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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (92S)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921 0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792 0342 <br /> ATC Associates, Inc Client Proj ID Farmer Property, #62596 0001 Sampled 06/26/98 <br /> 1260 Graphics Drive Sample Descript MW-2 Received 06/26/98 <br /> Modesto, CA 95351-1502 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 07/06/98 <br /> „I Attention Drew Van Allen Lab Number 9806116-02 Reported 07J10198 <br /> CC Batch Number GC070698BTEX2IA - <br /> Instrument 1D GCHP21 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L. ug/L <br /> TPPH as Gas 50 490 <br /> Benzene 0 50 58 <br /> Toluene 0 50 0 71 <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 0 50 24 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 104 <br /> Analytes reported as IN D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> i <br />� S <br /> Project Manager Page 4 <br />