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a�_ Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921-9600 FAX(916)921 0100 <br />*PDS Services Client Project ID Unocal#5098,5606 Pacific Ave ,Stockton Sampled Jun 21, 1995 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descript Water Received Jun 21, 1995 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mod /8020 Reported Jul 11, 1995 <br /> Attention Sarkis Karkarlan First Sample # 506-1985 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> Fig/L Ing/L pg/L pg/L Fig/L <br /> 506-1985 MW 10 ND ND ND ND ND <br /> 506-1986 MW 11 71,000 15,000 19,000 1,500 12,000 <br /> 506-1987 MW 12 9,600 800 230 300 740 <br /> 506-1988 MW 13 ND ND 099 ND 079 <br /> 506-1989 MW 14 ND ND ND ND ND <br /> 506-1990 MW 15 ND ND ND ND ND <br /> Detection Limits 50 050 050 050 050 <br /> Total Purgeable Petroleum Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as ND were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> egnature on File <br /> Alan B Kemp <br /> Project Manager <br /> 5061985 MPD <1> <br />