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..7 <br /> SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (415) 686-9600 0 FAX (415) 686-9689 <br /> p Alton Geoscience Client Project ID: 30-136-01 Sampled. Aug 21, 1991 <br /> 1000 Burnett St., #140 Matrix Descript. Water Received: Aug 22, 1991 <br /> Concord, CA 94520 Analysis Method. EPA 5030/8015/8020 Analyzed 8/26,28,29/91 <br /> Attention: Tridib Guha First Sample # 108-1125 AC Reported Aug 29, 1991 <br /> s <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 /> Pg/L pg/L Ng/L N9/L Pg/L <br /> (Ppb) (Ppb) (ppb) (ppb) (Ppb) <br /> 108-1125 AC AW-3 620 N.D. N.D. N.D. 0.70 <br /> Detection Umits: 60 0.60 0.60 0.80 0.60 <br /> ���di �•l• �} L1...1i'S+.a'f•"ivi i.,are:t--wntS1etof agetnet a gasp-line Anda d�. <br /> {tiw 1v rw,Tr i ii�yvu i r r>>.+ <br /> Analytes reported as N.D.•were not present above the stated limit of detection. Because matrix effects acid/or other factors <br /> Wood additional sample dilution,detection limits for this sample have been raised. <br /> CUOIA ANALYTIC I'fease hints: <br /> The above samples do not appear to contain gasoline. <br /> ul R. Malerstein <br /> Pr led <br /> Manager 1081123ALO <2> <br />