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-4 -s ; _ <br /> DEPTH TO GROUNDWATER: No records of any wells in the immediate <br /> vicinity were found, but the Fall 1959 edition of the San Joaquin <br /> Co. Flood Control and uin <br /> Wetheatr owateratabletion D rict stabout M15', or 23' <br /> IV,) shows that the depth toe <br /> a <br /> below ground surface. Water depths in monitoring wells to the <br /> north of the property were in close agreement with this map. No <br /> water or significant moisture was encountered during excavation. <br /> MONITORING WELLS: The latest information <br /> LOCATION OF MUNICAL & <br /> available to erows miletttenearest <br /> thenorth <br /> oand 1/21mileltoathe <br /> wells are approximately l/2 <br /> hs <br /> milehtoSthe The <br /> northwestnearest <br /> onmonitoring <br /> Moffatwell <br /> Blvd.about <br /> RefeB/totPlate fXi <br /> for more detail. <br /> PRIOR HISTORY OF SITE: The office adjacent to the <br /> LISTlocation <br /> is <br /> Express Courier <br /> currently vacant, but had been occupied by <br /> a Ponyservice; the tank w�erQs�detnp records tav,+ilablehe fleet oconcerning fuel <br /> by the company. if any. <br /> usage or amount of spillage, <br /> On August 24, 1989, aim Thorpe Oil, Inc. removed one (1) 1,000 <br /> orage tank which had contained unleaded <br /> gallon underground st <br /> was note <br /> gasoline. A slight gasoline odor d during tank removal , <br /> but no soil discoloration or other evidence of leakage was <br /> evident in the spoil removed or the excavation. The tank and <br /> piping were in good Condit%or_ The tank was triple-rinsed and <br /> disposed of properly, (refer to Exhibit"B".) Two (2) soil samples <br /> were taken by Canonic Environmental beneath the tank cradles at <br /> and 10' at the south and. Refer <br /> depths of S' at the north end, <br /> to Plate VII far locations of the two samples. The results of <br /> the laboratory analyses showed detectable amounts of Xylene and <br /> TVPH; refer to Table i for details. At theZconclusiowidef X"6' <br /> work, the excavation was approximately laced on <br /> deep„ The removed spoil, about 25 cubic yards, was p <br /> plastic in an empty storage yard adjacent to the excavation, <br /> (refur to Plate VI. ) <br /> on April 26, 1990, Jim Thorpe Oil , Inc. submitted a soil re--exca-- <br /> vation/resample workplan (refer to Exhibit "C",) to enlarge the <br /> excavation to approximately 22' X 14' X 17' deep, <br /> existing 169 cubic yards of spoil. Soil samples <br /> removing aadditional <br /> were proposed to be taken as Shown on Plates Viii & IX. <br /> addition, 2 composite samples were to be taken from the excavated <br /> spoil to assist in future soil remediation. <br /> REVIEW OF LATEST WORK PERFORMED: <br /> on August 71 1990, Jim Thorpe Oil , Inc. moved in equipment and <br /> sail from the existing tenatownish-tan, <br /> tlbroThe m <br /> ents <br /> began removing very <br /> consisted of very fine to fine sand, <br /> 2 <br />