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. Sequoia 404 Chesapeake Drive Redwood Gk A 4598 (925) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(9Z5)48$-9673 <br /> !D <br /> Analytical 819 Striker Avenue Suite$ Sacramento CA 95$34 (916)921-9600 FAX(916)42!-0100 <br /> , — <br /> 1455 McDowell Blvd North Ste D Petaluma.,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> i <br /> Blaine Tech Services Client Prol I Shell 7910 Lower Sacramento Sampled 07/28/98 <br /> 1680 Rogers Avenue Sample Descript MW-3 Received 07/30/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/06/98 <br /> Attention Fran Thle Lab Number_ 98071-180-03 Reported 08J19198 <br /> QC Batch Number GC080698BTEX09A <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 49 <br /> Benzene 0 50 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 0 50 1 2 <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trlfluorotoluene 70 130 98 <br /> 0 <br /> Analytes Ire s N D were not present above the stated limit of detection <br /> SEQUA ALYTICAL - ELAP #1271 <br /> P r <br /> Pro ager Page 3 <br />