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Sequoia 680 Chesapeake Dfl a Redwood City CA 94063 (650)364-%00 FAX(650)364-9233 <br /> 404 N Wiget Cane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)911-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ATC Associates, Inc Client Prol ID Stockton Fire Station #2 Sampled 06/03/98 <br /> 1260 Graphics Drive Sample Descript MW-4 Received 06/04/98 <br /> Modesto, CA 9535 1-1 502 Matrix LIQUID Extracted 06/14/98 <br /> Analysis Method EPA 8015 Mod Analyzed 06/15/98 <br /> Attention Jeanne Hornsey Lab Number 9806259-03 Reported 06116198 <br /> OC Batch Number GCO614980HBPF-XY - <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 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> n-Pentacosane (C25) 50 150 76 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Project Manager <br /> Page 5 <br />