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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM d Concord,California 94520 <br /> i (510)686.9066 FAX (510),386-9689 <br /> Sam lad: Sep9, 1991 <br /> ERM-West(Sacramento] Client Project ID: Catellus-Stockton#1221.07 Received: SOP 10, 1991 <br /> 2001 .,Street,Suite 200 Matrix Descrlpt: Water Analyzed: Sep 13, 1991 <br /> Sacramento,CA 95814 Analysis Method EPA 5030/8015/8020 Yz <br /> First Sampleet#: 109-0777 AB Reported Sep 27.. 199 <br /> Attentlon: Shannon Sadler <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with STEX DISTINCTION (EPA 8015/8020) <br /> Sample Sample Low/Medium B.P. Ethyl <br /> p Hydrocarbons Benzene Toluene Benzene Xylenes <br /> Number Description Y pg1L pg/L pg/L Ng/L pg/L <br /> (ppb) (Ppb) (ppb) (Ppb) (ppb) <br /> 109-0777 AS Mw-a <br /> 810 1.2 2.8 12 N.D. <br /> Detection Limits: <br /> 120 1,2 1.2 1.2 1.2 <br /> Low to Medium leoiling Point Hydrocarbons are quantitated against a gasoline standard. <br /> Analytes reported as N.D.were net present above the stated limit of detection. aeeause matrix affects and/or other factors <br /> required additional sample dilution,detection limits for this sample hava been raised. <br /> _-....._..-SI=OUOIA ANALYTICAL <br /> Ju la R.Malerstein 1090776.ERS <2> <br /> o)ect Manager <br />