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■ Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 4D404 N W�get Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510) 988 9673 <br /> X117 Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916) 921 0100 <br /> MPDS Services Client Project ID Unocal#6981,4707 Pacific Ave,Stockton Sampled JUI 24, 1996 <br /> 2401 Stanwell Dr, Ste 300 Matrix Descript Water Received Jul 25, 1996 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mad /8020 Reported Aug 7, 1996 <br /> Attention Jarrel Crider First Sample# 607-1870 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> Ing/L pg/L Ng/L fig/L pg/L <br /> 607-1870 ES-1 ND ND ND ND ND <br /> 607-1871 ES-2 ND ND ND ND ND <br /> 607-1872 ES-3 ND ND ND ND ND <br /> Detection Limits 50 0.50 050 056- 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 /> ofEQUOIA ANALYTICAL, #1271 <br /> Signature on File <br /> Alan B Kemp <br /> Project Manager Page 1 of 2 <br /> 6071861 MPD <3n <br /> ,9CA <br />