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F <br /> Sequoia 580 Chesapeake Drive Redwood City CA94063 (650)364-9600 FAX(650)3,64-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510)988-9600 FAX(510)988-9673 <br /> Analytical <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916}921-9600 FAX(915)9Z1-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707 792-1865 FAX(707)792 0342 <br /> t Ground Zero Analysis, Inc Client Prol ID 96-163 Sampled 05/18/98 <br /> 1714 Main St Sample Descnpt KR EfFlu Received 05/19/98 <br /> r Escalon, CA 95320 Matrix AIR <br /> Analysis Method 8015Mod/8020 Analyzed 05/21/98 <br /> a Attention Jeanne Buelethos Lab Number 9805891-02 Reported 05 f 22 f 98 <br /> OC Batch Number GC052198BTEX02A <br />� Instrument ID GGHP02 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> 1 <br /> I Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 10 N D <br /> Benzene 010 018 <br /> Toluene 010 N D <br /> Ethyl Benzene 010 N D <br /> Xylenes (Total) 010 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> TnOuorotoluene 70 130 83 <br /> t <br /> i <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> I <br /> rolect Manager page 2 <br />