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1 <br /> a) Sequoia 680 Cliesapcake Drive Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 N WiBct Lane Walnut Crcck, CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suitc 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> "Gettler Ryan/Geostrategies Client Prol 1D " Unocal 0187/Stockton Sampled 07/31/95 <br /> 3035 Prospect Park Drive #110 Sample Descrlpt U-4 Received 08/01/95 <br /> Rancho Cordova, CA 95670 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/04/95 <br />-Attention Greg Gurss Lab Number 9508004-01 Reported 08/08195 <br /> QC Batch Number GCO80495STEX02A <br /> Instrument 1D GCHP02 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 300 <br /> Benzene 050 _ 1 6 <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Weathered Gas . . . C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 106 <br /> • <br /> Malytes reported as N D were not present above the stated limit of detection <br /> SEQU¢A LYTICAL - ELAP #1210 <br /> Aske Gregory <br />:'rolect Manager Pae t <br /> g <br />