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Ultramar <br /> Ultramar Inc Telecopy 209 585 5685 Credit <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 /> � � o <br /> DATE REPORT SUBMITTED December 29, 1997 <br /> QUARTER ENDING December 31, 1997 <br /> SERVICE STATION NO 419 <br /> ADDRESS 2350 Waterloo Road, CA <br /> COUNTY San Joaquin <br /> CONTACT PERSON Kenneth R Earnest TEL NO 209-583-3271 <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 containing 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 wells (MW-1, 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_THIS QUARTER'S ACTIVITIES <br /> Ground-water sampling of all the wells was conducted by Doulos Environmental on November <br /> 21, 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 /> EACCON <br /> A Member of the Ultramar Group of Companies #3 Qu-d"And Service <br /> Ultrarllar <br />