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r a 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 /> 819 Striker Avenue Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> �„� Analytical <br /> GPDS Services Client Project 10 Tosco#6981 4707 Pacific Ave ,Stockton Sampled Jul 16-17, 97 <br /> 01 Stanwell Dr, Ste 300 Sample Descript Water Received Jul 17, 1997 <br /> Concord, CA 94520 Analysis for MTBE (Modified EPA 8020) <br /> Attention Jarrel Crider First Sample # 707-0934 Analyzed Jul 24-28, 97 <br /> Reported Jul 31, 1997 <br /> LABORATORY ANALYSIS FOR; MTBE (Modified EPA 8020) <br /> Sample Sample Sample <br /> Number Description Detection Limit Result <br /> Ng/L pg/L <br /> 707-0934 MW-1 50 N D <br /> 707-0935 MW-2 250 N D <br /> 707-0936 MW-4 50 N D <br /> 707-0937 MW-5 50 34 <br /> • 707-0938 MW-6 50 N D <br /> 707-0939 MW-7 50 40 <br /> 707-0940 MW-8 50 N D <br /> 707-0941 MW-9 so N D <br /> 707-0942 VW-1 50 N D <br /> 707-0943 VW-3 50 14 <br /> 707-0944 VW-4 50 51 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> Oture on File <br /> Alan 8 Kemp <br /> Project Manager <br /> 7070934 MPD t3> <br />