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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364-9233 <br /> 404 N W,get Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988-%73 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921-0100 <br /> PDS Services Client Project ID Unocal#6961,4707 Pacific Ave Stockton Sampled Jan 24, 1996 <br /> 2401 Stanwell Or , Ste 300 Matrix Descript Water Received Jan 25, 1996 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mod /8020 Reported Feb 9, 1996 <br /> Attention Jarrel Crider First Sample# 601-1548 <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 Vg/L ug/L <br /> 601-1548 MW-11 NO NO NO NO NO <br /> 601-1549 MW-12 NO NO ND ND NO <br /> 601-1550 MW-13 NO NO NO NO NO <br /> 601-1551 ES1 NO NO NO NO NO <br /> • 601-1552 ES2 NO NO NO NO NO <br /> 601-1553 ES3 NO ND NO ND NO <br /> Detection Limits 50 050 0 50 056 050 <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 /> aQUOIA ANALYTICAL, #1271 <br /> Signature on File <br /> Alan B Kemp <br /> Project Manager Page 1 of 2 6D11536 MPD �3� <br />