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• Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wtget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> ! Analytical 819 Stnker Avenue,Suite 8 Sacramento CA 95834 (916) 911 9600 FAX (936)921 0100 <br /> Enviros Client Prol ID Shell 1267 Country Club, Stck Sampled 04/04/97 <br /> 270 Perkins Ave Sample Descript SB-1-Llq Received 04/08/97 <br /> Sonoma, CA 95476 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 04/15/97 <br /> Attention Joe Neely Lab Number 9704512-09 Reported 04122197 <br /> fC Batch Number GC041597BTEX01A <br /> nstrument ID GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 1000 15000 <br /> Methyl t-Butyl Ether - - 50 110 <br /> Benzene 10 220 <br /> Toluene 10 24 <br /> Ethyl Benzene 10 750 <br /> Xylenes (Total) - 10 440 <br /> Chromatogram Pattern C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 148 Q <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> /�/' - <br /> We,4&" <br /> Project Manager Page 21 <br />