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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 1a) 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> q1W Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 931 9600 FAX(916)921 0100 <br />*PDS Services Client Project ID Unocal#0187 437 E Miner Ave Stockton Sampled Aug 6, 1996 <br /> 2401 Stanwell Dr , Ste 300 Matrix Descript Water Received Aug 6, 1996 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mod /8020 Reported Aug 23, 1996 <br /> Attention Jarrel Crider First Sample # 608-0640 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> erg/L pug/L pg/L Mg/L pg/L <br /> 608-0640 U-1 1,300 260 ND 27 26 <br /> 608-0641 U-2 57 16 054 ND ND <br /> 608-0642 U-3 43,000 2,600 1,000 1,700 7,000 <br /> 608-0643 U-4 330 110 068 13 20 <br />. 608-0644 U-5 ND ND ND ND ND <br /> 608-0645 U-6 ND ND ND ND ND <br /> 608-0646 U-7 280 41 15 34 28 <br /> 608-0647 U-8 ND ND ND ND ND <br /> 608-0649 ES-1 ND ND ND ND ND <br /> 608-0650 ES-2 ND ND ND ND ND <br /> 608-0651 ES-3 ND ND ND ND ND <br /> etection Limfts 50 050 050 050 050 <br /> Total Purgeable Petroleum Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reporter!as ND were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> Oignature on File <br /> Alan B Kemp <br /> Project Manager Page 1 of 2 <br /> 6080640 MPD <1 <br />