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32 Analytical Results <br /> • <br /> ' In the 19 groundwater samples collected during the CPT investigation, only three samples <br /> contained 1,2-DCA at concentrations ranging from 0 5 to 1 2 µg/l, and one sample contained <br /> ' TPH-as-gasoline at a concentration of 140 µg/l According to the laboratory report, the TPH-as- <br /> gasoline detection did not exhibit a typical gasoline chromatograph pattern The oxygenate <br /> compounds, EDB and BTEX were not detected in any of the samples The analytical results are <br /> summarized in Table 3, and the laboratory report is included in Appendix E <br /> ' The groundwater samples collected from six of the ten monitoring wells contained the gasoline <br /> compounds MTBE and 1,2-DCA The highest concentrations (300 µg/I of MTBE and 24 µg11 of <br /> 1,2-DCA) were detected at MW-7 No other gasoline compounds were detected in any of the <br /> wells The groundwater samples collected from MW-8A and MW-813 and from Irrigation Well #2 <br /> did not contain detectable concentrations of gasoline compounds The cumulative analytical <br /> ' results are summarized in Table 2, and the laboratory reports are included in Appendix E <br /> 13 <br />