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680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364-9233 <br /> Sequoia <br /> • ' 404 N Wiget Lane Walnut Creek CA 94598 (510)988-9600 FAX(510)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 />_ Blaine Tech Services Client Proj ID Shell 6131 Pacific Ave Sampled 05/20/98 <br /> 1680 Rogers Avenue Sample Descript MW-3 Received 05/22/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 06/05/98 <br /> Attention Fran The Lab Number- 9805F44-03 _ Reported 06111198 <br /> QC Batch Number GC060598802004A <br /> Instrument ID HP-4 <br /> Total Purgeable Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L. <br /> TPPH as Gas ... 2500 4100 <br /> Methyl t-Butyl Ether 120 240 <br /> Benzene 25 710 <br /> Toluene 25 400 <br /> Ethyl Benzene 25 130 <br /> Xylenes (Total) .. 25 440 <br /> Chromatogram Pattern C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 110 <br /> Analytes reported as N b were not present above the stated limit of detection <br /> SEQTner <br /> LYTICAL - ELAP <br /> P #1271 <br /> Project Manager Page 6 <br />