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L <br /> PHONE 285-2400 <br /> CABLE ADDRESS: TIMOIL <br /> TACOMA TEN ;FAX) 206-283-8036 <br /> PORTLAND T <br /> STOCKTON D I2 I p <br /> RENO <br /> RICHMOND 1 2 °"E TIME OIL CO . ' <br /> LOS ANGELES I9 3 <br /> 1s a <br /> 7 6 5 IT3 <br /> 2737 WEST COMMODORE WAY SEATTLE, WA 98199-1233 <br /> PRODUCTS T P.O. BOX 24447 S ER'I'T'EE;, � . 0447 <br /> TIME TESTED M 1: „ z_ 4 <br /> E <br /> `" I � ' une 25, 1941 <br /> 1= &W <br /> Harlin Knoll J U N z 8 1991 <br /> San Joaquin County Public Health Services ENVIRONMENTAL HEATH <br /> Environmental Health Division <br /> P.O. Box 2009 PERMIT/SERVICES <br /> Stockton, California 95201 <br /> RE: Letter of Request for Entry Into Local Oversight Program for <br /> Jackpot Food Mart, 13475 N. Jack Tone Road, Lodi, California <br /> Property No. 04-026 <br /> Dear Mr. Knoll: <br /> In the process of removing underground storage tanks at the above-referenced <br /> site, we encountered minor contamination which requires further action. As we <br /> discussed by phone, Time Oil Co, would like to enter the San Joaquin County's <br /> Local Oversight Program (LOP) for the remediation of the above referenced site. <br /> On November 16, 1990, Time Oil Co. removed six underground storage tanks from the <br /> subject property. Three gasoline tanks with volumes of 12,000, 10,000, and 6,000 <br /> gallons were removed from a common excavation on the south portion of the i <br /> property. Three additional 1,000 gallon tanks with no record of previous content f <br /> were removed from a separate excavation on the north portion of the property. <br /> The three gasoline tanks seemed to be in good condition with very little surface <br /> corrosion while the 1,000 gallon tanks seemed to be in fair condition. None of <br /> the tanks appeared to have leaked. Attachment 1 shows the location of the tank <br /> excavations. <br /> Soil samples were collected by a representative of ETS Environmental & Associates <br /> as directed by Ms. Letitia Resch of the San Joaquin County Public Health Services <br /> Environmental Health Division (PHS-EHD) from a depth of approximately 15 feet in <br /> the excavation which contained the gasoline tanks and from a depth of 9.5 feet <br /> from the excavation which contained the 1,000 gallon tanks. Additional samples <br /> were collected from along the product lines and near the pump island at depths <br /> of 3 to 4 feet. <br /> All samples were submitted to a laboratory and analyzed for total petroleum <br /> hydrocarbons (TPH) as gasoline by EPA Method 8015 and benzene, toluene, <br /> ethylbenzene, and xylenes (BTEX) by EPA Method 8020. Samples collected from near <br /> the leaded gasoline tank, the 1,000 gallon tanks, and the product piping were <br /> analyzed for EDB by EPA Method 8010 and organic lead. The samples collected from <br /> beneath the 1,000 gallon tanks were also analyzed for TPH as diesel. t <br /> Analytical results indicated the presence of TPH as gasoline at 91 ppm and <br /> benzene at 0.10 ppm in the sample collected from beneath the south end of the I <br /> 12,000 gallon tank. The sample collected from the south edge of the pump island <br /> contained TPH, benzene, and soluble lead at 590 ppm, 1.3 ppm, and 0.14 ppm, <br /> I <br />