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3 <br /> `W01 PHONE 285-2400 <br /> CABLE ADDRESS: TIMOIL <br /> SEATTLE TE (FAX) 206-283-8036 <br /> TACOMA N <br /> PORTLAND T <br /> STOCKTONRENO <br /> 12 1 <br /> LICHOND <br /> OS ANGELES 9 23 oNE TIME O I L C O O <br /> s 7 8 s a <br /> T. 2737 WEST COMMODORE WAY SEATTLE, WA 98199-1233 <br /> PRODUCTS � <br /> T P.O. BOX 24447 SEATTLE, WA 98124-0447 <br /> Ti ME TESTED ME September 24, 1991 <br /> RE: Summary of "Closure Excavation and Sampling Workplan" for <br /> Jackpot Food Mart, 13475 N. Jack Tone Road, Lodi, California <br /> Property No. 04-026 <br /> To All Interested Parties: <br /> The following summary of the September 6, 1991, site cleanup workplan entitled <br /> "Closure Excavation and Sampling Workplan, Time Oil Company, Lodi, California" <br /> for remedial activities at the above-referenced site has been provided for public <br /> review. <br /> On November 16, 1990, Time Oil Co. removed six underground storage tanks from the <br /> above-referenced property. The location of the tanks and sample collection <br /> points are presented as Attachment 1 - Site Plan in the attached "Closure <br /> Excavation and Sampling Workplan". <br /> Seventeen soil samples were collected for laboratory analysis from the area <br /> beneath the former tanks, along the product lines, and near the pump island. <br /> Analytical results indicated the presence of gasoline at 91 ppm and benzene at <br /> 0.10 ppm in the sample collected from beneath the south end of the 12,000 gallon <br /> tank. The sample collected from the south edge of the pump island contained TPH <br /> at 590 ppm and benzene at 1.3 ppm. No contaminants were detected in the <br /> remaining fifteen samples. <br /> A work plan prepared by a Canonie Environmental Services Corp. has been submitted <br /> to the San Joaquin County Public Health Services Environmental Health Division <br /> (PHS-EHD) for implementation of the following remedial actions: <br /> A. A backhoe will be utilized to expose the areas where contaminants were <br /> indicated during the tank removal. <br /> B. All contaminated soil will be removed from these areas, placed on plastic <br /> sheeting, and covered to prevent runnoff. It is estimated that the <br /> excavation of approximately 15 cubic yards of soil will sufficiently <br /> remove the contamination. <br /> C. Upon receipt of analytical results which verify that the contamination has <br /> been removed, the excavation will be backfilled. <br /> D. The soil stockpile will be disposed of at a landfill or by another <br /> suitable means as determined by the PHS-EHD. <br /> Questions and comments regarding this workplan should be addressed to Mr. Harlan <br /> Knoll of the PHS-EHD. <br /> Sincerely, �} <br /> �• <br /> 4WC54�:TZ11::7 �/J <br /> Anastasia E. Duarte <br /> Environmental Toxicologist <br />