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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 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> MPDS Services Client Project Ib Unocal#6981 4707 Pacific Ave,Stockton 0 1 2 &26/95 <br /> � ckt n Sampled 0/ 5 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descrlpt Water Received Oct 26, 1995 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mod /8020 Reported Nov 15, 1995 <br /> Attention Jarrel Crider First Sample # 510-2461 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> lug/L ug/L pg/L ,cg/L Fig/L <br /> 510-2461 MW-6 ND ND ND ND ND <br /> 510-2464 MW-9 ND ND ND ND ND <br /> 510-2465 MW-10 ND ND 063 ND 072 <br /> 510-2466 MW-11 ND ND ND ND ND <br /> • 510-2467 MW-12 ND ND ND ND ND <br /> 510-2468 MW-13 ND ND ND ND ND <br /> 510-2469 ES1 ND ND 069 ND 092 <br /> 510-2470 ES2 ND ND 059 ND 087 <br /> 510-2471 ES3 ND ND ND ND ND <br /> etection Gmits 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 /> Ognature on File <br /> Alan B Kemp <br /> Project Manager <br /> 5102461 MPD <1> <br />