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The UST was removed in August of 1991. The condition of the tank at the time of removal was reported as "rusted and pitted" with no holes. Conditions and methodology of the UST removal are detailed in the attached PHS-EHD's inspection Form. Four subsurface soil samples were collected during the UST removal. Two Samples, SS-1 and SN-1, were collected from soils beneath the ends of the UST at depths of 11 feet below ground surface (bgs). Two additional samples were collected from beneath the underground piping, P-1 (nearest the fuel dispensing unit) and P-2 (nearest the UST). The samples were laboratory analyzed for Total Petroleum Hydrocarbons (TPH-G) and Benzene, Toluene, Xylenes, and Ethylbenzene (BTXE) compounds. The samples were also analyzed for Total and STLC Lead. The concentrations detected in all of the analytical samples, with the exception of P-1, were reported as "below laboratory detection limits" (ND) with inconsequential amounts of lead. Sample P-1 reported concentrations of TPH-G at 280 mg/kg and BTXE compound concentrations ranging from 1.9 to 55 mg/kg. Laboratory analytical results are attached. Subsequent to UST and piping removal, the excavations were backfilled with native and borrowed fill and resurfaced. On September 16, 1997, approximately three cubic yards of material were excavated at the P-1 sample location, exposing a 4-inch diameter metal sewer line which was punctured during excavation. The excavated soil (stockpile), which was placed on plastic sheeting, exuded a hydrocarbon odor. On September 17, 1997 Mr. Ron Rowe of PHS-EHD was contacted and an onsite meeting was conducted with Mr. Rowe, Mr. Reeder , and TreaTek's representative. It was decided that a Workplan detailing a Limited Site Investigation should be prepared to in part satisfy the "Correction Actions Regulations" as required by PHS-EHD. Proposed Scope of Work TreaTek proposes to collect three soil samples from the present UST excavation area. Two samples will be collected from the existing excavation and one from the stockpiled soil. TreaTek believes that two samples, one collected from the excavation sidewall (adjacent/beneath the building foundation) and the other from the excavation bottom, will be sufficient at this time to assess this relatively small excavation; because previous samples collected further north (toward the UST) did not exhibit detectable concentrations of gasoline related compounds. The excavation samples will be collected as directed by the PHS-EHD representative. They will be collected by driving a 2 X 6 inch stainless steel sampling tube into the sidewall and base of the excavation with a manually operated (hammer driven) coring device. The sampling device will be disassembled and thoroughly cleaned between sampling events with a