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Monitoring Well Detail <br /> PROJECT NUMBER_ 1582G � - BORING/WELL NO. MW-4 <br /> PROJECT NAME Tri-Valley Thorton TOP OF CASING ELEV. 12.0' <br /> COUNTY San Joaquin CROUND SURFACE ELEV.. <br /> WELL PERMIT NO. 83-163 DATUM 10' @ MW-2 T.O.C. <br /> i <br /> i . <br /> '~a <br /> EXPLORATORY BORING <br /> a. Total depth 24 ft. <br /> E b. Diameter 8 in. <br /> Drifting method hollow stem auger <br /> •� d <br /> e WELL CONSTRUCTION <br /> c. Casing length 22.5 ft <br /> Material sch. 40 PVC Pipe <br /> • d. Diameter ?{n• <br /> a c e. Depth to top perforations --b—ft. <br /> ._. i <br /> f. Perforated length 16.5 fL <br /> Perforated interval fromzt 22-5to 6 ft. <br /> Perforation type machine slot <br /> 0.020 inch <br /> Perforation size <br /> r; <br /> g. Surface seal 1 ft. <br /> ' "r'•: Seal material concrete <br /> h. Backfill <br /> f <br /> •;"' ' r'•` Backfill material cement grout <br /> e4.•• <br /> L Seal ft. <br /> Seal material bentonite <br /> j. Cravel pack 118 ft. <br /> Pack material <br /> # 2/12 sand <br /> •:••. k. Bottom seal;;. <br /> k Seal material <br /> F-8--Christy-. box. locking - --- --- ----— =- <br /> b <br /> cover, padlock <br /> -- EXICELTECH <br />