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L <br /> F. Y <br /> 1 LABORATORY NARRATIVE <br /> L TO-3 <br /> Geological Technics <br /> Workorder#0202104 <br /> I � <br /> Two 1 Liter Tedlar Bag samples were received on February 06, 2002. The laboratory performed analysis via <br /> modified EPA Method TO-3 for Methyl tert-Butyl Ether (MTBE), Benzene, Toluene, Ethylbenzene, Xylenes <br /> and Total Petroleum Hydrocarbons (TPH). MTBEBTEX was analyzed via GC/PID and TPH via GC/FID. The <br /> } TPH results are calculated using the response of Gasoline. A molecular weight of 100 is used to convert the <br /> 1 TPH ppmv result to ug/L. The method involves concentrating up to 200 mL of sample. The concentrated aliquot <br /> is then dry purged to remove water vapor prior to entering the chromatographic system. See the data sheets for <br /> the reporting limits for each compound. <br /> Receiving Notes ` <br /> There were no receiving discrepancies. <br /> ancies. <br /> Analytical Notes <br /> There were no analytical discrepancies. <br /> i <br /> I <br /> Definition of Data OualiWag Flags <br /> -, Seven qualifiers may have been used on the data analysis sheets and indicate as follows: <br /> B- Compound present in laboratory blank greater than reporting limit. <br /> J- Estimated value. <br /> 1 E- Exceeds instrument calibration range. <br /> S - Saturated peak. <br /> Q - Exceeds quality control limits. <br /> U - Compound analyzed for but not detected above the detection limit. <br /> { M- Reported value may be biased due to apparent matrix interferences. <br /> Page 2 of 7 <br />