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Sequoia 680 Chesapeake Dave Redwood City CA 94063 (650) 364-%00 FAX(650) 364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> a- ) <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 `916)92I-9600 FAX(916)921-010 0 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 707 792-1865 FAX 707)792-0342 <br /> " Blaine Tech Services Client Proj ID Shell 2575 Country Club Blvd Sampled 07/29/98 <br /> _ 1680 Rogers Avenue Sample Descript 2468 CC (7 30) Received 07/30/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/10/98 <br /> Attention Fran Thie Lab Number 98071-189-23 Reported 08J1 9Y98 <br /> QC Batch Number GCO81098BTEX69A <br /> Instrument ID GCHP9 <br /> Total Purgeable Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 8100 <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 0 50 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern >C 10 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 97 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOI A YTICAL - ELAP #1271 <br /> yPnnr <br /> ect ager Page 15 <br />