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" Sequoia N30 Che5apeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)986-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921 9600 FAX(916)9Z1-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792 1865 FAX(707)792 0342 <br /> Gettler Ryan/Geostrategles Client Proj ID 6981, 140124 02/4707 Pacific Sampled 10/22/98 <br /> 3164 Gold Camp Drive #240 Sample Descript Inf Received 10/23/98 <br /> Rancho Cordova, CA 95670 Matrix AIR <br /> Analysis Method 8015Mod/8020 Analyzed 10/23/98 <br /> Attention Steve C Lab Number 981 OG49-01 Reported 10128198 <br /> QC Batch Number GC1023986TEX30A <br /> Instrument ID GCHP30 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 100 390 <br /> Benzene 1 0 N D <br /> Toluene 1 0 N D <br /> Ethyl Benzene 1 0 N D <br /> Xylenes (Total) 1 0 5 0 <br /> Chromatogram Pattern <br /> Unidentified HC >C9 <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 94 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> T anicher <br /> Project Manager Page 1 <br />