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p I <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(92S)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707) 792-1865 FAX(707)79Z-0342 <br /> ATC Associates, Inc - Client Proj ID KOK Realty 62581 0001 Sampled 09/11/98 <br /> 1260 Graphics Drive Sample Descrlpt MW-7 Received 09/11/98 <br /> = Modesto, CA 95351-1502 Matrix LIQUID Extracted 09/15/98 <br /> i Analysis Method EPA 8015 Mod Analyzed 09/18/98 <br /> =Attention Jeanne Homsey - __ ___ Lab Number 9809733-04 _ _ Reported 09J25198 _ <br /> _- -- - - - - - - - ---- -- - <br /> QC Batch Number GC0915980HBPEXZ <br /> Instrument ID GCHP4A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TEPH as Diesel 5o ... 51 <br /> Chromatogram Pattern <br /> Unidentified HC .. .. C9-C24 <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 87 <br /> 0 <br /> Analytes reported as N D wer no present above the stated limit of detection <br /> SEQUOIA IC L - ELAP #1210 <br /> Project Manager Page 9 <br />