01
<br />BIO-RETENTIONAREAS
<br />3
<br />3,148.70
<br />0.07
<br />3,148.70
<br />0.07
<br />0.00
<br />0.00
<br />100.0%
<br />1
<br />0.90
<br />0.01
<br />TOTAL
<br />29,892.10
<br />0.69
<br />29,882.10
<br />0.68
<br />0.00
<br />0.00
<br />100.0%
<br />0.90
<br />0.12
<br />Treatment Area Treatment Adequate
<br />Required (sf) Provided (sf) Sizing
<br />5 CARTRIDGE STACK, S.P.P.
<br />118
<br />112
<br />231
<br />DATE : 05-24-17
<br />S A N D I S ICIVIL Stunlvi� 0:S ENGINEERS �WHey H.T.S. EXHIBIT B
<br />7005.wincllester6lvd,Suite 200,Campbell, CA 950081 P.408,636.09WIF.408.636.0999iwwwsandis.ne,'�0DrAwIluc NGNQ: STORMWATER MANAGEMENT PLAN
<br />zi4oiar
<br />Fite. K. `0 & M Agreementj214081 Exhibit RlExhibit B - 57-ORMWATER MANAGEMENT PLAN. dwg Date. Aug 23, 2017 - 1.28pm sping
<br />127 I OK
<br />129 OK
<br />256 OK
<br />SHEET
<br />B2
<br />OF 7 SHEETS
<br />
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