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100 Pine Street, 10th Floor <br /> San Francisco, CA 94111 <br /> C415) 434-9400 • FAX C415) 434-1365 GEOMATRIX <br /> 1 November 1996 <br /> Project C2677 <br /> Mr. Mike Infurna E G E I V"E D <br /> San Joaquin County Public Health Services <br /> P.O. Box 388 NOV 0 g 1996 <br /> Stockton, California 95201-0388 <br /> - ENVIRONMENTAL HEALTH <br /> Subject: Well Destruction Work Plan PERMIT/SERVICES <br /> Dividend Property <br /> Tracy, California <br /> Dear Mr. Infurna: <br /> As you know, in a I I October 1996 letter to Chevron Pipe Line Company (CPL),the Regional <br /> Water Quality Control Board, Central Valley Region(RWQCB), granted closure of the <br /> Dividend Property in Tracy, California. Now that the wells are no longer,required for <br /> monitoring, CPL intends to destroy all groundwater monitoring wells at the Dividend Property. <br /> The wells will be destroyed in accordance with San Joaquin County standards and under permit <br /> from your office. Destruction will be accomplished by overdrilling the casing and annular fill <br /> materials, pulling the casing from the ground, and filling the boreholes with cement grout to <br /> within 3 feet of the surface. The upper 3 feet of each borehole will be.filled with soil. <br /> 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 /> I <br /> GEOMATRIX CONSULTANTS,INC. <br /> • _ i <br /> Michael R. Kelm Dawn A.: e C. .G. <br /> Project Scientist Principal'Ii drogeolo ist p <br /> MRK/DAZ/cll <br /> C2677\DIVDEST.D0C <br /> • <br /> Geomatrix Consultants, Ino. <br /> Engineers,Geologists,and Environmental Scientists <br /> • i <br />