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t3 <br /> _.mom <br /> lead. Laboratory analysis revealed that all tested components <br /> were below detection levels; refer to Table II & Exhibit B for <br /> details. <br /> Because of the minor amount of contamination encountered in the <br /> samples from 2,000 gal. diesel tank, the site was reentered on <br /> August 1, 1989, and reexcavated under a workplan submitted by <br /> Thorpe Oil & approved by the County EHD. F.efer to Exhibit A for <br /> a copy of that workplan. <br /> Five (S) soil samples were taken, one from each sidewall and one <br /> from the bottom of the excavation, with instructions to test for <br /> BTEX, E57,3, TVPH, TEPH, & organic lead. <br /> The results of the laboratory tests, CTable i & Exhibit E) showed <br /> that the soil sample taken from the west wall contained 110 mg/kg <br /> TEPH; all other tested substances were below detection levels in <br /> all samples. <br /> On September 187 1989, Thorpe Oil again reentered the excavation <br /> and a soil sample was taken by Canonie laboratory, (now Weston,) <br /> personel from approximately the same location as the previous one <br /> which had revealed some minor contamination. That sample was <br /> tested for TEPH, which revealed it to be below detection limits. <br /> Refer to Table I and Exhibit F for details. <br /> r <br /> A Site Assessment Report was prepared by Thorpe Oil and submitted <br /> to the County EHD an September 29, 1999. It stated that all can-, <br /> tamination had been removed from the site, and no further work <br /> was necessary. Refer to Exhibit G for a copy of that report. <br /> The County EHD staff responded on November 7, 1989, stating that <br /> they did no c,)ncur with the 5AR conclusions, and believed that <br /> further work was required. Refer to Exhibit H, for a copy of that <br /> document. <br /> On June 71 1990, the EHD issued a formal letter stating that a <br /> groundwater investigation workplan must be prepared and submitted <br /> within 14 days. A Preliminary Report & Site Assessment Report <br /> was prepared by Wm. J. Hunter & Associates and submitted to the <br /> County staff in July, 1990. Refer to Exhibit I for a copy of <br /> that report. <br /> On Janury 31 1991, The County EHD staff responded to the above <br /> report, stating that a groundwater investigation was still <br /> required, but that because the gradient had been well established <br /> by' the 14 monitoring wells placed on and around the adjacent <br />