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al <br /> Y <br /> SPARGE POINT CONSTRUCTION DETAIL <br /> ME A Total Depth of Boring 3001 ft <br /> C <br /> 6 Diameter of Boring B in <br /> }� Drilling Method hollow stem auger.. <br /> C Top of Box Elevation ft <br /> Referenced to Mean Sea Level <br /> Referenced to Project-Datum <br /> D Casing Length 275 ft <br /> Material schedule 80 PVC <br /> I <br /> E Casing Diameter 075 in <br /> F <br /> F Depth to Sparge Point 275 ft <br /> G Sparge Point Length 30 in <br /> D H Surface Seal from surface to 1 5 ft <br /> A Seal Material concrete <br /> 1 <br /> 1 Backfill from 1 5 to 25 ft <br /> Seal Material neat cement <br /> J Seal from 25 to 27 ft <br /> Seal Material hydrated bentonite <br /> K Sand Pack from 27 to 30 It <br /> K Pack Material Lonestar#2116 sand <br /> G <br /> L Bottom Seal NA ft <br /> Seal Material NA <br /> M Traffic-rated,water-resistant, steel well box <br /> Locking ex andable well plug with Tosco lock <br /> Note Depths measured from initial ground surface <br /> L <br /> 7MB <br /> Gentler - Ryan Inc. Proposed Shallow Sparge Point Construction Details FIGURE <br /> • � Tosco Service Station No 11192 <br /> 6747 Sierra Gt Suite J (925)551 7555 1403 Country Club Boulevard 6 <br /> Dublin CA 94568 <br /> Stockton California <br /> JOB NUMBER REVIEWED BY DATE REVISED DATE REVISED DATE <br /> 140245 08 3102 <br />