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2-4" COBBLES AROUND <br />BUBBLE UP GRATE <br />BIORETENTION SOIL MIX <br />PER SAN MATEO COUNTY <br />WATER POLLUTION PREVENTION <br />PROGRAM C.3 REGULATED <br />PROJECTS GUIDE APPENDIX K. <br />W <br />ME <br />J <br />O <br />z <br />w <br />Q <br />w <br />o' <br />or <br />Ln <c <br />c� <br />ry <br />w <br />Q <br />0 <br />w <br />ckf <br />4" SOLID PVC <br />SUBDRAIN PIPE <br />S=1% MIN <br />4" PERFORATED PVC PIPE <br />TO DIFFUSE STORM WATER <br />(HOLES FACE DOWN) <br />NOTES: <br />U <br />c <br />-111-111-11 P�I <br />PER SHEET GP -1 <br />- BUBBLE UP <br />5" SQUARE GRATE NDS <br />GRATE OR EQUAL <br />- 4" SOLID PVC <br />SUBDRAIN PIPE <br />INFILTRATION TRENCH_ <br />NOT TO SCALE <br />1. INFILTRATION TRENCH TO BE CONSTRUCTED PER <br />SAN MATEO COUNTYWIDE WATER POLLUTION <br />PREVENTION PROGRAM (SMCWPPP) C.3 REGULATED <br />PROJECT GUIDE SECTION 6.4. <br />2. APPROVED PLANTS FOR INFILTRATION TRENCH ARE <br />PER APPENDIX A OF THE SMCWPPP C.3 <br />REGULATED PROJECTS GUIDE. <br />3. CONTRACTOR TO RIP BOTTOM OF TRENCH. <br />PLANTING IN TRENCH AREA <br />PER NOTE 2, THIS SHEET. <br />VIII=aI:, <br />fl <br />NATIVE SOIL <br />GEOTEXTILE FILTER FABRIC <br />(MIRAFI 700 OR EQUIVALENT) <br />I f' <br />�`- 4" PERFORATED <br />If PVC RISER <br />AGGREGATE ROCK LAYER <br />-_ 1.5" TO 2.5" DIAMETER <br />CAP 4" RISER PIPE AT <br />i% BOTTOM OF GRAVEL LAYER <br />BEDDING SAND <br />I N&VA Iff-il 1 10 <br />HIM <br />1793 ROSEMARY LANE <br />CITY OF REDWOOD CITY SAN MATEO COUNTY CALIFORNIA <br />DATE: AUGUST 19, 2020 SCALE: NOT TO SCALE <br />PAGE 2 OF 2 <br />lcb <br />SAN SACRAMENTO <br />(925)375-0322 <br />1877 <br />SACRAMENTO (916) 375-1877 <br />9 WWW CBANDG COM <br />CIVIL ENGINEERS • SURVEYORS • PLANNERS <br />F:A3085-000\REDWOOD CITY11793 ROSEMARY LMACAMEXHIBITSIXB-EXHIBIT B_O&M.DWG <br />ATTY/AGR.2020.220/SF19G, LLC (1793 Rosemary Lane) (Page 10 of 14) <br />