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• unramar <br /> l 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 /> R A <br /> DATE REPORT SUBMITTED October 20, 1998 <br /> QUARTER ENDING September 30, 1998 <br /> SERVICE STATION NO 419 <br /> ADDRESS 2350 Waterloo Road, CA <br /> COUNTY San Joaquin <br /> CONTACT PERSONJoseph A Aldridge TEL NO 209-583-3231 <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 /> Groundwater sampling was conducted by Doulos Environmental on September 8, 1998 <br /> Groundwater monitoring and vapor extraction wells were installed in September in accordance <br /> with the recent approved investigation workplan and amendments <br /> EEAVWN <br /> A Member of the Ultramar Group of Companies #1 Quality And Service <br /> Ult�dtnar <br />