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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(9 16)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste 0 Petaluma,CA 94954 (707)79Z-1865 FAX(707)792-0342 <br /> Gettler RyanIGeostrategies Client Prof 16— <br /> - 280045 85, 437 E Miners» - Received led 05/ / <br /> 98 <br /> 6747 Sierra Court Suite J Sample Descnpt U-4 05/26/98 - <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 05/31/98 <br />' Attention Deanna Harding , Lab Number 9805G16-05 Reported 07128198 _i <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 - - -• 5o 96 <br /> Methyl t-Butyl Ether 050 - 3 7 <br /> ND <br /> Benzene 050 __ _ 1 3 <br /> Toluene 050 N D <br /> Ethyl Benzene 0 50 0 68 <br /> Xylenes (Total) -- <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Tnfluorotoluene 70 130 110 <br /> 0 <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41849 <br /> Tranicher <br /> Pr r Manager Page 5 <br />