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�TN Sequoia 680 Chesapeake Drive 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 /> qww Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> OMPDS Services Client Project ID Unocal#2859, 1665 Pacific Ave Stockton Sampled Aug 7, 1996 <br /> 2401 Stanwell Dr , Ste 300 Matrix Descript Water Received Aug 7, 1996 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mod /8020 Reported Aug 26, 1996 <br /> Attention Jarrel Crider First Sample# 608-0666 <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 pg/L pg/L pg/L erg/L <br /> 608-0666 MW-1 ND ND ND ND ND <br /> 608-0667 MW-2 290,000 3,200 52,000 8,900 38,000 <br /> 608-0668 MW-3 1,100 84 ND 26 50 <br /> 608-0669 MW-4 140 ND 057 076 072 <br /> • 608-0670 MW-5 ND ND ND ND ND <br /> 608-0671 MW-6 ND ND ND ND ND <br /> 608-0672 MW-7 ND ND ND ND ND <br /> 608-0673 MW-8 ND ND ND ND ND <br /> 608-0674 MW-9 ND ND ND ND ND <br /> Detection Limits 50 050 050 050 0 50 <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, #1894 <br /> 03nature on File <br /> Alan B Kemp <br /> Project Manager Page 1 of 2 <br /> 6080665 MPD <1> <br />