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t i 4-Tj <br /> Ultramar <br /> . Ultramar Inc t '' iry : 28 Telecopy 209 584-6113 Credit&Wholesale <br /> P D 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: October 14, 1994 <br /> QUARTER ENDING: September 30, 1994 <br /> SERVICE STATION NO. : 494 <br /> ADDRESS: 2185 East Fremont, Stockton, California <br /> COUNTY: San Joaquin <br /> ULTRAMAR CONTACT: Kenneth R. Earnest TEL. NO: 209-583-5571 <br /> BACKGROUND: <br /> Due to a possible real estate divestment three ground-water <br /> monitoring wells and two soil borings were completed in April <br /> 1992 Initial laboratory results indicated that two of the <br /> • monitoring wells exhibited detectable amounts of petroleum <br /> hydrocarbons. Both of the soil borings exhibited <br /> non-detectable amounts of petroleum hydrocarbons. <br /> The three 10,000 gallon underground storage tanks, product <br /> lines and dispensers were removed from the site on March 8, <br /> 1993. <br /> A Limited Soil Gas Survey and Vacuum Extraction Feasibility <br /> Test was completed in mid March 1993, with favorable results <br /> for future vapor extraction. <br /> SUMMARY OF THIS QUARTER'S ACTIVITIES: <br /> Quarterly monitoring was performed on September 15, 1994. <br /> RESULT OF QUARTERLY MONITORING: <br /> Ground-water analyses show MW-2 and MW-3 to contain the <br /> largest amounts of benzene at 7.2 and 50 parts per billion <br /> (ppb) respectively. MW-1, MW-4 and MW-5 contain <0.5, 2.1 and <br /> 1 .2 ppb respectively. <br /> i <br /> BEACON <br /> A Member of the Ultramar Group of Companies #1 Quality and Service <br />