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/ \ Sequoia 680 Chesapeake Drive Redwood City,CA 940L (415) 364 9600 FAX (415) 364 9233 <br /> --� 404 N Wiget Lane Walnut Crede CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Enviros Client Prol ID-� Shell 2575 Country Club, STCK -Sampled 01/02/97 <br />- 270 Perkins Ave Sample Descript SS-A Received 01/03/97 " <br /> Sonoma, CA 95476 Matrix SOLID Extracted 01/06/97 - <br /> Analysis Method 8015Mod/8020 Analyzed 01/06/97 _ <br /> Attention Joe Neely _ _ _ Lab Number 9701065-01 _ Reported 0-11J15197 <br /> QC Batch Number GC010697BTEXEXA <br /> Instrument ID GCHP22 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/K9 m9/K9 <br /> TPPH as Gas 10 N D <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 N D <br /> Xylenes (Total) 00050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 85 <br />• <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - FLAP #1210 <br /> 490! � <br />-V(Gregory <br /> ect Manager Page 2 <br /> g� <br />