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x <br /> OZONE SPARGE POINT CONSTRUCTION DETAIL <br /> ME A Total Depth of Boring 30 ft. <br /> C <br /> B Diameter of Boring 8 in. <br /> �-{ Drilling Method hollow stem auger <br /> C Top of Box Elevation ft. <br /> Referenced to Mean Sea Level <br /> �X Referenced to Project-Datum <br /> D Casing Length 27.5 ft. <br /> Material schedule 80 PVC <br /> I <br /> E Casing Diameter 0.75 in. <br /> F <br /> F Depth to Sparge Point 27.5 ft. <br /> G Sparge Point Length 30 in, <br /> D J H Surface Seal from surface to 1.5 ft. <br /> q Seal Material concrete <br /> V+ I 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 ft. <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 expandable well plug with Tosco lock. <br /> Note: Depths measured from initial ground surface. <br /> L <br /> B <br /> Proposed Ozone Sparge Point Construction Detail FIGURE <br /> Gettler - Ryan, lnC. Tosco Service Station No. 11195 <br /> i 6747 Sierra Ct.,Suile J (925)551-7555 16500 South Interstate 5 4 <br /> Dublin,CA 94568 <br /> Lathrop,California <br /> JOB NUMBER REVIEWED BY DATE REVISED DATE REVISED DATE <br /> 140193.14 Sep-02 <br /> i <br />