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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 (510) 988-9600 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX (916)921 0100 <br /> �„�� <br /> Gettier Ryan/Geostrategies r Client Prol ID µ Former Unocal 2859, 280054 85 ~ Sampled <br /> led 03/06/98 <br /> 98 <br /> 6747 Sierra Court Suite J Sample Descript MW-1 <br /> Dublin, CA 94568 Matrix UQUID <br /> Analysis Method 8015Mod/8020 Analyzed 03/10/98 <br /> Attention Deanna Harding =_ Lab Number 9803390-02 Reported 03J18198 <br /> OC Batch Number GC031098STEX17A -- <br /> Instrument ID GCHP17 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L g/l <br /> TPPH as Gas 50 ND <br /> Methyl t-Butyl Ether 2 5 N D <br /> ND <br /> Benzene 0 50 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 97 <br /> 0 <br /> Analytes reported as N D were not present above rile stated iimit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> * O Page 6 <br /> rojecta an ger <br />