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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 /> a— ) Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FW(916)92Y"-01oo <br /> IQF 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> » Blaine Tech Services » Client Proj ID » Shell 620 W Charter Way » Sampled 05/21-/98 ' <br /> 1680 Rogers Avenue Sample Descrlpt DUP Received 05/22/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> - Analysis Method 8015Mod/8020 Analyzed 06/04/98 <br /> Attention Fran Thle » _ » Lab Number 9805F39-12 » » - _ » Reported 06J1 1198 <br /> QC Batch Number GC060498802002A - <br /> Instrument 1D HP-2 <br /> Total Purgeable Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas .. .. 200 .. 1700 <br /> Methyl t-Butyl Ether 10 23 <br /> Benzene •- - - - 2 0 - 56 <br /> Toluene - 2 0 46 <br /> Ethyl Benzene 2 0 .. 22 <br /> Xylenes (Total) 2 0 ... 30 <br /> Chromatogram Pattern .. C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 119 <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA A L ICAL - ELAP #1271 <br /> Peggy Penn <br /> Project Manager Page <br />