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WELL CONSTRUCTION DETAIL <br /> E . <br /> M CIL <br /> Total Depth of Boring 25 ft <br /> B Diameter of Bonng 10 in <br /> H Drilling Method Hollow-stem auger <br /> C Top of Box Elevation ft <br /> ElReferenced to Mean Sea Level <br /> 11 Referenced to Project-Datum <br /> D Casing Length 25 ft <br /> Material Schedule 40 PVC <br /> F E Casing Diameter 4 in <br /> F Depth to Top Perforations 15 ft <br /> G Perforated Length 10 ft <br /> Perforated Interval from 15 to 25 ft <br /> Perforation Size 002 In <br /> L) J <br /> H Surface Seal from 0 to 15 ft <br /> '4 Seal Matena Concrete <br /> — I Backfill from is to 12 ft. <br /> Seal Matena Neat Cement <br /> J Seal from 12 to 14 ft <br /> Seal Matena Bentonite <br /> K K Gravel Pack from 14 to 25 ft <br /> G = Pack Matena Lonestar#3 Sand <br /> L Bottom Seal None ft <br /> Seal Matena <br /> M Vault box, locking well cap, and lock <br /> Note Depths measured from initial ground surface <br /> L <br /> B <br /> Proposed Vapor Extraction Well Construction Detail FIGURE <br /> Gettler - Ryan, Inc. Fourier Unocal Station#0187 <br /> 6747 Siena Ct Suite J (825)551-7555 437 East Miner Avenue 7 <br /> Dublin CA 945W Stockton,California <br /> JOB NUMBER REVIEWED BY DATE REVISED DATE REVISED DATE <br /> 240042 Sep-00 <br />