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ry Sequoia 0680 Chesapeake Drive Redwood City CA 9406(415) 364-9600 FAX(415) 364 9233 <br /> '+ 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Iwo <br /> Analytical <br /> 819 Sinker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> OLDS Services Client Project ID Unocal#5886,2701 W March Ln,Stockton Sampled Mar 7, 1997 <br /> 2401 Stanwell Dr , Ste 300 Matrix Descript Water Received Mar 7, 1997 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015 Mad /8020 Reported Mar 21, 1997 <br /> Attention Jarrel Crider First Sample# 703-0718 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with STEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> ,ug/L lig/L Ng/L ug/L Fig/L <br /> 703-0718 MW-1 ND ND ND ND ND <br /> 703-0719 MW-2 ND ND ND ND ND <br /> 703-0720 MW-3 ND ND ND ND ND <br /> • <br /> Detection Limits so 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 /> signature on File <br /> Alan B Kemp <br /> Project Manager Page 1 of 2 <br /> 7030718 MPD <1> <br />