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Analytical results for well UST-1 are shown on Table 2 - Analytical Results of Ground <br /> Water Samples and on the enclosed laboratory certificates of analysis. Ground water from <br /> UST-1 contained nondetectable concentrations of TPP as gasoline (Appendix ]B). IBTZEX <br /> constituents were also reported with concentrations for benzene of 4 micrograms per liter <br /> (µg/IL) or parts per billion(ppb), toluene of 3 ppb, and xylenes of 4 ppb. T H as diesel was <br /> reported at a concentration of 11 milligrams per Liter or mg/L or parts per million. <br /> Analysis of the trip blank accompanying the UST-1 sample reported nondetectable <br /> concentrations of all analytes Laboratory analytical documents are included as Appendix <br /> B. <br /> I <br /> 3.4.1 Discussion <br /> The ground water elevation calculated for well UST-1 has increased 0.4 feet relative to that <br /> reported for July 1993. This increase is likely due to seasonal changes. Ground water flow <br /> at the site is likely toward the actively pumping water supply wells, but the flow direction <br /> and gradient cannot be verified with the existing network of monitoring wells at the site. <br /> TPI[ as diesel, ethylbenzene, and xylenes were detectable in well DIST 1 at concentrations <br /> lower than that reported for July 1993. TPH as gasoline remained nondetectable. Benzene <br /> and toluene increased slightly relative to the July data, but are within the same magnitude <br /> of concentrations as the previous quarter. <br /> F\69254W\4QTRGWM RPT 6 EmmvonmenW Sconce&EA&mv-rw& Inc <br />