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` 4IN Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> �I,� Analytical 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> 819 Stnker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> QSDS Services Client Project 10 Unocal#0187,437 E Miner Ave,Stockton Sampled May 9, 1995 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descnpt Water Received May 9, 1995 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported May 24, 1995 <br /> Attention Sarkis Karkarian First Sample # 505-1049 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> u9/L pg/L uJ/L pg/L Fig/L <br /> 505-1049 U1 3,600 170 23 120 140 <br /> 505-1050 U2 91 83 066 1 5 33 <br /> 505-1051 U3 53,000 7,600 3,900 2,600 11,000 <br /> I <br /> i <br /> Detection Limits so 050 060 050 050 <br /> Total Purgeable Petroleum Hydrocarbons are quantitated against afresh gasoline standard <br /> Analytes reported as ND were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #2000 <br /> Ognature on File <br /> Alan B Kemp <br /> Project Manager <br /> 5051049 MPD <1> <br />