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WELL CONSTRUCTION DETAIL <br /> M E C <br /> A Total Depth Of Boring 70 ft. <br /> H B Diameter Of Boring 8 in. <br /> �• <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 70 ft. <br /> F Material Schedule 40 PVC <br /> E Casing Diameter 2 in. <br /> F Depth To Top Perforations 67 ft. <br /> G Perforated Length 3 ft. <br /> J Perforated Interval From 67 to 70 ft. <br /> D Perforation Type Machine slotted <br /> Perforation Size 0.02 in. <br /> A _ H Surface Seal From 0 to f ft. <br /> Seal Material Concrete <br /> Backfill From 1 to 62 ft. <br /> Backfill Material Neat Cement <br /> J Seal From 62 to 66 ft. <br /> K Seal Material Bentonite <br /> G K Gravel Pack From 66 to 70 ft. <br /> Pack Material Lonestor #3 <br /> L Bottom Seal None ft. <br /> Seal Material <br /> . M Vault Box, Locking Well Cap, Lock <br /> L <br /> Note: Depths Measured From Initial Ground Surface. <br /> PROPOSED AIR SPARGE WELL CONSTRUCTION DETAIL FIGURE <br /> Getter - Ryan /nc. Tosco (Unocal) Service Station No. 6981 3 <br /> -- 3164 Gold Camp Drive, Suite 240 4707 Pacific Avenue J <br /> — Rancho Cordova, CA 95670 Stockton, California <br /> REVIEWED BY DATE REVISION DATE <br /> JOB NUMBER <br /> 02/99 <br /> 140124 <br />