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HLA SACRAMENTO <br /> _ lih©os <br /> Monitoring Well Detail <br /> PROJECT NUMB ER?582G 84RINC/WELI. NO <br /> MW-1�----� <br /> PROJECT NAA ' Tri-Valley/Thornton <br /> TOP OF' CASING ELEV.�„, <br /> CfJUNTY San Joaquin <br /> 9•„71 <br /> WELL PERMIT NO, 87-2966 GROUND SURFAa ELEV.DATUM Arbitrary, MW-2 <br /> top cassngse a lo.ofl <br /> a. <br /> *- s ExPLORA_ TORY BORING <br /> a. Total depth 25.5 ft <br /> b. Diameter 7.5 in. <br /> Drilling method hollow stern auger <br /> d <br /> e WELL CONSTRUCTL42E <br /> C. Casing length 2-_5 tt <br /> Materlal sch 40 PVc <br /> d. Diameter 2 �, <br /> a c e. Depth to top perforations 10,ft. <br /> i f. Perforated length 1 .....ft <br /> .,;,.•• Perforated interval from 2S 10 'ft + <br /> Perforation type machine slot <br /> •MSS r.,+:'_ <br /> .• : .� Perforation size 0.02 in. <br /> g. Surface seal 1 Z-0 ft- ? l <br /> •;t;; ;';�•`' Seal material concrete <br /> ..•:.' .ti..; h. Backfill (5-1 ft . ) 4 <br /> •:'S =:gip Batkf8l material grout cement <br /> • ;.;' <br /> I. Sea! (9-5 ft. ) 4 <br /> _.�..._.ft. <br /> bentonite pellets <br /> Sea! materia! <br /> J. Gravel pack (25-9 ft . 16 <br /> • ••: :r:�•: Pack material #2112 sand <br /> 'r•-" k. Bottom seal ft <br /> k Seal material A <br /> b I. F-8 Christy box,,____locking <br /> cover, ,lock <br /> "CUTCH <br />