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kl 11I.RI i'dI rr,,:r.r, S,vi zr i,l t"'' I.du 1.i In..xirFvh<vr I l:r,._.r,h II.I.sr.tiLsr rrs- tis.klu.ls. l-a U.crud+cr II. Lrv7 I sf. fa measurement IEcld form in Appendix C and are also sho-oyn in Figure 9. Appendix A. Figure 9 shows the csomated gruunciwatcr elevation contours on September 18, 1997. The contours indicate a very steep ground�Nater gradient generally towards the southeast. 15.0 CONCLUSIONS/IZECON9NIENDATIONS ' Analysis of- thc soil sample collected at approximateiy 6 feet bgs from the monitor well MW-1 boring indicated that TPH-G. BTEX, TEPH constituents, and the gasoline additives/oxygenates were ' not detected at or above the laboratory reported detection limits. Analysis of the soil sample collected at approximately 4 feet bgs from the monitor well MW-2 boring indicated that toluene was present at ' 16 pg/kg, TPH-G was present at 1.2 mg/kg, and MTBE was present at 1,300 pg/kg. TEPH constituents, BEX, and the gasoline additives/oxygenates other than MTBE were not detected at or above the laboratory reported detection limits in the soil sample collected at approximately 4 feet bgs from the monitor well MW-2 boring. Analysis of the soil sample collected at approximately 6 feet bgs from the monitor N\ell IW-4 boring indicated that ethyl benzene was present at 690 pg/kg, total xylenes were present at 6,000 pgfkg, and TPH-G «as present at '_$ rnglkg. TEPH constituents, benzene, toluene, and the gasoline additives oxygenates were not detected at or above the laboratory reported detection limits in the soil sample collected at approximately 6 feet bgs from the monitor well M\V-2 boring. Analysis of the groundwater sample collected from monitor well MW-1 indicated that BTEX, ' TPH-G, TEPH constituents, and the gasoline additives/oxygenates were not detected at or above the laboratory reported detection limits. Analysis of the groundwater sample collected from monitor well ' MW-2 indicated that benzene was present at 0.4 pg/l, total xylenes were present at 1.5 pg/l, MTBE was present at 550 pg/1, tertiary butanol was present at 72 pg/l, and TAME was present at 3.6 pg/1. ' TEPH constituents, TPH-G, toluene, ethyl benzene, ethanol, DIPE, and ETBE were not present at or above the laboratory reported detection limits. Analysis of the groundwater sample collected from monitor well MW-3 indicated that MTBE was present at 7.9 pg/l. TEPH constituents, BTEX, TPH-G and the other gasoline additives/oxygenates were not detected at or above the laboratory reported ' detection limits. Analysis of the groundwater sample collected from monitor well MW-4 indicated that benzene was present at 1.6 pg/l, toluene was present at 0.4 pg/1, ethyl benzene was present at 2.0 pg/l, total xylenes were present at 22 pg/l, MT13E was present at 14 pg/l, and TPH-G �%as present at ' � CONDOR