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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N VAget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> Analytical 8t9 Striker Avcnue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921.0100 <br /> �.:."• '^--_—z.=s_............s.....s..�............u?....—:y............u..»a i...�!.?sx�.!.....s..r...»..."»!i..::».....»"mss».».. �s:as.0 ---».—........sat •"»�.__amu=�»s�— <br /> F 77 <br /> I Envlros_ µ Client Prol ID Shell 6131 Pacific, Stockton Sampled 09%16/97 » <br /> 'w 270 Perkins Ave Sample Descript MW-7-55' Received 09/19/97 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 09/25/97 . <br /> Analysis Method 8015Mod/8020 Analyzed 09/29/97 <br /> vK Attention J-Gaarder __ _ Lab Number_9709009-15--__ _ _ _w y » Reported X10103/97_-M <br /> QC Batch^Number»GC0925976TEXEXBInstrument ID ID GCHP22 <br /> _ Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas ..... .... ......... 10 ... .. ... .... .. . 33 <br /> Benzene ..... ....... . .. 0.0050 ... .. .. ...-- -.. 0.37 <br /> Toluene ..... .. ....... 00050 ... .. ... ..... 0.52 <br /> Ethyl Benzene ..... .. .......... 0.0050 .... .. .... ..... 0 037 <br /> Xylenes (Total) . ... .. ... ...... 0.0050 .... ......... 025 <br /> Chromatogram Pattern: ......... ... ...... .... .. .. .. C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 121 <br /> 4-Bromofluorobenzene 60 140 97 <br /> w <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> M4 dr,wory • <br /> Project Manager Page 45 <br /> I <br />