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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 /> ' frlll� Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (9t6)921 0100 <br /> 1 <br /> Pacfic-Environmental Group Client Prod ID 311-174 1A/BP #5447,Stockton <br /> " 2025 Gateway Place, Suite 440 Sample Descnt PD-2 Sampled 02/13/98 - <br /> San Jose, CA 95110 Matrix SOLID' Received 02/17/98 <br /> AttentioAnalysis Method 8015Mod/8020 Extracted 02/24/98 <br /> ' n Joe Muzzlo Lab Number 9802886-02 Analyzed 02/25/98 <br /> OC Batch Number-GCO2249813TEXEX13 Reported 03j30j98 <br /> Instrument ID GCHP01 _ <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) With BTEX and MTBE <br /> Analyte Detection Limit <br /> Sample Results <br /> ' <br /> TPPH as Gas mg/Kg mg/Kg <br /> Methyl t-Butyl Ether i0 100 <br /> Benzene 025 N D <br /> ' Toluene 0 050 N D <br /> Ethyl Benzene 0 050 N D <br /> Xylenes (Total) 0 050 0 097 <br /> Chromatogram Pattern 0050 090 <br /> ' Weathered Gas <br /> C6-C12 <br /> Surrogates o Recovery <br /> Trrfluorotoluene Control Limits % <br /> 70 <br /> 4-Bromofluorobenzene 130 /a S5 <br /> 60 140 90 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> 21 <br /> od Granicher <br /> f! Project Manager <br /> Page 3 <br /> f <br />