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MICROSPARGE POINT CONSTRUCTION DETAIL <br /> ME A Total Depth of Boring 30 ft <br /> C <br /> B Diameter of Boring 8 in <br /> H Drilling Method hollow stem auger <br /> C Top of Box Elevation ft <br /> ❑ Referenced to Mean sea Level <br /> EX Referenced to Protect-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 /> J M Surface Seal from surface to 15 ft <br /> q Seal Material concrete <br /> I Backfill from 1 5 to 25 ft <br /> Seal Material neat cement <br /> J Seat from 25 to 27 ft <br /> Seal Material hydrated bentonite <br /> K Sand Pack from 27 to 30 ft <br /> K Pack Material Lonestar#2/16 sand <br /> G =_ <br /> L Bottom Seal NA ft <br /> Seal Material NA <br /> M Traffic-rated, water-resistant, steel well box <br /> Locking expandable well plug with Tosco lock <br /> Note Depths measured from Initial ground surface <br /> L <br /> 8 <br /> Proposed Shallow Sparge Point Construction Details FIGURE <br /> Gettler - Ryan, Inc. Tosco Service Station No 11192 <br /> 6747 Sierra Ct Suite J (925)551-7655 1403 Country Club Boulevard 7 7 <br /> Dublin CA 94568 <br /> Stockton,California _ <br /> JOB NUMBER REVIEWED BY DATE REVISED DATE REVISED DATE <br /> 140245 48 May-02 <br />