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PUBLYC HEALTH SERVICES �o X1 <br /> SAN JOAQUIN COUNTY Y a <br /> JOGI KHANNA M D,M.P.H 4 . <br /> Health Officer P <br /> C4� <br /> P.O. Sox 2009 • (1601 East Hazelton Avenue) 0 Stockton,CaliforniaFia 95201 0 <br /> (209) 468-3400 <br /> MR RAYMOND C GRAETZ <br /> UNION SAFE BANK . <br /> SEP <br /> 317 E MAIN ST S E P 0 3 1992 <br /> STOCKTON CA 95202 <br /> RE: (Former Valley Commercial Bank) SITE CODE: 9277 <br /> 7810 Thornton Rd. <br /> Stockton, CA <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) <br /> has reviewed the property acquisition document entitled "Remedial Investigation Report" <br /> prepared by Augeas Corporation. <br /> Further investigation of this site has revealed the following: <br /> 1. A copy of the City of Stockton Fire Department permit for tank removal <br /> #8361 dated May 10, 1983, has been obtained indicating four (4) gasoline <br /> tanks (1-10,000 gallon Regular, 2-6,000 gallon Unleaded, and 1-4,000 gallon <br /> Super) and one waste oil tank were removed from this site. <br /> 2. A site diagram map of Ron's Chevron Service Station 8108 has been <br /> provided to PHS/EHD by Clint Rogers, Chevron USA. The diagram shows <br /> 4 gasoline tanks (1-10,000 gallon Regular, 1-4,000 gallon Unleaded, 1-5,000 <br /> gallon Super Regular, 1-5,000 gallon Unleaded) and a Waste Oil Tank. <br /> Our evaluation of the site diagram map relative to soil boring placement <br /> indicates piping, dispenser islands, and the waste ail tank have not been <br /> adequately investigated. The former site of the waste oil tank appears to <br /> be underneath the current bank structure. <br /> 3. In a phone conversation Clint Rogers, Chevron USA, verified the diagram <br /> map symbols (U,I S) as the dispensed fuels noted in #2 above. Therefore <br /> analytical sampling shall follow Table #2 of the "Tri Regional Board Staff <br /> Recommendations for Preliminary Evaluation and Investigation of <br /> Underground Tank Sites", August 10, 1990 for Leaded Gas, Unleaded Gas, <br /> and Waste and Used Oil or Unknown [SWRCB Resolution 92-46]. <br /> A Division of'an Joaquin[ounry Health Care semces 10 <br />