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r F, ra t <br /> o u1tramar -g� �1eE <br /> Ultramar Inc. 5 � 7 PH �; 2; 9 Telecopy: 209-584-6113 Credit&Wholesale <br /> P.O.Box 466 209-583-3330 Administrative <br /> 525 W.Third Street 209-583-3302 Information Services <br /> Hanford,CA 93232-0466 209-583-3358 Accounting <br /> (209)582-0241 <br /> ENVIRONMENTAL PROJECT <br /> QUARTERLY STATUS REPORT <br /> DATE REPORT SUBMITTED: March 13, 1995 <br /> QUARTER ENDING: December 31, 1994 <br /> SERVICE STATION NO. : 474 <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 <br /> the site as part of a divestment project. Analytical results <br /> of selected soil samples collected from borings drilled during <br /> the investigation indicated the presence of trace levels of <br /> gasoline hydrocarbons beneath the site. <br /> Removal of the three existing UST's was performed in <br /> September 16, 1993. Analytical results of soil samples <br /> collected from the tank basin and the fuel islands indicated <br /> the presence of trace levels of gasoline range hydrocarbons in <br /> these areas. The tank basin was over-excavated to a depth of <br /> 30 feet in an effort to remove the impacted soil . The highest <br /> benzene in the samples collected from 30 feet was 0.12ppm with <br /> no detection of TPHg. <br /> Based on the analytical results from the drilling and the UST <br /> removal , San Joaquin Co. Environmental Health required that <br /> Ultramar install three ground-water monitoring wells at the <br /> site to assess ground-water conditions beneath the site. <br /> These wells were installed in December, 1993. Analytical <br /> results of water samples collected from the wells indicate <br /> that ground water beneath the site is impacted with gasoline <br /> hydrocarbons. Quarterly monitoring of the wells was initiated <br /> in the first quarter of 1994. <br /> SUMMARY OF THIS QUARTER'S ACTIVITIES: <br /> Ground-water sampling of all the wells was conducted by Doulos <br /> Environmental , on December 23, 1994. <br /> BEACON <br /> A Member of the Ultramar Group of Companies #1 Quality and Service <br />