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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 I I=1 11=111. <br />- - <br />=1 11= <br />CD <br />4" SOLID PVC <br />SUBDRAIN PIPE <br />Q S=1% MIN <br />o I - <br />L6 <br />;1111; <br />4" PERFORATED PVC PIPE <br />TO DIFFUSE STORM WATER <br />(HOLES FACE DOWN) <br />BUBBLE UP <br />5" SQUARE GRATE NDS <br />GRATE OR EQUAL <br />4" SOLID PVC <br />Zl- <br />SUBDRAIN PIPE <br />N <br />1=11 I -I i I III -f i i=1 f 1=[ 1 i=1 1111-1 I r <br />`+ I 11i11111111111ii1 lllIiiIIIIIIIi- <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 />1 3. CONTRACTOR TO RIP BOTTOM OF TRENCH. <br />PLANTING IN TRENCH AREA <br />PER NOTE 2, THIS SHEET. <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 />153 MYRTLE STREET <br />CITY OF REDWOOD CITY SAN MATEO COUNTY CALIFORNIA <br />DATE: SEPTEMBER 4, 2020 SCALE: NOT TO SCALE <br />PAGE 2 OF 2 <br />Cb <br />SAN (925)866-0322 <br />SACRAMENTO (91616) 375-1677 <br />W W W. CBANDG.COM <br />CIVIL ENGINEERS • SURVEYORS • PLANNERS <br />F:13085-000\REDWOOD CITY1153 MYRTLE STIACADIEXHIBITSIXl3-EXHI8IT B_0&M.DWG <br />ATTY/AGR.2020.210/SF19G, LLC (153 Myrtle St) (Page 10 of 14) <br />w <br />�i=1 <br />� <br />i=1 <br />�IIl� <br />w <br />4" PERFORATED PVC PIPE <br />TO DIFFUSE STORM WATER <br />(HOLES FACE DOWN) <br />BUBBLE UP <br />5" SQUARE GRATE NDS <br />GRATE OR EQUAL <br />4" SOLID PVC <br />Zl- <br />SUBDRAIN PIPE <br />N <br />1=11 I -I i I III -f i i=1 f 1=[ 1 i=1 1111-1 I r <br />`+ I 11i11111111111ii1 lllIiiIIIIIIIi- <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 />1 3. CONTRACTOR TO RIP BOTTOM OF TRENCH. <br />PLANTING IN TRENCH AREA <br />PER NOTE 2, THIS SHEET. <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 />153 MYRTLE STREET <br />CITY OF REDWOOD CITY SAN MATEO COUNTY CALIFORNIA <br />DATE: SEPTEMBER 4, 2020 SCALE: NOT TO SCALE <br />PAGE 2 OF 2 <br />Cb <br />SAN (925)866-0322 <br />SACRAMENTO (91616) 375-1677 <br />W W W. CBANDG.COM <br />CIVIL ENGINEERS • SURVEYORS • PLANNERS <br />F:13085-000\REDWOOD CITY1153 MYRTLE STIACADIEXHIBITSIXl3-EXHI8IT B_0&M.DWG <br />ATTY/AGR.2020.210/SF19G, LLC (153 Myrtle St) (Page 10 of 14) <br />