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a'x' if T Y Coca-Cola Enterprises - West USTEC Job No. 90054,03 BTEX concentrations from groundwater samples are reported in micrograms per liter (ug/1) which is equivalent to parts per billion, i•i i The analytical test results of the groundwater samples collected at the site indicate only minor { concentrations of dissolved phase contamination exist beneath the site. Free product was not observed in any of the groundwater monitoring wells. i E TPH as gasoline was not detected in the groundwater sample from MW-6, however, a diesel s TPH concentration of 64 ppb was reported. BTEX concentrations were not identified in the i groundwater at MW-6. 3 The groundwater analytical test results indicate that the lateral extent of the dissolved phase petroleum hydrocarbon contamination is somewhat larger than the contamination assessment „r•_ suggested. T11e present dissolved phase hydrocarbon groundwater plume is discussed in Section i 3.4.2. 3.4 HYDROCARBON DISTRIBUTION s The distribution of petroleum hydrocarbons in the soils and groundwater at the site is discussed in the following section. Free preduct was not observed by USTEC personnel during any of the F assessment work at the site. w 3.54.1 Distribution of Hvdrocarbons in the Soil r- s The distribution of petroleum hydrocarbons in the soil is illustrated at the depths indicated on Figures 10, I1, 12, and 13. The distribution patterns shown on the figures indicate the area of contamination is limited to the former gasoline UST location. The contaminated area is centered around boring B-1 and radiates out from B-1 about 15 feet to encompass B-2 through B-5. Total ? petroleum hydrocarbon concentrations aibove 100 ppm were found to be present in this location at depths down to 25 feet. --16 - - i F l