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100 pine Street, I oth Fleor �;'.t���.:�'; 4� C`� <br /> San Francisco. CA 941 1 _� `'� lE#; raj GEOMATRIX <br /> (415] 434-5400 FAX C4151 434-1365 <br /> 8 April 1997 <br /> Project C3499 <br /> { <br /> Mr. Mike Infurna <br /> San Joaquin County Public Health Services <br /> P.O. Box 388 <br /> Stockton, CA 95201-0388 <br /> Subj ect: Well Destructions <br /> Nicholaw Property <br /> San Joaquin County APN No. 238-080-02 <br /> Tracy, California _ <br /> Dear Mike: 4 <br /> On behalf of Chevron Pipe Line Company (CPL), and to comply with your 6 November 1996 <br /> letter to CPL, Geomatrix Consultants, Inc., oversaw the destruction of three monitoring wells <br /> at the subject site on 7 April 1997, The destructions were performed by Gregg Drilling and <br /> Testing, Inc., under permit from your office. Destruction was accomplished by overdrilling <br /> �i. the casing and annular fill materials, pulling the casing &Ai the 'ground, filling the boreholes <br /> to within.3 feet of the ground surface with bentonite chips;;hydra ting the bentonite, and filling <br /> the upper 3 feet of the borehole with soil. <br /> It is our.-understanding-that.the completion of the well'destructions, along with the submittal of <br /> a soil management plan for the site, fulfill the closure requirements for the site. Please call me <br /> or Dawn Zemo if you have any questions. <br /> Sincerely, <br /> GEOMATRIX CONSULTANTS, INC. <br /> Mike Keim <br /> Project Scientist <br /> MK/ell <br /> 0499UINFURNA.DOC <br /> {f; cc:= ••-'Ms.Katie Hower, Chevron Pipe.Line.Company.. <br /> 1i - ik t � Y�".- t .Y' ..� it r ='E ,r r E-•• [t M'.�5,-' r fa rz r?+ -• - r- <br /> ,':a" <br /> Geomatrix Consultants, Inc. <br /> Engineers.Geologists,and Environmental Scientists <br />