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WELL DETAILS <br /> PROJECT NUMBER 0805-15203 BORING/WELL NO VW-20 <br /> �JPROJECT NAME ARCO 6100 TOP OF CASING ELEV NA <br /> LOCATION25775 S Patterson PassRoad, Tracy, CA GROUND SURFACE ELEV NA <br /> EMCON WELL PERMIT NO 6395 DATUM Mean Sea Level <br /> INSTALLATION DATE 7/6/95 <br /> TOC (Top of casing) <br /> G-5 vault box (Std ) <br /> g EXPLORATORY BORING <br /> r r r <br /> a Total depth 83 0 ft <br /> b Diameter 8 in <br /> Drilling method hollow-stem auaer <br /> e d h WELL CONSTRUCTION <br /> c Total casing length 785 ft <br /> Material Sch 40 PVC <br /> d Diameter 4 in <br /> a c e Depth to top perforations 485 ft <br /> I f Perforated length 300 ft <br /> Perforated interval from 485 to 785 ft <br /> Perforation type machine slot <br /> Perforation size 0 1-inch <br /> g Surface seal 1 0 ft <br /> Material _ concrete <br /> f 1 h Backfill 430 ft <br /> Material bentonite cement grout <br /> i Seal 30 ft <br /> Material 3/8" bentonite ch!2s <br /> Gravel pack 31 5 ft <br /> Gravel pack interval from 47 0 to 785 ft <br /> Material___ pea gravel^ <br /> k Bottom seal/fill 45 ft <br /> k <br /> I- b Material s� lough <br /> Form prepared by. <br />