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WELL DETAILS <br /> PROJECT NUMBER 0805-152 03 BORING/WELL NO.YVJ-20 <br /> PROJECT NAME ARCO 6100 TOP OF CASING ELEV NA <br /> U LOCATION 25775 Patterson Pass Road,Tracy. CA GROUND SURFACE ELEV Nom. <br /> EMCON WELL PERMIT NO 6395 DATUM Mean Sga Lexel <br /> INSTALLATION DATE zw5 <br /> TOC (Top of casing) <br /> G-5 vault box(Std ) <br /> % ,f, % s EXPLORATORY BORING <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 78 5 ft <br /> Material Sch 40 PVC <br /> d Diameter 4 in <br /> a c e Depth to top perforations 48.5 ft <br /> f. Perforated length 300 ft <br /> SS + Perforated interval from 48 5 to 785 ft <br /> til i t r <br /> Perforation type machine slot <br /> Perforation size 0 1-inch <br /> t g Surface seal 10 ft <br /> 7 S <br /> S sr S SSS Material nerete <br /> 7 t 1S <br /> fS S <br /> S`sS S ' 1 h Backfill 43.0 ft <br /> S <br /> ti Material bentonite cement grout___ <br /> 7 Sr <br /> itis Sj`r` i I Seal 30 ft <br /> 7S7 7 t <br /> t <br /> s Material_ 318" bentonite chips_ <br /> s tir r rr r <br /> t,s7 j Gravel pack 315 It <br /> SSS S r Sr ' Gravel pack interval from_j7 7 0 to 785 ft <br /> S7t <br /> s <br /> Material pea gravel <br /> k Bottom seal/fill 45 ft <br /> k <br /> Material slough <br /> b .. _. <br /> low— <br /> Form prepared by C- Avila <br />