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M-1 3. DISCUSSION OF RESULTS, 3.1 ANALYTICAL RESULTS The—analytical results are iuwunar4zed In Tables 1, 2, 3, and 4. The distributions of dissolved petroleum hydrocarbons in groundwater are represented by Figures 3 through 7, and the distribution of total petroleum hydrocarbons (TPH) in roils are represented by Figures 8 through 12. Figures 3 through 7 Indicate that the highest concentrations of dissolved constituents In the groundwater are around W4 and MO. The concentrations of dissolved constituents decline with distance from Kr13 and K44 and the tank excavation. The concentrations of dissolved petroleum hydrocarbons at the western and northern property boundaries are less than or near 0.0002 mg/L, the detection limit for the aromatic hydrocarbons. The concentrAtions of BTEX are lower toward the eastern and southern property boundaries but have not diminished to concentrations below 0.0002 mg/L establishing a zero line. Concentrations greater than I mg/L are represented by contours on Figures 3 through 6 limited to an area northeast of the former tankfield and MW4 and MW3. Concentrations of TPH greater than 1 mg/L, are reprezented by an isoconcentration contour around the full extent of the former tank field and the area immediately north of the former tank field. The extent of contaminated soils is much more limited than the extent of contaminated groundwater. The contaminated soils are represented by the 100 mg/kg isoconcentration contour on Figures 8 through 27. Figure 8 is a representation of the extent of contaminated soils at a depth of 16 feet below the ground surface; each of the succeeding figures to Figure 12 represent a level 5 feet deeper than the previous figure. The contaminated soils appear to around Y ar V3, W44, and V5. The contaminated soils do not extend in any direction to the vp.por extraction wells placed beyond the northern, western, and n,