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• Total petroleum hydrocarbons as gasoline (TPHg)by EPA method 8015. <br /> • Benzene,toluene, ethylbenzene and xylenes (BTEX) by EPA method 8260B. <br /> • The fuel oxygenates: methyl tertiary butyl ether (MTBE), di-isopropyl ether(RIPE), ethyl <br /> tertiary butyl ether(ETBE),tertiary amyl methyl ether(TAME), and tertiary butanol(TBA) <br /> by EPA method 8260B. <br /> Soil sample analytical results were reported below method detection limits for all analyzed <br /> constituents with the exception of MTBE. This analyte was present in one of the six soil samples <br /> (S-2) at a concentration of 0.009 milligrams per kilogram. <br /> laboratory results indicate that the soil was not significantly impacted by the product spill. No <br /> further investigation should be required. <br /> Should you have any questions, please contact the undersigned at(916) 861-0400. <br /> Sincerely, <br /> SECOR International Incorporated <br /> Danielle Catlin Jo n E. Bower, R.G. <br /> Staff Scientist Principal Geologist <br /> Attachments: <br /> Figure 1 —Soil Sample Location Map <br /> Laboratory Analytical Results and Chain of Custody Documentation <br /> Projects\Time0il-Mameca\Spill Letter.do April 8,2002 <br />