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groundwater monitoring data (March, 1992) determined groundwater flow direction to the south A detailed discussion of the initial subsurface investigation can be found in RESNA's "Intenm Problem Assessment Report, Soil and Groundwater Contamination, " dated June 8, 1992 In July 1994, a RESNA field geologist observed the drilling of four additional groundwater monitoring wells (MW4, MW5, MW6, and MW7) at the site to further characterize subsurface conditions Groundwater samples collected from these additional wells contained no detectable petroleum hydrocarbons A detailed discussion of the Phase 2 Subsurface Investigation can be found in RESNA's "Summary Report, July 1994 Investigation, " dated August 26, 1994 The lateral extent of groundwater contamination within the uppermost water bearing zone at the subject site has been defined as a result of subsurface investigations conducted to date Analytical results of soil and groundwater samples collected from site borings/groundwater monitoring wells are summarized in Tables 1 and 2, respectively Depth to groundwater and groundwater elevation data are summarized in Table 3 PROPOSED SCOPE OF WORK Soil Investigation To further define the extent of soil contamination near the former contaminant source Canonie has been authorized by KOK to drill and sample four soil borings near the former underground fuel storage tank Drilling will be conducted by a C-57 licensed contractor using a drill rig equipped with eight inch diameter hollow stem augers Borings will be advanced to approximately 15 feet below grade, the approximate depth of saturation Two soil samples per boring will be collected for submittal to a State certified laboratory for analysis of total petroleum hydrocarbons as gasoline (TPHg) using modified EPA method 8015 and benzene, toluene, ethylbenzene, and xylenes (BTEX) using EPA method 8020 Proposed soil boring locations are shown on Plate 2 All drilling and soil sampling activities will be performed in accordance with the attached Field Procedures Following the completion of drilling, the borings will be grouted to the surface with neat cement grout Groundwater Monitoring and Sampling In addition to the continued soil investigation, Canonie has been authorized to continue groundwater monitoring and sampling activities at the site in accordance with the fallowing proposed sampling schedule 1500911REPORTSILR013195 doe 2 -REnvlronmental