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u <br /> to Geo-Analytical laboratories with instructions to test for HTEX <br /> (EPA Method 6020, ) TPH-G (50. 0/LUFT, ) Ethylene Dibromide (LUFT, ) <br /> and total lead (EPA 7420. ) The results of those tests are <br /> summarized in Table I; Exhibit E contains copies of the labora- <br /> tory worksheets and chain-of-custody. Froth samples from the <br /> excavation revealed levels below detection limits for all tested <br /> components. The sample from the spoil pile, however, revealed <br /> significant levels of Xylene, (13,000 ug/kg, ) TPH-G, (1300 <br /> mg/kg, ) and total lead, (55 mg/kg. ) An additional test for <br /> soluble lead was run, which revealed a concentration of 1. 3 mg/l . <br /> First fie-excavation: <br /> As a result of the above tests, a workplan was submitted to the <br /> EHD which proposed to remove additional spoil from the east end <br /> of the excavation, where soil contaminated was noted. Exhibit D <br /> gives the details of that workplan. <br /> After approval from the County EHD, Jim Thorpe Oil moved in <br /> equipment on March 30, 1992, and began moving the existing spoil <br /> to another site for more permanent storage. Wm. Hunter, R. G. , <br /> picked up clean brass tubes, teflon tape, and plastic end caps <br /> from FGL Environmental and arrived on site at 9:40AM. Michael <br /> Collins, REHS, from the County EHD arrived on location at around <br /> 10:30PM. Work began by removing asphalt from the north and east <br /> side of the site, which was stored nearby. Rich Thorpe manned <br /> the backhoe, and began removing spoil from the east end of the <br /> former UST site. The upper 2 to 3 feet of soil consisted of <br /> black, organic-rich peaty loam, which graded to a tan to <br /> buff-colored sandy clay. The clay was fairly loose, slightly <br /> .J <br /> moist, with very low plasticity. Contamination was apparent on <br /> the north & south walls as digging progressed. Grab samples had <br /> a noticeable odor, which became fainter with depth. Spoil was <br /> placed on the southeast side of the hole, and then transferred to <br /> another location to the west of the large shop/office building as <br /> shown on Plate VIII. <br /> At a depth of about 6 to 7 feet, the lithology changed to a hard, <br /> dark gray clay with irregular bedding. Some minor odors were <br /> noted on the east side and northeast corner; the darker color of <br /> the sediments appeared to be related to the presence of dark <br /> minerals and not staining. At around 11 feet, a layer of mottled <br /> grayish white, hard, punky clay was encountered. It crumbled <br /> easily, and did not appear to have any contamination. <br /> Operations were temporarily halted at 11: 45AM due to a broken <br /> hydraulic hose on the backhoe bucket. After repairing the hose, <br /> Mr. Thorpe moved the spoil for storage at the previously selected <br /> v <br /> u <br />