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Ultramar <br /> Telecopy: 209-585-5685 Credit <br /> Ultramar,Inc. 209-583-3330 Administrative <br /> P.O.Box 209-583-3302 Information Services <br /> Hanford,CA 93232-0466 525 W.Third rd Street 209-583-3358 Accounting <br /> Ha <br /> (209)582-0241 <br /> ENVIRONMENTAi, ........ <br /> :QUARTERLY STATU`S REPORT:'' <br /> DATE REPORT SUBMITTED: September 29, 1995 RECEIVED <br /> QUARTER ENDING: September 30, 1995 OCT 0 4 1995 <br /> SERVICE STATION NO.: 474 ENVIRONMENTAL HEALTH <br /> PERMIT/SEkVICES <br /> ADDRESS: 3440 East Main Avenue, Stockton CA <br /> COUNTY: San Joaquin <br /> ULTRAMAR CONTACT: Randall K. Stephenson TEL. NO: 209-583-3324 <br /> BACKGROUND: <br /> In March, 1991, a limited soil investigation was conducted at the site as part of a <br /> . divestment project. Analytical results of selected soil samples collected from borings <br /> drilled during the investigation indicated the presence of trace levels of gasoline <br /> hydrocarbons beneath the site. <br /> Removal of the three existing UST's was performed in September 16, 1993. Analytical <br /> results of soil samples collected from the tank basin and the fuel islands indicated the <br /> presence of trace levels of gasoline range hydrocarbons in these areas. The tank basin <br /> was over-excavated to a depth of 30 feet in an effort to remove the impacted soil. The <br /> highest benzene in the samples collected from 30 feet was 0.12ppm with no detection of <br /> TPHg. <br /> Based on the analytical results from the drilling and the UST removal, San Joaquin Co. <br /> Environmental Health required that Ultramar install three ground-water monitoring <br /> wells at the site to assess ground-water conditions beneath the site. These wells were <br /> installed in December, 1993. Analytical results of water samples collected from the <br /> wells indicate that ground water beneath the site is impacted with gasoline <br /> hydrocarbons. Quarterly monitoring of the wells was initiated in the first quarter of <br /> 1994. <br /> _ SUMMARY OF THIS QUARTER'S ACTIVITIES: <br /> Ground-water sampling of all the wells was conducted by Doulos Environmental, on <br /> June 20, 1995. <br /> BEACON <br /> A Member of the Ultramar Group of Companies #1 Quality and Service <br />