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r� <br /> Sequoia 11 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9Z33 <br /> 404 N Wiget lane Walnut Creek.CA 94598 (9Z5)9a8-9600 FAX(9Z5)988-9673 <br /> Iwo Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)9Z1-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 0 <br /> Blaine Tech Services Client Prol ID Chevron 9-8632/981 1 24-J1 Sampled 11/24/98 <br /> 1680 Rogers Avenue Sample Descrlpt MW-4 Received 11/25/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 12/05/98 <br /> Attention Christine Lillie Lab Number 98111-152-04 Reported 12f09/98 <br /> QC Batch Number GC120598802004A <br /> Instrument ID HP4 <br /> Total Purgeable Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 250 720 <br /> Methyl t-Butyl Ether 12 N D <br /> Benzene 25 <br /> Toluene 210 <br /> 25 99 <br /> Ethyl Benzene 25 23 <br /> Xylenes (Total) 25 68 <br /> Chromatogram Pattern GAS <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 103 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> �J <br /> WAJ <br /> gory <br /> Project Manager Page g <br />