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Ultramar <br /> Ultramar,inn Telecopy 209-585 5685 Credit <br /> P Q 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 /> a 'ffi i <br /> DATE REPORT SUBMITTED September 3, 1997 SEP - 5 1997 <br /> QUARTER ENDING June 30, 1997 <br /> ENVIRONMENTAL HEALTH <br /> SERVICE STATION NO 419 PERMIT/SERVICES <br /> ADDRESS 2350 Waterloo Road, CA <br /> COUNTY San Joaquin <br /> CONTACT PERSON Kenneth R Earnest TEL NO 209-583-5571 <br /> BACKGROUND <br /> During October, 1993, three single-wall underground storage tanks were removed from the site <br /> and replaced with a complete double-wall UST system Soil samples were collected from the tank <br /> area and beneath the dispensers Over excavation, to a maximum depth of 30 feet, was conducted <br /> in the tank area to remove soil contatmng elevated levels of petroleum hydrocarbons Subsequent <br /> sampling and analysis indicate that none detect to elevated levels of gasoline hydrocarbons <br /> remained in the soil beneath the UST area The soil samples collected from the island areas were <br /> none detect for gasoline hydrocarbons <br /> In July, 1994, three on-site monitoring welds (MW-I, MW-2 and MW-3) were installed <br /> Analytical data for the initial water samples collected from the wells indicate that ground water <br /> was impacted with gasoline hydrocarbons Quarterly monitoring of the wells was initiated in <br /> October, 1994 <br /> SUMMARY OF THISQUARTER'S ACTIVITIES <br /> Ground-water sampling of all the wells was conducted by Doulos Environmental on June 30, <br /> 1997 <br /> RESULT OF QUARTERLY MONITORING <br />• Analytical results of the water samples continue to indicate that dissolved concentrations of <br /> gasoline hydrocarbons remain present in the wells <br /> 1 IBEM�(&UV <br /> A Member of the Ultramar Group of Companies #i Quality and Service <br /> clmalmar <br />