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• Environmental <br /> Mr.Michael J.Infurna Resources <br /> 9 November 2004 Management <br /> Page 2 <br /> United States Environmental Protection Agency (USEPA) Method 8015 <br /> Modified. Samples in which TPH was detected above the laboratory <br /> reporting limit were also analyzed for the following constituents: <br /> Benzene, toluene, ethylbenzene, and total xylenes (BTEX) by USEPA <br /> Method 8021B; and <br /> • Polynuclear aromatic hydrocarbons (PAHs) by USEPA Method 8270. <br /> Analytical results are summarized on Table 1 and the complete analytical <br /> report is provided in Appendix A. <br /> INVESTIGATION RESULTS <br /> An unidentified TPH compound in the diesel range was detected above <br /> laboratory reporting limits in the soil sample collected from boring SB-1 <br /> at 1 foot bgs. TPH was detected in this sample at a concentration of <br /> 1.4 milligrams per kilogram. The laboratory reported that the TPH <br /> detected did not match the typical diesel pattern and that it did not <br /> resemble any other petroleum hydrocarbon pattern for which the <br /> laboratory had a standard. BTEX and PAHs were not detected above <br /> laboratory reporting limits in this sample. TPH was not detected above <br /> laboratory reporting limits in the remaining three soil samples collected <br /> during the investigation. In addition, no field evidence of petroleum <br /> hydrocarbon impacts in soil (e.g., staining or odor) was noted during the <br /> drilling activities. <br /> CONCLUSIONS <br /> Based on the relatively low detection of TPH in one shallow soil sample <br /> during the subsurface investigation, no additional investigation of the <br /> property appears to be warranted. <br />