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V {J <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-%00 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <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 ID Chevron 9-4275 Sampled 12/17/98 <br /> 1680 Rogers Avenue Sample Descrlpt Muni #10 Received 12/18/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 12/30/98 <br /> Attention Christine Lillie Lab Number 9812C63-10 Reported 01J06J99 <br /> QC Batch Number GC123098802004A <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 <br /> 0 <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene _ 050 N D- <br /> Xylenes (Total) 050 <br /> ND <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifl u orot of uene 70 130 95 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> gry , <br /> Protect Manager <br /> Page 10 <br />