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I buildings, housing maintenance, parts storage and office facilities. R& L purchased the property in 1958, and established their diesel repaii business. A Site Location Plan, and a Site Map, are included as Figures 1 & 2 respectively. These were copied from a Phase I Site Assessment completed by All Environmental, Inc. in October, 1994. The Site Plan has been modified to reflect recent changes. . 3.0 PURPOSE OF INVESTIGATION Two samples were secured as part of the previous, nvestigation-of the�closed in place UST, one from 1 ft. below the top of the tank, and one from under the tank. These were obtained using an angle drill. The sample from and r the tank evidenced contamination from diesel and VOCs. The current investigation is being undertaken to determine the extent of contamination, both laterally and vertically, resulting from this closed in place UST, and ultimately to provide a basis for appropri ate remedial action.' 4.0 DISCUSSION The UST is located inside a building (Transmissio Shop), under two concrete floors. A Geoprobe drill capable of drilling at an angle (up to 30(' from the vertical), was used to secure the previous samples. This necessitated sett ng up the drill 9 ft' 4 in. from the i centerline of the tank and drilling at an angle of 30 from the vertical, to secure a sample approximately 4 ft. under the bottom of the tank, or 16 ft. 2 in. under the transmission shop floor. This is shown in Figure 3. We now propose to expand this effort to secure soil samples from several elevations around the tank (vertical drilling), additional samples from under the tank(deeper), and to secure a ground water sample below the tank. Any future work, sampling or remediation, will be based on an evaluation of results from this study. i 2 r