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is a private well located on the BJJ Co. property, about 250 feet south of the site of Husky Crane' s removed UST' s, but no details are available. A recent review of the County EHD files on the BJJ site show that there is a groundwater monitoring well on the property to the area between the main building and a storage shed It was placed to evaluate possible contamination from a waste oil tank which was located beneath the building and was abandoned in Rlace. Water samples taken in January, 1991 , shortly after acement of the taneves e t e presence o ethylbenzene, xy ene, gasoline- Analysis of water taken in January, 1993, revealed that BTEX & TPH-G were present However, water samples taken in January & April , 1994, were below detection limits for BTEX & TPH-G As a result of those latest tests, it was inferred that the hydraulic gradient is to the west-southwest, and a workplan was prepared to place an additional well on the property to the south of the waste oil tank. The work was scheduled for the week of July 25 , 1994, the files did not have any information concerning the status of that proposed work There is also a private well on the Husky property 200 feet southesterly from the tank site, a review fump d company records did not produce any informati��hecwellrisngsed to provide water for intervals, or capacity. company operations_ PRIOR 11SAGE OF THE REMOVED TANKS The 500 & 1,000 gallon UST' s had both contained gasoline for use in fueling company vehicles and heavy equipment They had been installed prior to the current owners' purchase of the property in 1984, and no records are available concerning installation date(s) or usage prior to that time. The pump island andtanks were removed by company pe�rsor�l sometime prior to May, there are no records on the removal or disposition of the tanks, no soil samples were taken, and the work was not Permitted or witnessed by County persor4l SUMMARY OF PRIOR INVESTIGATIVE WORK On September 5, 1991 , Husky Crane, Inc_ submitted an Application for Underground Tank Closure Permit to the San Joaquin Co RHD, (EXHIBIT Dom ) for one (1) 500 gallon and one ( 1) 1 , 000 gallon gasoline tank As noted above, the tanks had been removed in 1986 or 1987 , but that work had not been witnessed by San Joaquin Co_ personel On October 15, 1991 , the site of the removed UST' s was entered, and three (3) Soil samples were taken one at 14' bgl from the 3