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4tedwoOd Cary CA 94053 (650) 364 9600 FAX(650) 364 9233 <br /> 925 988 9600 FA?C(9Z5)988 9673 <br /> Se 680 Chesapeake Onve Walnut Creek CA 94598 ( ) FAX(916)921 0100 <br /> YI^ uoia 404 N Wsget lane 9t5 921 9600 FAX(707)792 0342 <br /> Sig Strdkes Avenue Surte B Sacramento CP.95$34 (707) 79Z 1865 <br /> Analytical 1455 N1tDowell Blvd North Ste D Petaluma CA 94454 ( ) <br /> Sampled 08/'10/98 <br /> TechClient Pro) 1D Chevron 9-8264 f 984810-T1 Received ()a/'13/98 <br /> Blaine Roger Services Sample Descrlpt MW-3 Extracted 08/21/98 <br /> San Rogers Avenue Matrix LIQUID Analyzed 08/25/98 <br /> San ,lose, CA 95112 Analysis Method EPA 8015 Mod Reported 08131198 <br /> Attention Fran Thle <br /> Lab Number 9808910-03 <br />)C Batch Number GC0821980HBPEXA <br /> nstrument ID GCHP4A <br /> Total Extractable Petroleum Hydrocarbons (TEPH <br /> Sample Results <br /> Detection Limit ug/L <br /> Analyte ug/L <br /> ND <br /> 50 <br /> TEPH as Diesel <br /> Chromatogram Pattern % Recovery <br /> Control Limits % 150 90 <br /> Surrogates 50 <br /> n-Pentacosane (C25) <br /> 0 <br /> Results quantitated against a diesel standard <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Page 9 <br /> or`I <br /> ct anagen <br />