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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-4 were <br /> submitted for the following analysis during the third quarter 2003 sampling event <br />' • Benzene, Toluene, Ethylbenzene, Total Xylenes by EPA Method 8260 (BTEX), <br />' • Total Extractable Petroleum Hydrocarbons as referenced to Diesel (TPH-D) by EPA Method <br /> 8015B, <br /> • Total Purgeable Petroleum Hydrocarbons as referenced to Gasoline (TPH-G) by EPA Method <br /> 8015B, <br /> For a summary of these, and previous groundwater sampling results, refer to Table 2 included in <br /> the Appendix of this report In summary, TPH-D was detected from the groundwater sample <br /> collected from MW-1 at a concentration of 32 mg/1 TPH-G was detected in this groundwater <br />' sample at 1 9 mg/l as well as ethylbenzene at a concentration of 0 57 µg/1 No other requested <br /> analytes were detected in the groundwater sample from MW-1 TPH-D was detected at a trace <br /> concentration of 0 14 mg/l from the groundwater sample collected from MW-2 None of the <br /> requested petroleum analytes were detected in groundwater samples collected from perimeter <br /> momtonng wells MW-3 and MW-4 A complete summary of our laboratory analytical results is <br /> included as Appendix C <br /> 1 <br /> 1 <br /> 1 <br /> 28209 T03/ST03RI81 l Page 8 of I I <br /> OO 2003 Kleinfelder, Inc December 29,2003 <br />