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}S <br /> 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 /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> APDS Services Client Project I D Unocal#0123, 1034 Central Ave,Tracy Sampled Sep 5, 1995 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descript Water Received Sep 5, 1995 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mad /8020 Reported Sep 19, 1995 <br /> Attention Sarkis Karkarian First Sample # 509-0207 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> Fig/L p9/L Ng/L Ng/L pg/L <br /> 509-0207 U 1 240 060 084 057 39 <br /> 509-0208 U2 ND ND 051 ND 077 <br /> 509-0209 U3 ND ND ND ND ND <br /> 509-0210 ES1 ND ND 061 ND ND <br /> . 509-0211 ES2 ND ND 056 ND ND <br /> 509-0212 ES3 ND ND ND ND ND <br /> Detection imi s 5o 050 0 50 030 050 <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 /> 4lignature on File <br /> Alan B Kemp <br /> Project Manager <br /> 5090207 MPD <1> <br />