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PUBLit HEALTH SERVICES v Pp �N <br /> SAN JOAQUIN COUNTY <br /> IOGI KHANNA M.D..M.M. <br /> Health Officer <br /> P.O. Box 2009 • (1601 East Hazelton Avenue) •Stockton, CaJ9 mia 95201 <br /> (209) 468-3400 <br /> EDWARD GOTELLI <br /> GOTELLI TRUCKING <br /> P O BOX 55103 <br /> STOCKTON CA 95205 JUL ig9 <br /> RE: Gotelli Trucking SPIE CODE: 1445 <br /> 1649 East Channel Street <br /> Stockton CA <br /> APN 153-030-20 <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) <br /> has reviewed documents regarding the above mentioned site and has the following <br /> comments for your consideration. <br /> Three underground storage tanks were removed October 7, 1988, a 350 gallon waste oil <br /> tank, a 8,000 gallon diesel tank, and a 10,000 gallon diesel tank. Soil contamination was <br /> documented during tank removal sampling. A re-excavation to remove soil <br /> contamination associated with the diesel tanks occurred January 27, 1989 and <br /> contaminated stockpiles resulted from this re-excavation. The contaminated stockpiles <br /> have remained on site and require either disposal or treatment. Residual soil <br /> contamination, documented at 8 feet, is associated with the waste oil tank (8500 ppm <br /> total extractable hydrocarbons, TPEH) and will require father investigation and/or <br /> remediation. Residual soil contamination remains as a potential source of contamination <br /> to groundwater. <br /> A 1,000 gallon gasoline tank was removed July 12, 1990. Soil contamination was <br /> documented during the tank removal, at 11 feet (11.5 ppm benzene, 430 ppm toluene, <br /> 380 ppm ethylbenzene, 1870 ppm xylene, 6100 ppm total petroleum hydrocarbons - <br /> gasoline and 83 ppm total lead). Residual soil contamination remains as a potential <br /> source of contamination to groundwater. Further investigation and/or remediation of soil <br /> contamination associated with the gasoline underground storage tank will be necessary. <br /> Additionally, a groundwater investigation may be necessary to determine whether the <br /> water quality has been compromised. <br /> As discussed during the July 13, 1992 telecommunication between you and a member of <br /> my staff, a work plan and/or soil remediation plan must be submitted by August 28, 1992 <br /> and should include a stockpile characterization plan, a soil disposal plan and a soil <br /> investigation/remediation plan. <br /> A Division of San Joaquin Counry Heahh tare Servrces <br />