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Sequoia 680 Chesapeake a Redwood CiMeek, CA 94063 (650) 364 9600 i FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94596 (510) 988-9600 _ FAX(510)988-9673 <br /> D_ Analytical 819 Striker Avenue,Suite B Sacramento,CA 95834 (916) 921 9600' FAX(916)921-0100 <br /> `Envtros-- ~" - — - --_ ~ Client Pro ID -Shell 6131�Pacifc, Stockton wSampled 09/16/97 <br /> 270 Perkins Ave Sample Descnpt MW-6-55' Received 09/19/97 I <br /> Sonoma, CA 95476 Matrix SOLID Extracted 09/25/97 <br /> _M TT� Analysts Method 8015Mod/8020 Analyzed 09/26/97 <br /> !;Attention J Gaarder =_ -_ Lab N 9709C09CO9 <br /> Number -11 _ _ sport 1943/ <br /> QC Batch Number GCO92597BTEXEXB - <br /> instrument ID GCHP18 <br /> ---- Total Purgeable_Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas ..... .............. 10 .............. ..... 92 <br /> Benzene .... . ..... ... ... 0 050 .... .. . .......... 2 9 <br /> Toluene ..... .... ..... . 0.050 .......... . .. . 7.6 <br /> Ethyl Benzene ... . ............. 0 050 ...... ....... ..... -041 <br /> Xylenes (Total) .... .... .... 0.050 ... ............... 11 <br /> Chromatogram Pattern. ...... .... ... .... . ...... . ... .... C6-C12 <br /> Surrogates Control Limits' % Recovery <br /> Trifluorotoluene 70 130 133 0 <br /> 4-Bromofluorobenzene 60 140 150 O <br /> Fill <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANA YTICAL - ELAP #1210 <br /> - /-,00. <br /> • <br /> Mtk regory <br /> Project Manager page 33 <br />