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2-4° COBBLES AROUND <br />BUBBLE UP GRATE <br />MULCH OR WOOD CHIPS <br />PER LANDSCAPE PLANS <br />o) 4" SOLID PVC <br />w SUBDRAIN PIPE <br />=1P :-1 <br />4" PERFORATED PVC PIPE <br />TO DIFFUSE STORM WATER <br />(HOLES FACE DOWN) <br />NOTES: <br />BUBBLE UP <br />5 SQUARE GRATE NDS <br />GRATE OR EQUAL <br />4" SOLID PVC <br />SUBDRAIN PIPE <br />i <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 />NATIVE SOIL <br />GEOTEXTILE FILTER FABRIC <br />(MIRAFI 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 />1219 FAIRVIEW AVENUE <br />CITY OF REDWOOD CITY SAN MATEO COUNTY CALIFORNIA <br />DATE: AUGUST 17, 2020 SCALE: NOT TO SCALE <br />PAGE20F2 <br />F:13085-000\REDWOOD CITV219 FAIRVIEW AVEIACADIEXHIBITSIXB-EXHIBITS OMJDWG <br />ATTYIAGR.2020.2737SF19A LLC (Page 10 of 13) <br />(925)866-0322 <br />7cbg]SAN <br />SACRAMENTO (916) 375-1877 <br />www.canNoc.coM <br />CIVILENGINEERS <br />• SURVEYORS - PLANNERS <br />F:13085-000\REDWOOD CITV219 FAIRVIEW AVEIACADIEXHIBITSIXB-EXHIBITS OMJDWG <br />ATTYIAGR.2020.2737SF19A LLC (Page 10 of 13) <br />