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Controls Maint Agmt Stormwater Treatment 06092017
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Controls Maint Agmt Stormwater Treatment 06092017
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9/22/2020 9:49:11 AM
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CM City Clerk-City Council
CM City Clerk-City Council - Document Type
Agreement
Document Date (6)
8/23/2019
Recorded Document Type
Stormwater Treatment
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PERM
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OVERFLOW RISER W/ GRATE ~BEYOND) <br />OLDCASTLE CB-1212 (12"x12 ) OR <br />ATRIUM GRATE ON BUBBLE UP RISER (LEVEL WITH OVERFLOW) <br />W/4"± COBBLE APRON 12" MIN @PERIMETER OF RISER---. <br />(VERIFY BUBBLE-UP TG IS LOWER THAN ALL UPSTREAN TGs) . CB-1818 (18"x18") OR APPROVED EQUAL <br />SIZE AS SHOWN ON PLANS <br />PLACE 4" MIN. DIA. APPROVED <br />COBBLES 0.2 FT BELOW CURB <br />OPENINGS FOR DISTANCE OF 2 FT <br />EITHER SIDE OF CURB OPENINGS <br />EXTENDED TO BR FL <br />IF NATIVE MATERIAL IS USED FOR SIDESLOPE, RELATIVE <br />COMPACTION OF SUBGRADE TO BE SIMILAR TO ADJOINING <br />NATIVE SOILS. 3: 1 SIDE SLOPE <br />DOWNSPOUT PER MEP -· <br />PLANS 0 <br />CLEANOUT WITH CAP <br />AT FIN. GRADE <br />4"± COBBLE, 2' WIDE MIN. <br />APRON EXTENDED TO BR FL <br />BUBBLE-UP -~ .......... <br />1 8" PVC RISER ! l=i 11=1' '=-, 11 _, _ : > /> ~ .. ······. <br />NATIVE SOIL 2% MINIMUM <br />SLOPE TO UNDERDRAIN <br />RAIN WATER LEADER <br />OR SD SYSTEM AS <br />SHOWN ON PLANS <br />1: 1 PLANE OF INFLUENCE <br />FROM BOTTOM OF BUILDING FOOTING <br />TO CLEAR BIOTREATMENT SOIL LAYER <br />OPEN BOTTOM TEE-FITTING <br />ON TOP OF 12" ROCK <br />18" BIOTREATMENT SOIL MIX (BSM) PER <br />ATTACHMENT L OF THE C.3 STORMWATER <br />TECHNICAL GUIDANCE DATED MAY 14, 2013 <br />{INFILTRATION RATE 5-10 INCH/HR) <br />Kimley»> Horn <br />1300 Cloy Street, Suite 325 Tel. No. (510) 625-0712 @2017 <br />Oakland. Colifomio 94612 <br />1 2" CLASS II PERMEABLE ROCK <br />PER CAL TRANS SPECIFICATIONS <br />Plotted By:. Barnes, Michael Sheet Set: Kha Layout: 8-2 June 07, 2017 09: 14: 23am <br />K: \OAK_LDEV\197051001 -WllOams Street-DCT San Leandro\CADD\Exhlb;ts\2017.06.06 STORMWATER EXHIBITS.dwg <br />EXHIBIT 8-2 <br />PLACE GEOTEXTILE <br />BETWEEN COBBLES <br />AND NATIVE SOIL <br />FOR EROSION CONTROL <br />12" WIDE CURB <br />OPENING SEE PLAN <br />FOR LOCATION <br />UNDERDRAIN CLEANOUT <br />WI TH RIM TO FG. <br />LINE SIDES & BOTTOM OF BIORETENTION <br />WITH IMPERMEABLE LINER, <br />10-MIL VISQUEEN PER GEOTECHNICAL <br />ENGINEER RECOMMENDATION. <br />4• DIA. PERFORATED UNDERDRAIN <br />AT BOTTOM OF ROCK LAYER @ 6' 0.C., <br />WITH PERFORATIONS POINTING DOWN. <br />SOLID STORMDRAIN PIPE <br />(SIZE & SLOPE PER PLANS) <br />2001 WILLIAMS ST <br />SAN LEANDRO, CA <br />OCT WILLIAMS ST
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