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WELL CONSTRUCTION DETAIL <br /> f <br /> E A Total Depth of Boring 90 ft. <br /> e M C B Diameter of Boring 8 in. <br /> Drilling Method hollow-stem auger <br /> C Top of Casing Elevation ft. <br /> Referenced to Mean Sea Level <br /> Referenced to Project-Datum <br /> D Casing Length 90 ft. <br /> l Material Schedule 40 PVC <br /> E Casing Diameter 2-inch in. <br /> F F Depth to Top Perforations 85 ft. <br /> l G Perforated Length 5 It. <br /> Perforated Interval from 85 to 90 ft. <br /> I Perforation Size 0.02 in. <br /> I H Surface Seal from 0 to 1.5 ft. <br /> D <br /> .I Seal Material concrete <br /> I <br /> A I Backfill from 1.5 to 78 ft. <br /> Backfill Material neat cement <br /> J Seal from 78 to 83 ft. <br /> Seal Material bentonite <br /> K Gravel Pack from 83 to 90 ft. <br /> Pack Material Lonestar#3 Sand <br /> K L Bottom Seal none ft. <br /> G = Seal Material <br /> M flush mounted water resistant well box, <br /> locking well cap and lock. <br /> Note: <br /> I L <br /> B <br /> I <br /> Proposed Well Construction Detail FIGURE <br /> G ETTLER- f'7p YAN, I NC. Former Unocal Service Station#2859 <br /> 8747 Sierra Ct.,Suite J J925)551-7555 1665 Pacific Avenue 4 <br /> Dublin,CA 945$8 Stockton, California <br /> JOB NUMBER REVIEWED BY DATE REVISED DATE REVISED DATE <br /> 240072.05 <br />