SITE INFORMATION AND CORRESPONDENCE

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THE REMEDIATION GROUP, inc. Environmental Manogement and Engineering Consultants 7036 Balsam Way, suite 100 Oakland,California 94611 Telephone 510-655-7678 Fax 510-65r--7637 April 27, 1995 k 5 1 Project 1002.01-01 IQ Mary Meays A F R 2 7 1995 Senior R.E•H.S. ENVIRONMENTAL HEALTH Public Health Services, San Joaquin County PERMIT/SERVICES Environmental Health Division 445 N. San Joaquin Street P.O. Box 388 Stockton, California 95201-3388 Subject: Transmittal of Additional Closure Documentation 4110 Industrial Way Tracy, California Dear Ms. Meays: As you requested, an additional table (Table 4), presenting the results of the soil stockpile sampling performed during tank removal activities at 4110 Industrial Way in Tracy, California in 1992, is enclosed. This table and a revised page 4 of our December 6, 1994 site closure report - where the words "The analytical results for the soil stockpile sampling conducted during the tank removal activities are tabulated on Table 4." have been added - are enclosed. Please insert this table and replace page 4 in your copy of the closure report. This information has been previously presented to the San Joaquin County Environmental Health Division (County) in reports prepared in 1992 and it was discussed during our meeting on April 12, 1995. You have stated that you find the December 6, 1994 closure report "incomplete" because it "continually refers to previous reports". Apart from our obvious beliefs about how appropriate or inappropriate it is to refer to these earlier reports, it should be cleat that oily one earlier report is specifically referred to; and, it is reproduced and attached to the closure report and its results are very clearly and concisely summarized on page two of the closure report. Accordingly, we submit that the closure report is comprehensive and complete. We continue to petition the County for administrative closure. We have demonstrated, through groundwater sampling conducted over four successive calendar quarters, under the auspices of the County, that no detectable contamination remains at this site. We have provided the County with reports documenting the results of our site activities. We have summarized all previous reports in a closure report, prepared in accordance with a County requested format; and, for the convenience of County staff-, we presented all our findings in our meeting on April 12, 1995. As we understand it, the intent of the closure report "is to provide a document upon which the regulator may make an objective decision regarding the requested closure" (CVRWQCB,