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Mr Jim Woodward January 27, 1995 Page 2 All groundwater samples were analyzed for total petroleum hydrocarbons as gasoline (TPH-G), diesel fuel (TPH-D), motor oil (TPH-MO), and benzene, toluene, ethylbenzene, and xylene isomers (BTEX) using U S Environmental Protection Agency (EPA) Methods 8015 Modified and 8020 Results The groundwater flow direction on November 16 and 30, 1994, was to the southwest Water- level data are shown in Table 1 Groundwater flow directions and gradients are shown in Table 2 The groundwater flow direction for November 16, 1994, is shown on Figure 1, and the groundwater flow direction for November 30 is shown on Figure 2 Analytical results of the groundwater samples for this and previous quarters are summarized in Table 3 The November 16, 1994, analytical results are shown on Figure 3 Analytical laboratory data sheets are included in Exhibit A Analytical laboratory results identified BTEX compounds in the three groundwater samples at concentrations ranging from 15 micrograms per liter (µg11) to 2 4 µg11 of benzene, 6 5 to 11 gg/l of toluene, and 16 to 2 4 µg11 of ethylbenzene, and 9 4 to 14 µg/l of xylenes TPH-G was identified in the groundwater • samples collected from Wells MW-1 and MW-2 at concentrations of 56 µg11 and 65 µg/l, respectively TPH-D and TPH-MO were not identified in the groundwater samples collected from the three wells, above their respective analytical method reporting limits Discussion This is the first quarter in which TPH-G has been identified in the groundwater samples collected from the on-site wells This is also the first quarter in which BTEX compounds have been identified in the groundwater samples collected from Well MW-2 The concentrations at which TPH-G and BTEX have been identified are relatively low The presence of xylene in the groundwater beneath the Kent's Oil site has been observed historically Since gasoline products have not been stored at this site in the past, we believe that an off-site source may exist Draft Report—Use or disclosure of data contained on this sheet is subject to the restriction specified at the beginning of this docutnent