Laserfiche WebLink
i <br /> �•/ ROGER N.O� <br /> FODTT1 <br />{ <br /> ASSOCIATES <br /> GEOTECHNICAL, ENVIRONMENTAL <br /> June 29, 1993 <br /> 312-001 <br /> Mr. John Pollock <br /> 1888 Sentry Park East, #1900 <br /> Los Angeles, California 90067 <br /> Subject: Subsurface Investigation <br /> Clements Garage, 18633 East Highway 88 <br /> Clements, California <br /> Dear Mr. Pollock: <br /> This letter presents the results of our subsurface environmental investigation <br /> designed to evaluate the concentration of soluble lead in soil beneath a former <br /> underground leaded gasoline storage tank. Our investigation was conducted on June 16, <br /> 1993, at the Clements Garage facility located at 18633 East Highway 88 in Clements, <br /> California (Figure 1). The approximate location of the former tank and the boring location <br /> are shown on the attached Generalized Site Plan (Figure 2). <br /> BACKGROUND <br /> Four underground storage tanks were removed from the site in 1987 or 1988. Soil <br /> samples collected from beneath the tanks indicated that the soil did not contain petroleum <br /> hydrocarbons. San Joaquin Local Health Department (SJLHD) closed the site file at that <br /> time. <br /> In November, 1990, an additional 350-gallon leaded gasoline storage tank was <br /> discovered during excavation in a city right-of-way on the site. The tank was removed by <br /> Western Meter Service, Inc. of Lodi, California on November 6, 1990. A soil sample was <br /> collected beneath the excavation at a depth of approximately 7 ft. Laboratory analysis of <br /> the soil sample indicated that 0.0094 ppm total xylene isomers and 26 ppm total lead <br /> (T17-C) was detected in the sample. Total petroleum hydrocarbons in the gasoline range, <br /> benzene, toluene, ethylbenzene, and ethylene dibromide were not detected in the soil <br /> sample at or above the detection limits. <br /> 1450 Harbor Boulevard, Suite G• West Sacramento,CA 95691 • (916) 325-2580 9 fax (916) 325-2570 <br />