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very likely that the water table is higher than found during the <br /> recent work. <br /> PRIOR USE OF UST' S. <br /> The tanks were used to fuel company and personal vehicles for <br /> business purposes They were installed in June, 1974, and were <br /> taken out of service in June, 1994, when they were removed. <br /> There are no accurate records concerning fuel usage, and inven- <br /> tory tracking reconcilliation was not performed. <br /> LOCATION OF NEARBY WELLS: <br /> We have not had sufficient time in which to research the County <br /> EHD files or make a field inspection of the area to determine the <br /> location(s) of any wells. This review will be performed as soon <br /> as possible, and will be furnished with the report covering the <br /> results of the work to be performed under this workplan <br /> BRIEF REML4 OF PR WO_K- <br /> u e $ - Thorpe Oil Co. removed two (2) 1 , 000 gallon UST' s <br /> which had been used for storing & dispensing unleaded gasoline <br /> There was a strong petroleum odor noted during excavation & <br /> removal of the tanks, and apparent soil discoloration The <br /> piping from the tanks to the dispensing pump was removed, as well <br /> as the pump. No odors or discoloration were noted in those <br /> areas. The removal of the tanks was witnessed by Pamela Violett <br /> of the San Joaquin County EHD Soil samples were taken from the <br /> backhoe bucket by an employee of Geo-Analytical laboratory, as <br /> directed by the County representative PLATE III shows the <br /> locations of those samples. The results of the laboratory <br /> analyzes are listed on SLE I. The removed spoil was returned <br /> to the hole, and barricades were placed around the site. <br /> Correspondence from the San Joaquin Co. EHD, dated July 18, <br /> 1994 , required further assessment work to evaluate possible soil <br /> & water contamination. As a result of that correspondence, a <br /> workplan was prepared by WJH to remove the returned soil & as <br /> much additional contamination as possible <br /> October - Approximately 128 cubic yards of contaminated <br /> soil was removed from the site of the removed UST' s, resulting in <br /> an excavation about 16' x 18' x 16' deep. Soil samples taken <br /> from the sides & bottom all revealed detectable amounts of BTEX & <br /> TPH-G, refer to PLATE IV for details The results of the <br /> laboratory analyzes of those samples is summarized on TABLE II <br /> PLATEV is a three dimensional sketch of the site showing <br /> lithology & other features encountered during the excavation. <br /> 3 <br />