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SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> (916) 921-9600 • FAX (916) 921-0100 <br /> RESNA Industries Client Project ID Arco #6100, Tracy, CA Sampled Oct 10, 1991 <br /> 3164 Gold Camp Drive, Suite 200 Sample Descript Soil, S-35-B10 Received Oct 14, 1991 <br /> Rancho Cordova, CA 95670 Analysis Method EPA 5030/8015/8020 Analyzed Oct 18, 1991 <br /> Attention David Stavarek Lab Number 110-0136 Reported Oct 28. 1991 <br /> TOTAL PETROLEUM FUEL HYDROCARBONS WITH BTEX DISTINCTION (EPA 8015/8020) <br /> Analyte Detection Limit Sample Results <br /> mg/kg (Ppm) m9/k9 (ppm) <br /> Low to Medium Boiling Point Hydrocarbons............. 50 ..................._................ 3,800 <br /> Benzene. ....«.. .... ..._ G.25 ..................................... 4,7 <br /> Toluene. . ........... ................................. .......,....... 0.25 ..................,........ ........ 38 <br /> EthylBenzene.. ....................................................... 0.25 ......,.,.,....,,,....,.,.,.,., 22 <br /> X lenes 0.25 .. ... 1.10 <br /> I <br /> I� <br /> F <br /> it <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard <br />�. Analytes reported as N D were not present above the stated limit of detection Because matrix effects and/or other factors <br /> required additional sample dilution,detection limits for this sample have been raised <br /> SEQUOIA ANALYTICAL <br /> L�Iw// 4 <br /> Michael R Giles <br /> Laboratory Director 1100129 RES <s> <br />