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SEQUOIA ANALYTICAL <br /> 819 Striker Avenue Suite 8 e Sacramento CA 95834 <br /> (916) 921 9600 a FAX (916) 921 0100 <br /> Alton Geoscience Client Project ID #42-0014, Cal Trans Sampled 3/30-31/92 <br /> 3035 Prospect Park Dr , Suite 80 Sample Descript Soil, MW-10, 46-46 5 Received Apr 1, 1992 <br /> Rancho Cordova, CA 95670 Analysis Method EPA 5030/8015/8020 Analyzed Apr 6, 1992 <br /> Attention Matthew Taylor Lab Number 204-0010 Reported Apr 8, 1992 <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 20 270 <br /> Benzene. 0 10 4 4 <br /> Toluene 0 10 17- <br /> Ethyl <br /> 7- <br /> Eth l Benzene 010 5 5 <br /> Xylenes 0 10 30 <br /> I <br /> I <br /> Low to Medium Boiling Point Hydrocaroons are quantitated against a gasane stancara <br /> Analytes reported as h4 D were not present above the stated limo of detection Because matrix effects and/or other factors <br /> required additional sample dilutron oetection limits for tn�s sample have been raised <br /> SEQUOIA ANALYTICAL <br /> Michael R Giles v f <br /> Laboratory Director <br /> 2040009 ALR <3> <br />