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SEQUOIA ANALYTICAL <br /> 819 Striker Avenue Suite 8 • Sacramento CA 95834 <br /> (916) 921 9600 o FAX (916) 921-0100 <br /> Alton Geoscience Client Project ID #42-0012-00, 1604 South 8 St Sampled 3/24-25/92 <br /> 3035 Prospect Pa-k Or Suite 80 Sample Descript Sall MW3 46-46 5 Received Mar 25, 1992 <br /> Rancho Cordova, CA 95670 Analysis Method EPA 5030/8015/8020 Analyzed Mar 30, 1992 <br /> Attention Matthew Tavlor Lab Number 2030534 Reported Apr 1, 1992 <br /> TOTAL PETROLEUM FUEL HYDROCARBONS WITH BTEX DISTINCTION (EPA 8018/8020) <br /> Analyte Detection Limit Sample Results <br /> mg/k9 (ppm) mg/kg (ppm) <br /> ow to Medium Boiling Point Hydrocarbons 50 30 <br /> Benzene 0 025 N D <br /> Toluene.... .. .. 0 025 <br /> Ethyl Benzene 0'073 <br /> 0 025 0 038 <br /> Xylenes . . . <br /> 0 025 1.4 <br /> Low to Medium Boihrg Point Hydrocarbons are quantitated against a gasoline standard <br /> Analytes reported as N D were not present above the stated lima 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 /> Michael R Giles <br /> Laboratory Director <br /> 2030521 ALR <3> <br />