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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 1I !rI <br />PROJECTS GUIDE APPENDIX K. <br />BUBBLE UP <br />5" SQUARE GRATE NDS <br />GRATE OR EQUAL <br />4" SOLID PVC/- PLANTING IN TRENCH AREA <br />SUBDRAIN PIPE / PER NOTE 2, THIS SHEET. <br />ME <br />_ i� <br />SOLID PVC <br />:DR LUi <br />w <br />all <br />w s <br />w r� <br />' l <br />4" PERFORATED PVC PIPE <br />TO DIFFUSE STORM WATER I 11= I I-_ <br />(HOLES FACE DOWN) -1{ f j jI I=1 <br />-III ;IIIl,[,llIIy,II�l I IIiI);,„ �I! <br />PER SHEET GP -1 <br />INFILTRATION TRENCH <br />NOT TO SCALE <br />NOTES: <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 />NATIVE SOIL <br />WGEOTEXTILE FILTER FABRIC <br />7j(MIRAFI 140 OR EQUIVALENT) <br />4" PERFORATED <br />PVC RISER <br />AGGREGATE ROCK LAYER <br />1.5" TO 25' DIAMETER <br />CAP 4" RISER PIPE AT <br />BOTTOM OF GRAVEL LAYER <br />BEDDING SAND <br />EXHIBIT B <br />624 MYRTLE STREET <br />CITY OF REDWOOD CITY SAN MATEO COUNTY CALIFORNIA <br />DATE: NNE 21, 2022 SCALE: NOT TO SCALE <br />PAGE 2 OF 2 <br />C b SAN SACRAMENTO <br />(925) 375-0322 <br />1877 <br />SACRAMENTO (916) 375-1877 <br />WW W.CBANDO.COM <br />CIVIL ENGINEERS • SURVEYORS • PLANNERS <br />F:13085-00MREDWOOD CITY1624 MYRTLE STIACADIEXHIBITSVB-EXHIBIT B_0&M_624 MYRTLE.DWG <br />ATTY/AGR.2022.360/SF21G LLC (Page 10 of 13) <br />