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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686 <br /> -9600 FAX (510) 686-9689 J yY Q tOQ? <br /> Afton Geosclence Client Project ID: 04-M/30-136-01 Sampled: Nov 26, 1991. <br /> r <br /> 1000 Burnett Ave. Suite 140 Matrix Descript: Water Received: Nov 27, 1991,: <br /> F„Concord,CA 94520 Analysis Method: EPA 5030/8015/8020 Analyzed: Dec 4, 1991 <br /> Attention: Tridib Guha First Sample #: 111 13519, <br /> Reported <br /> 1991 <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with BTEX DISTINCTION (EPA 8015/8020) <br /> Sample Sample Low/Medium B.P. Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> Ng/L pg/L N9/L rug/L pg/L <br /> (ppb) (ppb) (ppb) (ppb) (ppb) <br /> 111-1351 AW-1 N.D. N.D. N.D. N.D. N.D. <br /> 111-1352 AW-2 N.D. N.D. N.D. N.D. N.D. <br /> 111-1353 AW-39 610 N.D. N.D. N.D. 0.48 <br /> 111-1354 AW4 N.D. N.D. N.D. N.D. N.D. <br /> 111-1355 AW-5 N.D. N.D. N.D. N.D. N.D. <br /> 111-1356 AW-6 N.D. N.D. N.D. N.D. N.D. <br /> 111-1357 Awl N.D. N.D. N.D. N.D. N.D. <br /> 111-1358 AW-8 N.D. N.D. N.D. N.D. N.D. <br /> Detection Limits: 30 0,30 0.30 0.30 0.30 <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, <br /> . SEQUOIA ANALYTICAL Please Note: <br /> *The above sample does not appear to contain gasoline. LM8P Hydrocarbons <br /> ars the result of High B.P.hydrocarbon fuel. <br /> &Omtt A. Chleffo Revised re -5/5192 <br /> Project Manager <br /> 1111351-ALG <1> <br />