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r <br /> f. <br /> I � <br /> Kiff analyzed the groundwater samples for Total Petroleum Hydrocarbons (TPH -as- asoline <br /> , <br /> benzene, toluene, ethylbenzene, xylenes (BTEX) and methyl-tertiary-butyl ether (MTBE) by EPA <br /> Methods 8015M and 8020. The laboratory reports and chain-of-custody documents are included <br /> f. as Appendix A. <br /> IIh Analytical results of the groundwater samples indicate that dissolved concentrations of gasoline <br /> hydrocarbons continue to exist in groundwater beneath the site. Groundwater sampled from <br /> VW-2 contained 440 parts per billion (ppb) of TPH-as-gasoline, 1 ppb of toluene, 52 ppb of <br /> ethylbenzene and 530 ppb of MTBE. Groundwater sampled from VW-1 contained 200 ppb of <br /> TPH-as-gasoline and 7.5 ppb of MTBE. Groundwater sampled from MW-6 and MW-7 did not <br /> L9 contain detectable concentrations of TPH-as-gasoline, BTEX or MTBE. The current and <br /> historical analytical results are summarized in Table 2. <br />� F <br /> t. <br /> LIZ� <br /> �f <br /> I <br /> 5 <br /> E <br /> T <br /> h <br />