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Sequoia680 Chesapeake Dnve 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 /> �I, r4[l <br /> PDS Services Client Project ID Unocal#2859 1665 Pacific Ave,Stockton Sampled Nov 14, 1996 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descript Water Received Nov 15, 1996 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mod /8020 Reported Dec 9, 1996 <br /> Attention Jarrel Crider First Sample # 611-1573 <br /> TOTAL PURCEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> pg/L pg/L !-ig/L !ig/L pg/L <br /> 611-1573 MW-1 ND ND ND ND ND <br /> 611-1574 MW-2 180,000 4,200 50,000 9,900 39,000 <br /> 611-1575 MW-3 120 15 071 094 22 <br /> 611-1576 MW-4 250 12 22 24 51 <br /> 611-1577 MW-5 ND ND ND ND ND <br /> 611-1578 MW-6 ND ND ND ND ND <br /> 611-1579 MW-7 ND ND ND ND ND <br /> 611-1580 MW-8 ND ND ND ND ND <br /> 611-1581 MW-9 ND ND ND ND ND <br /> etection Limits 60 050 050 050 050 <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 /> Signature on File <br /> Alan B Kemp <br /> Project Manager Page 1 of 2 <br /> 6111573 MPD <1 <br />