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kn KLEINFELDER <br /> 5. LABORATORY RESULTS <br /> A total of four groundwater samples collected from monitoring wells MW-1 through MW- <br /> 4 were submitted for the following analysis during the Second Quarter 2005 sampling <br /> event <br /> • Benzene, Toluene, Ethylbenzene, Total Xylenes by EPA Method 8260 (BTEX), <br /> • Total Extractable Petroleum Hydrocarbons as referenced to Diesel (TPH-D) by <br /> EPA Method 8015B, and <br /> Total Purgeable Petroleum Hydrocarbons as referenced to Gasoline (TPH-G) by <br /> EPA Method 8015B <br /> For a summary of these findings, and previous groundwater sampling results, refer to <br /> Table 2 Included In the Appendix of this report In summary, TPH-D was detected from <br /> the groundwater sample collected from MW-1 at a concentration of 16 mg/I TPH-G <br /> was also detected In this groundwater sample at 3 4 mgh Ethylbenzene and total <br /> xylene were detected In groundwater collected from MW-1 at 1 7 µg11 and 0 94 µg11, <br /> respectively Benzene and Toluene were not detected In the groundwater sample <br /> collected from MW-1 None of the requested petroleum analytes were detected In <br /> groundwater samples collected from perimeter monitoring wells MW-2, MW-3 or MW-4 <br /> The laboratory analytical data sheets and chain of custody forms are Included in <br /> Appendix C <br /> 28209 T09/STO5R1323/DH Iv Page 8 of 12 <br /> Q2005, Kleinfelder, Inc October 21, 2005 <br />