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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650) 364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510)988-9600 FAX(510)988-9673 <br /> 819 Straker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(9i4)921-0100 <br /> low Analytical <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services Client Prod"ID Shell 2575 Country Club Sampled 04/23/98 <br /> _ 1680 Rogers Avenue Sample Descrlpt MW-6 Received 04/24/98 <br /> " San Jose, CA 95112 Matrix LIQUID <br /> " Analysis Method 8015Mod/8020 Analyzed 04/30/98 <br /> Attention Fran Thie Lab Number_ 98041-107-05 _ Reported 05J12198 <br /> OC Batch Number GC043098BTEX09A <br /> Instrument ID GCHP9 <br /> Total Purgeable Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N D <br /> Methyl t-Butyl Ether .. 25 38 <br /> Benzene 0 50 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 99 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQ A YTICAL - ELAP #1271 <br /> Penner <br /> rolect Manager Page 15 <br />