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In July 1988 , a Preliminary Report detailing the tank removal sampling program and outlining the recommended scope of work necessary to develop a problem assessment report was prepared. The scope of work specified the installation of three soil borings and three monitoring wells for the collection of both soil and groundwater samples. In May 1989, the activities de- tailed within the scope of work were implemented. 3 . 0 Field Activities The problem assessment field activities are summarized by the following. A complete description of the field activities is contained in Appendix A. During the time period from May 81 1989 through May 11, 1989, three soil boreholes and three monitoring wells were installed at the site (Figure 3) . From these installations, a total of twelve soil samples and three groundwater samples were collected. The soil and water samples collected analyzed for the following parameters: o Benzene, Toluene, Xylene & Ethylbenzene (BTX&E) - EPA Method 8020 (soils) Method 602 (water) . o Total Petroleum Hydrocarbons (TPH) (Heavy fraction) - EPA modified Method 8015. 4 . 0 Analytical Results The complete analytical results for all samples collected are contained an Appendix B. The following sections summarize the analytical results of the soil and groundwater samples. 4 . 1 Soil Samples A total of three boreholes were drilled at the site. The depth of each borehole is specified in the field report. From each borehole, soil samples were collected a 3 ' intervals and field screened using a HNu Photoionizer. The soil sampling effort is described in more detail in the Field Sampling Report contained in Appendix A. Specific samples were selected for analysis based on the field screening measurements of the soil samples collected from the depths specified in the scope of work. At a maximum, three soil samples were collected from each borehole. Each sample identification number includes location number and depth (i.e. BH2-12 = Sample from borehole #2 at a 12 ' depth) . Soil samples were also collected prior to each well installation from the unsaturated zone lying directly above the groundwater table. An exception to this protocol was experienced during the soil sampling at the MW--3 location. A soil sample collected from monitor well MW-3 was obtained from a depth of 6 ' beneath the ground surface (BGS) . It was collected at this depth due to a perched water zone which was encountered at a depth of 9 ' BGS. 4 -