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83 WEST MARCH LANE <br /> SUITE 12 November 22, 1991 <br /> STOCKTON,CA 95207 <br /> sin PHONE:(209)476-1635 <br /> WGEFr. DESIGNERS/CONSULTANTS <br /> Mr. Theodore Wittmayer <br /> Attorney at Law <br /> Stone Brothers and Associates 925,26 <br /> 1024 West Robinhood Drive <br /> Stockton, CA 95207 <br /> Subject: Suggested Scope of Tank Site Investigation MQ�19 4j <br /> Montgomery Ward Auto Center, Stockton, California RfC[IVE� <br /> ( w <br /> Dear Mr. Wittmayer, s y <br /> Per our discussion during the meeting November 13, 1991, the following issue bwbUj <br /> addressed in your letter to Montgomery Ward: <br /> 1. The investigation 'roposed by Montgomery Ward's contractor, Environmental Audit, <br /> needs to focus specifically on defining the lateral and vertical extent of gasoline compound <br /> presence related to the former underground storage tank (UST) location. <br /> This should include investigation of the compound extent in soil and should also address <br /> the possibility that gasoline compounds have reached groundwater. If a groundwater <br /> investigation is not proposed, sufficient rationale should be offered as to wh such an <br /> investigation is not needed. <br /> 2. The concrete slab which remains buried beneath the former UST location saould be <br /> removed and disposed of, and soil samples should be collected from beneath the slab. <br /> This procedure is generally required by the San Joaquin County EnvironmentO Health <br /> Division (EHD) before site closure can be considered. <br /> 3. The fuel product piping which remains buried beneath the parking lot on the west side <br /> of the Montgomery Ward Auto shop should be removed and disposed of properly. This <br /> is a requirement of the Tri-Regional Board Staff Recommendations for Preliminary <br /> Evaluation and Investigation of Underground Tank Sites ("Tri-Regional Guidelines") <br /> published by the State of California, dated August 10, 1990. <br /> it has been`WE0-Tviv s experience that the above stated procedures are the minimum triat would <br /> be required by the County EHD in order to further evaluate the site and eventually g closure <br /> of the tank site. <br /> Should you have any questions regarding these suggestions, please do not hesitate to contact me. <br /> Sincerely, <br /> ROOY� F. WESTON, INC. <br /> A' OE <br /> Robert M. Sengebush, R.G. <br /> RMS/cmc Project Manager <br /> cc: Paul Sundberg <br /> RMSA 7MAYER.MVP <br />