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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> Analytical 1900 Bates Avenue,Suite L Concord, CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> qwr819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> OMPDS Services Client Project IlD Unocal#2859, 1665 Pacific Avenue,Stockton Sampled Feb 7, 1995 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descript Water Received Feb 7, 1995 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported Feb 23, 1995 <br /> Attention Sarkis Karkarian First Sample# 502-0605 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Chromatogram DL Mult Date Instrument Surrogate <br /> Number Description Pattern Factor Analyzed ID Recovery, % <br /> QC Limits <br /> 70-130 <br /> 502-0605 MW1 -- 10 2/21/95 HP-4 89 <br /> 502-0606 MW2 Gasoline 400 2/13/95 HP-2 103 <br /> 502-0607 MW3 Gasoline 10 2/13/95 HP-2 100 <br /> 502-0608 MW4 Gasoline 10 2/13/95 HP-2 101 <br /> 502-0609 MW5 Gasoline 10 2/13/95 HP-2 103 <br /> 502-0610 MW6 -- 10 2/13/95 HP-2 105 <br /> 502-0611 MW7 -- 10 2/13/95 HP-2 103 <br /> 502-0612 MW8 Discrete Peaks* 10 2/13/95 HP-2 101 <br /> 502-0613 MW9 Discrete Peaks* 10 2/13/95 HP-2 104 <br /> SEQUOIA ANALYTICAL, #1271 Please Note <br /> ile *`Discrete Peaks"refers to unidentified peaks in the EPA 8010 range <br /> Signature on File <br /> Alan B Kemp <br /> Project Manager <br /> 5020605 MPD <2> <br />