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4' REMOVABLE NDS POLYOLEFIN <br />ATRIUM GRATE OVERFLOW ORWN <br />BUILDING DOWNSPOUT 1 <br />SET 6' ABOVE <br />PLANTER WALL, SPP <br />6' FREEBOARD <br />COBBLE AROUND <br />OF PLANTER WALLS <br />OVERFLOW INLETS 12' PONDING <br />PROVIDE MIN 12' <br />WIDE BAND OF 2'-4' <br />COBBLE AROUND 1A 10.6' PORDRCG <br />OVERFLOW INLETS 1B:9 4' PONDING <br />2' MIN MULCH BETWEEN PLANTINGS, <br />SEE LANDSCAPE DRAWINGS <br />18' BIOTREATMENT SOIL MIX <br />PER C.3 TECHNICAL SOIL <br />SPEGFICATIONS APPENDIX K <br />12'-23' CLASS II PERMEABLE <br />ROCK PER CALTRANS <br />SPECIFICATIONS OR SIMILAR <br />SEE PWMBING PLANS FOR SD OUT <br />STORM DRAIN ROUTING. <br />i <br />FINISHED FLOOR <br />TOP OF WALL <br />4' REMOVABLE NDS POLYOLEFIN <br />ATRIUM GRATE OVERFLOW DRAIN, <br />SEE LANDSCAPE DRAWINGS <br />TOP OF WALL <br />B' FREEBOARD <br />SEE STRUCTURAL <br />PROVIDE MIN 12* — — — — — — —� <br />WIDE BAND OF 2'-4' <br />PLANS FOR DETAILS <br />COBBLE AROUND <br />OF PLANTER WALLS <br />OVERFLOW INLETS 12' PONDING <br />AND BUBBLE—UP <br />MULCH <br />STRUCTURES <br />FINISHED GRADE <br />2' MIN MULCH BETWEEN PLANTINGS,' <br />SEE LANDSCAPE DRAWINGS <br />24' BIOTREATMENT SOIL MIX <br />PER C.3 TECHNICAL SOIL <br />BIO—SOIL <br />SPECIFICATIONS APPENDIX K <br />12 —IB' CLASS II PERMEABLE ' <br />ROCK PER CALTRANS <br />SPECIFICATIONS OR SIMILAR <br />SEE PLUTARIK PLANS FOR <br />PLANTE9_L0W POINT STORM DRAW ROUTITL6. <br />LINK SEAL WITH STAINLESS STEEL (SEE NOTE 4) <br />HARDWARE, SEE DETAIL 4/CIO.A UNK SEAL WITH STAINLESS STEEL <br />WAITRPROOF►IG MEMBRANE HARDWARE, SEE DETAIL 4/C70.4 <br />4' PE'RFORAfED SUBORAYE. S•0.5X MIN TOWARD OUTLET, <br />PETWORATIORS ON BOTTOM "SIDE BOTTOM OF PLANTER <br />SLOPED TOWARD PERFORATED PIPE AT 0.5X MW <br />TREATMENT P R 1 <br />2' <br />4 <br />2' MIN. MULCH BETWEEN <br />SEE LANDSCAPE <br />EXISTING CREEK <br />CONCRETE CHANNEL <br />ilA'3TA TdR MMj�:�1:T�i <br />H �66TLF <br />B UOWN4 <br />eETAEEN 1WA ANO IVEE <br />TREATMENT PLANTER AREA 2 <br />MEw <br />TREATME14T_PLANTER AREA 4 <br />N <br />r SEE STRUCTURAL <br />PLANS FOR DETAILS <br />OF PLANTER WALLS <br />FlNI w <br />AYLO_— <br />if WATERPROOFWG <br />YEVtPAA[ <br />B10—SOIL <br />SO IN BUBBLE—UP WVERT <br />VARIES, SPP <br />11 �$Ay_IEBj TSA POINT <br />DRAM, S -05R MIN TOWARD OUTLET <br />OTTON WSOE BOTTOM OF PLANTER <br />FORAVM APE AT 0.5% MIN <br />Y iBEEB0AR0 <br />2B' POIIOXX, <br />Y MAN MUCH <br />IB' BIOREAW NT SOIL MX <br />PEA CJ lEC1MIVL SOL <br />SPLUEICAAlN6 APPEIOK K <br />W <br />lx' cuss E PERMEABLE <br />4' PAST BOTRIW <br />REVISED EXHIBIT B-2: BIORETENTION DETAIL <br />255 SHORELINE DRIVE SUITE 200 <br />REDWOOD CITY, CA 94065 1180 MAIN STREET <br />■■ 650/482-6300 <br />•■0 B It F 650/482-6399 (FAX) <br />ENDM!®T9/suxvBraAUPLARreEs STORMWATER MAINTENANCE AGREEMENT <br />Job No. 20170253 Date 04/21/22 Sheet 2 of 3 <br />