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-*YELL DETAILS <br /> ® Encon PROJECT MMM 0805-142.02 BORINGAVELL NO. VW-12 <br /> PROJECT NAME ARCO 760 TOP OF CASING ELEV. 54.5' <br /> LOCATION 255 CHEROKEE LANE GROUND SURFACE ELEV. - 2- 55' <br /> LODI CA DATUM M AN SEA EVE <br /> MYELL PERMIT N0. 6076 INSTALLATION DATE— <br /> TOC (Top of casing) <br /> G-5 vault box (Std.) <br /> • 9 <br /> EXPLORATORY BORING <br /> • f a. Total depth 60.0 ft. <br /> b. Diameter 10 in <br /> Drilling method HOLLOW–STEM AUGER <br /> d WELL CONSTRUCTION <br /> e <br /> h c. Total casing length 44.5 ft. <br /> Material SCH 40 PVC <br /> d. Diameter 4 in <br /> e. Depth to top perforations 19.9 ft. <br /> f Perforated length 24.1 ft. <br /> C <br /> i Perforated interval from 19.9 to 44.0 ft. <br /> Perforation type MACHINE SLOT <br /> Perforated size 0.1—INCH <br /> a g. Surface seal 0.75 ft <br /> S401 material CONCRETE <br /> h• Backfill 13.4 ft <br /> f Backfill material BENTONITE CEMENT GROUT <br /> J <br /> •`�•.• <br /> I. Seal <br /> 3.0 ft <br /> Seal material _ 3/8" BENTONITE CHIPS <br /> J Gravel pack 26.1 ft <br /> Pack material PEA GRAVEL <br /> ' k• Bottom seal 5.0 ft <br /> Seal material 3/9-BENTONITE CHIPS <br /> k I• Backfill 7.0 ft <br /> Backfill material PEA GRAVEL <br /> M. Bottom seal 3.0 ft <br /> I <br /> Seal material SLOUGH <br /> b> _ <br /> M <br /> a <br /> C <br />