RecDoc 2022-009342 STMMA 2761 Ohio

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2-4" COBBLES AROUND BUBBLE UP GRATE BIORETENTION SOIL MIX PER SAN MATEO COUNTY WATER POLLUTION PREVENTION PROGRAM C.3 REGULATED PROJECTS GUIDE APPENDIX K. —I I 1-1 I l�i I I`—I i t-11 f—I I •' . � ;'�; ; '• ., -;; I f=1 I I• -� .: •- . �1lf,�Il�lIII��III!lI1f I�� w — ::E 0 I�III 4" SOLID PVC w SUBDRAIN PIPE Q S=1% MIN w I � Q - Ln 111= U-' �ISI II w -! 1 1= LLJ f- -� Of f—I ! -1 I I- BUBBLE UP 5" SQUARE GRATE NDS GRATE OR EQUAL 4" SOLID PVC SUBDRAIN PIPE 4" PERFORATED PVC PIPE TO DIFFUSE STORM WATER 11—I 1 1 1=�-1 (HOLES FACE DOWN) ! ! =�-I f 1-! !�II- I j�I= _F1 111 9�1„IIJ�lill�ltilillI l�lIII till X11111 PER SHEET GP -1 INFILTRATION TRENCH NOT TO SCALE NOTES: 1, INFILTRATION TRENCH TO BE CONSTRUCTED PER SAN MATEO COUNTYWIDE WATER POLLUTION PREVENTION PROGRAM (SMCWPPP) C.3 REGULATED PROJECT GUIDE SECTION 6.4. 2. APPROVED PLANTS FOR INFILTRATION TRENCH ARE PER APPENDIX A OF THE SMCWPPP C.3 REGULATED PROJECTS GUIDE. 3. CONTRACTOR TO RIP BOTTOM OF TRENCH. PLANTING IN TRENCH AREA PER NOTE 2, THIS SHEET. NATIVE SOIL GEOTEXTILE FILTER FABRIC (MIRAFI 700 OR EQUIVALENT) 4" PERFORATED PVC RISER AGGREGATE ROCK LAYER 1.5" TO 2.5" DIAMETER CAP 4" RISER PIPE AT BOTTOM OF GRAVEL LAYER BEDDING SAND EXHIBIT B 2761 OHIO AVENUE CITY OF REDWOOD CITY SAN MATEO COUNTY CALIFORNIA DATE: AUGUST 17, 2021 SCALE: NOT TO SCALE PAGE20F2 SAN RAMON '9251866-0322 cbg ISACRAMENTO (9 16 16 ) 375-18771877 W W W.CBAN.G.COM CIVIL ENGINEERS • SURVEYORS • PLANNERS F:13085-00OIREDWOOD CITY12761 OHIO AVE\ACAMEXHIBITSIXB-EXHIBIT B_0&M_2761 OHIO AVE.DWG ATTY/AGR.2021.320/SF21A, LLC (Page 10 of 13)