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WELL CONSTRUCTION DETAIL <br /> - <br /> M C A Total Depth of Boring 20 ft. <br /> B Diameter of Boring 8 in. <br /> H Drilling Method Hollow Stem Auger <br /> C Top of Box Elevation ft. <br /> MX Referenced to Mean Sea Level <br /> Referenced to Project-Datum <br /> D Casing Length 20 ft. <br /> Material PVC <br /> F E Casing Diameter 2 in. <br /> F Depth to Top Perforations 5 ft. <br /> G Perforated Length 15 ft. <br /> Perforated interval from 5 to 20 ft. <br /> Perforation Size 0.02 in. <br /> � J <br /> H Surface Seal from 0 to 1 ft. <br /> A Seal Material Concrete <br /> I Backfill from 1 to 3 ft. <br /> _ Seal Material Neat Cement <br /> J Seal from 3 to 4 ft. <br /> Seal Material Bentonite <br /> K K Gravel Pack from 4 to 20 ft. <br /> G = Pack Material Lonestar#3 <br /> L Bottom Seal None ft. <br /> Seal Material None <br /> M <br /> Note: Depths measured from initial ground surface. <br /> L <br /> 8 <br /> WELL CONSTRUCTION DETAIL FIGURE <br /> Gettler - Ryan, Inc. Tosco(Former BP)SS#11195 <br /> 6747 Sierra Cl.,Suhe J (925)551-7555 16500 South Interstate-5 3 <br /> Dublin,CA 94568 Lathrop,California <br /> JOB NUMBER REVIEWED BY DATE REVISED DATE REVISED DATE <br /> 140193.12 4116102 <br />