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Sequoia 680 Chesapeake Drive Redwood Cory CA 94063 (65G) 364-9600 FAX(650) 364-9233 <br /> a— ) 404 N Wiset Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792.0342 <br /> Gettler Ryan/Geostrategies Client Prot ID 6981/140124, 4707 Pacific Ave Sampled 11/20/98 <br /> 3164 Gold Camp Drive #240 Sample Descript Inf Received 11/20/98 <br /> Rancho Cordova, CA 95670 Matrix AIR <br /> Analysis Method 8015Mod/8020 Analyzed 11/21/98 <br /> Attention Steve Carter Lab Number 9811E17-01 Reported 12109198 <br /> CSC Batch Number GC112198B rEX02A <br /> Instrument 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 10 200 <br /> Benzene 010 N D <br /> Toluene 010 026 <br /> Ethyl Benzene 0 10 022 <br /> Xylenes (Total) 0 10 2 6 <br /> Chromatogram Pattern <br /> Unidentified HC C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 1450 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL. - ELAP #1210 <br /> AT r her <br /> Project Manager Page t <br />