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V <br /> 1 <br /> 100 Pine Street. 1Oth Floor <br /> San Francisco. CA 94111 . a <br /> (4151 434-8400 '• ` <br /> FAX (415] 434-1365t'i15� 'lj#reser <br /> q GEOMATRiX <br /> 18 November 1996 I'rdV T : -, <br /> Project C3499 96 prr'' <br /> 19 f <br /> i 10, 2Q <br /> � t - <br /> Mr. Mike Inform a <br /> San Joaquin County Public Health Services <br /> P.O. Box 388 <br /> Stockton, California 95201-0388 <br /> 1 <br /> .: Subject: .. F Well Destruction,Work Plan .. :�. <br /> Nicholaw Property <br /> San Joaquin County APN No. 238-080-02 <br /> Tracy, California <br /> Dear Mr. Infurna: <br /> ,k <br /> I This well destruction work plan has been prepared on behalf of Chevron Pipe Line Company <br /> (CPL), in response to your 6 November 1996 letter to CPL. In your letter you stated that no <br /> further investigation or remedial action is required, and that prior to certifying the site for <br /> closure, the monitoring wells at the site must be properly abandoned. CPL intends to destroy <br /> the three groundwater monitoring wells at the Nicholaw Property in accordance with San <br /> Joaquin County standards and under permit from your office'. Destruction will be accomplished <br /> by overdrilling the casing and annular fill materials,pulling the casing from the ground, and <br /> filling the boreholes with cement grout to within 3 feet of the surface. The upper 3 feet of each ; <br /> borehole will be filled with soil. i <br /> I We look forward to your approval of this work plan and the well destruction permits at your <br /> earliest opportunity. Please call either of the undersigned if you have any questions. <br /> Sincerely, _ - <br /> t <br /> I GEOMATRIX CONSULTANTS, INC. <br /> I , <br /> Michael R. Keim Dawn A. mo, C.E. <br /> Project Scientist Principal ydrogeol ist <br /> MRwDaz/nht <br /> C34991NCHDEST.D0C <br /> cc: Marty Blocs, Chevron Pipe Line Company <br /> Geomatrix Consultants, Inc. <br /> Engineers,Geologists.and Environmental Scientists <br />