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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 />4" SOLID PVC <br />w SUBDRAIN PIPE <br />a S=1% MIN <br />r <br />I � <br />o i <br />w <br />4" PERFORATED PVC PIPE <br />TO DIFFUSE STORM WATER <br />(HOLES FACE DOWN) <br />NOTES: <br />BUBBLE UP <br />F 5" SQUARE GRATE NDS <br />GRATE OR EQUAL <br />4" SOLID PVC <br />SUBDRAIN PIPE <br />III ISI <br />PER SHEET GP -1 <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 />SEE NOTE 2, THIS SHEET. <br />NATIVE SOIL <br />OTEXTILE FILTER FABRIC <br />IRAFI 700 OR EQUIVALENT) <br />4" PERFORATED <br />PVC RISER <br />AGGREGATE ROCK LAYER <br />1.5" TO 2.5" DIAMETER <br />CAP 4° RISER PIPE AT <br />BOTTOM OF GRAVEL LAYER <br />BEDDING SAND <br />EXHIBIT B <br />751 RUBY STREET <br />CITY OF REDWOOD CITY SAN MATEO COUNTY CALIFORNIA <br />DATE: OCTOBER 15, 2020 SCALE: NOT TO SCALE <br />PAGE 2OF2 <br />F:13085-000\REDWOOD CITYV81 RUBY STIACADIEXHIBITSM-EXHI BIT B_0&M.DWG <br />ATTY/AG R.2020.308/SF20A, LLC (Page 10 of 14) <br />(925) 866-0322 <br />®SAN <br />SACRAMENTO (916)375-1871 <br />NN ,G. NDG.CGM <br />CIVIL ENGINEERS <br />• SURVEYORS - PLANNERS <br />F:13085-000\REDWOOD CITYV81 RUBY STIACADIEXHIBITSM-EXHI BIT B_0&M.DWG <br />ATTY/AG R.2020.308/SF20A, LLC (Page 10 of 14) <br />