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' 680 Chesapeake Drive Redwood City CA 94063 <br /> Sequoia (650)364-9600 FAX(650)364-9233 <br /> 1 404 N Wiget Lane Walnut Creek CA 9459$ (925)988-9600 FAX(925)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)792-0342 <br /> ATC Associates Inc Client Prol ID Ripon USD 13099 0001 Sampled 01/29/99 <br /> 1117 Lone Palm Avenue Sample Descrlpt MW-3 Received 01/29/99 <br /> Modesto, CA 95351-1502 Matrix LIQUID Extracted 02/02/99 <br /> Analysis Method EPA 8015 Mod Analyzed 02/02/99 <br /> Attention Jeanne Homsey Lab Number 9901 E93-02 Reported 02/09j99 <br /> iC Batch Number GCO202990HBPEXB <br /> nstrument ID GCHP46 <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> JAnalyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TEPH as Diesel 50 N D <br /> Chromatogram Pattern <br /> urrogates Control Limits % % Recovery <br /> 91-Pentacosane (C25) 50 150 84 <br /> 1 <br /> 1 � <br /> i <br /> 1 i <br /> 1 a)ytes reported as N D were not present above the stated limit of detection <br /> EQUOIA ANALYTICAL - <br /> C FLAP 01210 <br /> W1 � <br /> ger <br /> Page 5 <br /> 1 � <br />