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® KEY NOTES <br />r ,..fi AM <br />f• i <br />IVE • ROJ-BOX WITH <br />THREADS <br />FLAT. GC TO INSTALL <br />T POSITION <br />AVEL BACKFILL TYP <br />'ROVED <br />IATE) <br />ND CORD GR' <br />Ir -... l SEIJSOC <br />'P RISER PIPE <br />ftlifiki` r <br />)RD <br />F CUT) <br />R SPEC <br />TANK WALL <br />FITIAL SPACE <br />ANK WALL <br />ANNULAR SPACE <br />RISER AND SENSOR SECTION <br />1 /2"=1'-0" <br />10 D A 209 000 GALLON SPLIT TANK SECTION <br />1 /4"=1'-0" <br />GRAVEL SACKFILL TYP <br />APPROVED ALTERNATE) <br />MIN MIN MIN MIN MIN MIN <br />10' D A UNDERGROUND STORAGE TANK SECTION <br />1 /4"=1'-0" <br />10' D I A 20,000 GALLON TANK SECTION <br />1 /4"=1'-0" <br />FOR TOS ELEVATIONS. ALL MANHOLES WITHIN <br />THE TANK SLAB AREA TO BE RAISED ABOVE <br />NORMAL GRADE OF CONCRETE. SLOPE CONCRET <br />TO MANHOLES 1/4" PER - CROWN CONCRETE A <br />WATERTO NOT INHIBIT DRAINAGE OFF THE TANK <br />SLAB ;! O <br />GEOTECH FABRIC MATERIAL TO EXTEND 60" <br />MINIMUM PAST THE TANK HOLE EXCAVATION. ALL <br />GEOTECH FABRICMATERIAL •BPINNED Pfr <br />TO BACKFILLING. METHOD OF A:r A <br />f OF EXCAVATION TO 1 APPROVED BY THE <br />CONSTRUCTION <br />MOH STRAP ANCHOR SYSTEM SUPPLIED BY TANK <br />MANUFACTURER. PER <br />MANUFACTURER'S INSTALLATION INSTRUCTIONS. <br />FOR •PE, FOLLOW CURRENT OSHA <br />a. <br />REGULATIONS. IF SHEET PILES ARE UTILIZED, <br />PROVIDE 4CLEARANCE' <br />TANKS• SHORING. <br />© <br />BURIALDEPTH THAN i <br />7—ELEVEN AND MANUFACTURER'S APPROVAL. <br />UNDISTURBED SOIL OR COMPACTED BACK FILL <br />NOT LESS THAN 95% OF MODIFIED PROCTOR <br />DENSITY (AASHTO—T-180). <br />EL SACKFILL TYP <br />)VED ALTERNATE) <br />I 07MIKIM Ro <br />• <br />s <br />00 <br />0 <br />,'_ <br />i i <br />zw <br />- —E <br />le <br />'7a <br />Et% l <br />} <br />t' v� % 44 13 r tt = <br />.gym <br />1 � { <br />