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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 • FAX (415) 364-9233 <br /> Delta Environmental Consultants Client Project ID 620 W Charterway, Shell Sampled Jan 28, 1992 <br /> 3330 Data Drive Matrix Descrlpt Water Received Jan 29, 1992 <br /> Rancho Cordova, CA 95670 Analysis Method EPA 5030/8015/8020 Analyzed 1/31-2/3/92 <br /> -Attention Scott Romine First Sample# 201-4649 Reported Feb 7, 1992 <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 /> Fig/L N9/L p9/L Fig/L Ftg/L <br /> (ppb) (ppb) (ppb) (ppb) (ppb) <br /> 201-4649 MW-6 N D N D N D N D N D <br /> 201-4650 MW-10 83 11 049 046 N D <br /> 201-4652 MW-3 22,000 2,400 820 460 410 <br /> 201-4653 MW-5 34,000 9,200 440 830 1,200 <br /> 201-4654 MW-8 17,000 5,000 120 140 260 <br /> 201-4655 MW-9 200,000 25,000 24,000 2,700 18,000 <br /> Detection Limits. 30 030 030 030 030 <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 <br /> Maile A Springer <br /> Project Manager 2014649 DLT <1> <br />