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® \ Sequoia 680 Clicsapcakc Drive Redwood City CA 94063 (415) 364 9600 1A(415) 364 9233 <br /> 404 N Wigct Lane Walnut Creek, CA 94598 (510) 988 9600 lAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Gettler Ryan/Geostrategies Client Prod ID Unocal 6981, Pacific Ave Sampled 06/24/97= II <br /> 3164 Gold Camp Drive #240 Sample Descript Eff Received 06/25/97 <br /> Rancho Cordova, CA 95670 Matrix AIR <br /> Analysis Method 8015Mod/8020 Analyzed 06/26/97 <br /> Attention Greg Gurss Lab Number 9706C85-01 Reported 07J01 J97 <br /> s s - <br /> s s s s s <br /> aC Batch Number GCD62697BTEX02A <br /> istrument ID GCHP02 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L. ug/L <br /> TPPH as Gas 10 12 <br /> Benzene 010 N D <br /> Toluene 010 N D <br /> Ethyl Benzene 010 N D <br /> Xylenes (Total) .. 010 035 <br /> Chromatogram Pattern .. Gas <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 119 <br /> nalytes reported as N D were not present above the stated ILMA of detection <br />;EQUOIA ANALYTICAL - EI-AP #1210 <br /> 41 gory Page 1 <br />'rol Manager <br />