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4D Sequoia 680 Chesapeake Dave 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 /> I&P Analytical 819 Sinker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921-0100 <br /> *PDS Services Client Project ID Unocal#0187,437 E Miner Ave ,Stockton Sampled Nov 8, 1995 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descript Water Received Nov 8, 1995 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mod /8020 Reported Nov 27, 1995 <br /> Attention Jarrel Crider First Sample# 511-0999 <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 Fig/L ug/L Fig/L !ig/L <br /> 511-0999 U-1 2,100 38 59 42 45 <br /> 511-1000 U2 150 17 <br /> 068 032 079 <br /> 511-1001 U3 28,000 2,400 1,400 1,900 4,900 <br /> 511-1002 U4 440 49 12 066 230 <br /> 511-1003 U5 ND ND 053 ND ND <br /> 511-1004 U6 ND ND 058 ND ND <br /> 511-1005 U7 12,000 1,600 44 1,500 2,400 <br /> 511-1006 U8 170 ND 051 076 12 <br /> Detection imits 50 050 030 050 0 50 <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 /> 09nature on File <br /> Alan B Kemp <br /> Project Manager <br /> 5110999 MPD <1� <br />