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Sequoia 680 Chesapeake Drive Redwood City CA 94069 (415) 364 9600 FAX(415) 364 9233 <br /> �V^ 404 N Wiget Lane Walnut Creek, CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Sinker Avenue Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> EA Engineering Client Prof ID«- Exxon 7-0137%5150137 « Y« -- Sampled 07/16/964 <br /> PE 3841 N Freeway Blvd, Ste 145 Sample Descript MW-4 Received 07/17/96 <br /> '_! Sacramento, CA 95834 Matrix LIQUID <br /> i Analysis Method 8015Mod/8020 Analyzed 07/24/96 <br />' <br /> en <br /> ;_Atttion K_y_riacous Ky_r1_acou Lab Number 9607969-06 _ Reported7/ <br /> _ 029/96 -- ---��' ....««.«.......3�-� _.-««.»«».............ii»'•..........«»......... _� « <br /> QC Batch Number GC072496BTEX03A <br /> Instrument ID GCHP03 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br />' TPPH as Gas 50 N D <br /> Benzene 050 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br />' Surrogates Control Limits% %% Recovery <br /> Trifiuorotoluene 70 130 81 <br /> 1 <br />' Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> r <br /> *vin Follett <br /> Project Manager Page 17 <br /> r� <br />