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Sequoia 0 Chesapeake Drive Redwood Qty,CA 94063 60) 364 9600 FAX(656)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (530) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Stnker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> Gettler Ryan/Geostrategies Client Prol ID Unocal SS#0187 - -__-- - Sampled 02/13/98��� <br /> 6747 Sierra Court Suite J Sample Descript U-8 Received 02/17/98 <br /> Dublin, CA 94568 Matrix LIOUID <br /> Analysis Method 8015Mod/8020 Analyzed 02/26/98 - <br /> Attention Deanna Harding Lab Number 9802A45-09, Reported 03102198 - <br /> OC Batch Number GCO22698802004A - ' - -- ------=- <br /> Instrument ID GCHPO4 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N D <br /> Methy!t-Butyl Ether 25 N D <br /> Benzene 0 50 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trlfluorotoluene 70 130 103 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detamon <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> eory <br /> Project Manager <br /> Page 9 <br />