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WELL DETAILS <br /> PROJECT NUMBER 0805-15203 BORING/WELL NO VW-18 <br /> �JPROJECT NAME ARCO 6100 TOP OF CASING ELEV NA <br /> LOCATION25775 S Patterson Pass Road, Tracy. CA GROUND SURFACE ELEV NA <br /> EMCON WELL PERMIT NO 6395 DATUM Mean Sea Level <br /> INSTALLATION DATE 6/26/95 <br /> TOC (Top of casing) <br /> G-5 vault box (Std ) <br /> r.•. ,.,. g EXPLORATORY BORING <br /> a Total depth 80 0 ft <br /> b Diameter �_ in <br /> Drilling method hollow-stem allger <br /> e d h WELL CONSTRUCTION <br /> c Total casing length 73 0 ft <br /> Material <br /> • d Diameter 4 in <br /> a c e Depth to top perforations 435 ft <br /> i f Perforated length 292 ft <br /> Perforated interval from 43 5 to 727 ft <br /> Perforation type machine slot <br /> Perforation size 0 1-inch <br /> g Surface seal 1 0 ft <br /> Material concrete <br /> f I h Backfill 355 ft <br /> Material bentonite cement grout <br /> i Seal 35 ft <br /> Material 3/8" bentonite chips <br /> I Gravel pack 33 5 ft <br /> Gravel pack interval from 40 0 to 73 5 ft <br /> Material pea gravel <br /> k k Bottom seal/fill 65 ft <br /> b Material slou h <br /> • <br /> Form prepared by D. Foley <br />