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` ENVIRONMENTAL HEALTH DIVISION <br /> 304 E. Weber Ave. Third r -ir <br /> P O. Box 388, S o I ton C`Ir5201-0388 �..f <br /> Approved 1.1 <br /> aurc.., <br /> coal iitions +� 1 , e Q,,, �: FOOTHILL <br /> �`Y� ENGINEERING <br /> 12793 PADDY CREEK LANE LODI. CA 95240 <br /> by PH. (209) 368-9381 FAX (209) 367-1163 <br /> Harlan Knoll April 12, 2001 <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P. O. Box 388 <br /> Stockton, CA 95201 <br /> Fax: 464-0138 <br /> Subject: Work Plan to Determine the Vertical and Horizontal Extent of Diesel Contamination <br /> Site: 18846 N. State Highway 99 E. Frontage Rd. A.K.A. Victor Meats Property <br /> Dear Mr. Knoll, <br /> Woodbridge Partners Inc.,owners of the above stated property, have retained Foothill Engineering <br /> to develop and supervise a Work Plan to determine the extent of the soil contamination discovered <br /> during the removal of USTs. The Underground Storage Tanks were removed by Ford Construction <br /> Co. on or about August 17, 2000, under the supervision of the PHS/EHD (see permits attached). <br /> RECENT HISTORY OF THE SITE <br /> This site was used for a number of years as a meat processing facility for Victor Meats.The property <br /> and all of the attached improvements were purchased by Woodbridge Partners Inc.at a court ordered <br /> sale in 1999. One waste oil tank and two underground diesel fuel storage tanks of 12000 gallons and <br /> 8000 gallons each were included as attached improvements to this forced sale. <br /> On August 17,2000,Ford Construction Co. removed the three afore mentioned underground storage <br /> tanks under a San Joaquin County UST closure permit issued on August 8, 2000 (see permit <br /> attached). Under the supervision of the consultant, Kleinfelder, Inc., twelve soil samples were <br /> extracted from the area under the tanks and the soil spoil stockpile. Soil samples were transported <br /> under Chain of Custody to Alpha Analytical Inc. for analysis. Groundwater was not encountered <br /> during the removal of these tanks. <br /> Results of Tank Removal Soil Samples <br /> Analysis by EPA Method 8015B/DHS LUFT yielded concentrations of TPHd to 18000 mg/Kg for <br /> the sample from under the south end of the 12000-gallon diesel fuel tank(Sample 21371-EB-S-12K- <br /> 12 ft.). Low concentrations to 570 mg/Kg were found on the north end of this diesel storage tank. <br /> Low concentrations of TPHd were found in the stockpiled excavation spoil.A low concentration of <br /> MTBE was indicated in a soil sample extracted from under the south end of the 12000-gallon diesel <br /> tank (see Summary of Soil Analytical Results attached). <br /> Only extremely low levels of heavy metals were indicated in the sample from the waste oil tank and <br /> are most likely not a result of a waste oil spill. <br /> I <br />