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OVER FLOW INLET <br />TOP OF <br />BIORETENTION <br />6" MIN <br />PONDING <br />2"-4" COBBLE STONES <br />AS ENERGY DISSIPATER. <br />PLACE ALONG AND OVER <br />FLOW SPREADER 24" WIDE <br />CENTERED ON PIPE <br />LINE SIDES AND <br />BOTTOM WITH <br />60—MIL VISQUEEN <br />A�.-. M1• 1 r �.e ti.. f� <br />PARKING STRUCTURE, <br />SEE ARCHITECTURAL <br />DRAWINGS FOR DETAILS <br />RAINWATER LEADER, SEE PLAN FOR <br />LOCATIONS. SEE PLUMBING DRAWINGS <br />FOR RAINWATER LEADER DETAILS <br />CONNECT PERFORATED PVC PIPE TO <br />RAINWATER LEADER, FACE PERFORATION <br />DOWN TO SPREAD FLOW 15' IN EACH <br />DIRECTION (SEE UTILITY PLAN FOR SIZE <br />INVERT ELEVATION). SLOPE AT 0.5% MIN <br />18" MIN TREATMENT SOIL SHALL BE LOAMY <br />SAND WITH A 5—INCH PER HOUR <br />PERCOLATION RATE PER SAN MATED <br />COUNTYWIDE WATER POLLUTION PREVENTION <br />PROGRAM (SMCCWP) SOIL GUIDELINES <br />�1 <br />12" MIN DRAIN ROCK PER CALTRANS <br />STANDARD SECTION 68-1.025 CLASS <br />2 PERMEABLE MATERIAL <br />COMPACTED AND <br />SCARIFIED NATIVE OR <br />IMPORTED FILL <br />4" PERFORATED—/ STORM DRAIN <br />PVC PIPE SLOPED PIPE <br />0.5% MIN TO INLET <br />3.77'---� <br />FLOW SPREADER AT <br />1 RAINWATER LEADERS <br />NTS <br />BRF <br />ENGINEERS. SURVEYORS <br />4870 we_ww RD.. SUITE 250 <br />PLEASANTON, CA "0Wjer_0 ,)r <br />100+ <br />YEARS <br />PLANNERS <br />(925) 3N-77oa <br />Drawn AP <br />EXHIBIT "B" <br />STORMWATER CONTROL PLAN <br />STANFORD HEALTH CARE <br />Checked KW <br />Approved KW <br />$Noi 2A) 9 of <br />