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FRIEDMAN & BRUYA, INC. <br /> ENVIRONMENTAL CHEMISTS <br /> Date of Report October 8, 1996 <br /> Date Received September 25, 1996 <br /> Project 23-482276-BO <br /> Date Samples Extracted September 25, 1996 <br /> RESULTS FROM THE ANALYSIS OF SOIL SAMPLES <br /> FOR FINGERPRINT CHARACTERIZATION <br /> BY CAPILLARY GAS CHROMATOGRAPHY <br /> USING A FLAME IONIZATION DETECTOR (FID) <br /> AND ELECTRON CAPTURE DETECTOR (ECD) <br /> Sample ID GC Characterization <br /> SSB 1-21 (1166 7) The GC trace using the flame ionization detector (FID) <br /> and the GC electron capture detector (ECD) trace <br /> showed an absence of volatile and semi-volatile <br /> compounds The detection limit for this analysis is 20, <br /> 50 and 100 ppm for gasoline, diesel and motor oil, <br /> respectively. <br /> The large peak seen near 25 minutes on the GC/FID <br /> trace is pentacosane, added as a quality assurance <br /> check for this GC analysis There is a second <br /> surrogate present that is seen on the GC/ECD trace at <br /> about 26 minutes which is dibutyl chlorendate <br /> SSB2-20 (11666) The GC trace using the flame ionization detector (FID) <br /> showed the presence of medium boiling compounds <br /> The patterns displayed by these peaks are indicative <br /> of a mixture of Diesel#1/kerosene and a less <br /> weathered Diesel#2/home heating oil. <br /> The medium boiling compounds appeared as a regular <br /> pattern of peaks eluting from n-C 1Q to n-C25 showing <br /> a maximum near n-C1 A regular pattern of the n- <br /> alkanes is seen for Lesel#2/home heating oil An <br /> dominant pattern of n-alkanes was not seen on the <br /> GC/FID trace for the Diesel#1/kerosene <br /> The large peak seen near 25 minutes on the GC/FID <br /> trace is pentacosane, added as a quality assurance <br /> check for this GC analysis. There is a second <br /> surrogate present that is seen on the GC/ECD trace at <br /> about 2C minutes which is dibutyl chlorendate <br />