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Sequoia 680 Chesapeake Drive Redwood Guy,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 /> qkPI)S Services Client project ID Unocal#0187 437E Miner Ave Stockton Sampled Nov 8, 1995 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descript Water Received Nov 8, 1995 <br /> Concord, CA 94,520 Analysis Method EPA 5030/8015 Mod /8020 Reported Nov 27, 1995 <br /> Attention Jarrel Crider First Sample # 511-1008 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> pg/L pg/L pg/L pg/L pg/L <br /> 511-1008 ES1 ND ND 057 ND 056 <br /> 511-1009 ES2 ND ND 063 ND ND <br /> 511-1010 ES3 ND ND ND ND ND <br />• <br /> Detection Limits 96 050 0 50 050 050 <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 />*gnature on File <br /> Alan B Kemp <br /> Project Manager <br /> 5110999 MPD ¢3> <br />