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SDCO OVERFLOW DRAIN TOP OF OVERFLOW DRAIN 1' <br />SILVA CELLS /—(BEYOND) 42 <br />SILVA CELL <br />NOTES <br />BOTTOM OF SILVA CELLS <br />SILVA CELL UNIT <br />3.0' TYP <br />CITY STANDARD D8 <br />STORM DRAIN INLET <br />FILL LINE -i <br />SILVA CELL <br />DISTRIBUTION HEADER <br />W/ INLET PIPE <br />CONCRETE SIDEWALK <br />— OVER AGG BASE, SC <br />COVER <br />1.0' j <br />POST 12" DEPTH DRAIN ROCK POND <br />CALTRANS CLASS II '' <br />PERMEABLE PLACED ON FBIboNATIVE SOIL @ 95% R.C. OIL <br />(2) 2" DIA. HOLES IN BASE J/ <br />TO ALLOW FOR EXFILTRATION <br />SILVA CELL SUBDRAIN IN GRAVEL <br />BASE FILL W/ CLEANOUT <br />SILVA CELL PERMEABLE GEO TEXTILE <br />N.T.S. 1.0' STORAGE LAYER <br />I� SILVA CELL SYSTEM (DECK, BASE, AND <br />�I POSTS). <br />18" TREATMENT SOIL, INFILTRATION RATE <br />5 TO 10 IN/HR (FOR TREATMENT SOIL <br />E SPECIFICATION, SEE APPENDIX K IN <br />SMCWPPP C3 STORMWATER HANDBOOK <br />DATED JUNE 2016). <br />12" DRAIN ROCK (CLASS II PERMEABLE <br />�F MATERIAL PER CALTRANS STANDARD <br />SPECIFICATIONS, SECTION 68-2.02F). <br />STORM DRAIN CLEANOUT. CHRISTY TYPE <br />F08 BOX WITH F08R LID MARKED STORM <br />GEOGRID, ATTACH TO CELL FRAMES WITH <br />CABLE TIES. <br />11 CABLE TIES, ATTACHING GEOGIRD TO <br />SILVA CELL LEG. <br />® 1"-4" (25 MM -100 MM) SPACING <br />BETWEEN SILVA CELLS AT BASE. <br />4" (100 MM) MIN AGGREGATE SUB CASE, <br />® COMPACTED TO 95% RELATIVE <br />COMPACTION. <br />GEOTEXTILE (MIRAFI 140N OR APPROVED <br />EQUAL), TO PROVIDE SEPARATION <br />BETWEEN SUBGRADE AND AGGREGATE <br />BASE. <br />SUBGRADE, COMPACTED TO 95% RELATIVE <br />COMPACTION. <br />PIN, PER SILVA CELL SPECIFICATIONS, TO <br />�U KEEP CELLS IN PLACE DURING <br />CONSTRUCTION. <br />OVERFLOW DRAIN. NDS IN—LINE GRATE <br />PLACED 6" MIN ABOVE BIO—MEDIA SOIL <br />MIX.. <br />EXHIBIT B5 <br />(DTALLJS STORM WATER MAINTENANCE AGREEMENT <br />ENGINEERING I PLANNING I DEVELOPMENT SILVA CELL TREATMENT: M-1, M-2, M-3 & E-4 <br />Job No.: 18190 Date: 01/19/22 Sheet: 05 of 06 <br />ATTY/AGR.2022.072/STMMA (Page 15 of 23) <br />GEOTEXTILE (MIRAFI 140N OR APPROVED <br />G� <br />EQUAL) TO KEEP AGGREGATE FROM <br />MIGRATING DOWN THROUGH CELL DECK. <br />CLASS II AGGREGATE BASE COURSE, <br />DEPTH VARIES ACROSS SECTION. <br />PEDESTRIAN SIDEWALK, SEE LANDSCAPE <br />PLANS FOR LAYOUT & DETAILS. <br />L/ <br />6" PERFORATED DISTRIBUTION PIPE. <br />a' <br />CALTRANS CLASS 2 DRAIN ROCK. <br />°L <br />8" PERFORATED COLLECTOR PIPE. <br />STORM DRAIN CLEANOUT. CHRISTY TYPE <br />F08 BOX WITH F08R LID MARKED STORM <br />GEOGRID, ATTACH TO CELL FRAMES WITH <br />CABLE TIES. <br />11 CABLE TIES, ATTACHING GEOGIRD TO <br />SILVA CELL LEG. <br />® 1"-4" (25 MM -100 MM) SPACING <br />BETWEEN SILVA CELLS AT BASE. <br />4" (100 MM) MIN AGGREGATE SUB CASE, <br />® COMPACTED TO 95% RELATIVE <br />COMPACTION. <br />GEOTEXTILE (MIRAFI 140N OR APPROVED <br />EQUAL), TO PROVIDE SEPARATION <br />BETWEEN SUBGRADE AND AGGREGATE <br />BASE. <br />SUBGRADE, COMPACTED TO 95% RELATIVE <br />COMPACTION. <br />PIN, PER SILVA CELL SPECIFICATIONS, TO <br />�U KEEP CELLS IN PLACE DURING <br />CONSTRUCTION. <br />OVERFLOW DRAIN. NDS IN—LINE GRATE <br />PLACED 6" MIN ABOVE BIO—MEDIA SOIL <br />MIX.. <br />EXHIBIT B5 <br />(DTALLJS STORM WATER MAINTENANCE AGREEMENT <br />ENGINEERING I PLANNING I DEVELOPMENT SILVA CELL TREATMENT: M-1, M-2, M-3 & E-4 <br />Job No.: 18190 Date: 01/19/22 Sheet: 05 of 06 <br />ATTY/AGR.2022.072/STMMA (Page 15 of 23) <br />