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Sequoia 680 Chesapeake Drive Redwood City C.4 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 51,ker Avenue Suite 8 Sacramento CA 95834 `916)921-9600 FAX(916 )921-0100 <br /> f455 McDowell Blvd North Ste D Petaluma,CA 94954 707 792-1865 FAX 707)792-0342 <br /> - ATC Associates, Inc Client Prat ID Continental Grairi Sampled 08/12/98 <br /> 1260 Graphics Drive Sample Descript CG-,MW2-20 5 Received 08/13/98 <br /> Modesto, CA 95351-1502 Matrix SOLID <br /> Analysis Method EPA 6260 Analyzed 08,121/98 <br /> Attention Drew Van Allen Lab Number 9808898-03 _ -Reported OBJ28/98 „ <br /> InCBaich Number MS082098MTBEEXA <br /> strument ID H6 <br /> Oxygenate Compounds (EPA 5260) <br /> tAnalyte Detection Limit Sample Results <br /> ug/kg ug/kg <br /> t-Butanol 5000 N D <br /> Methyl t-Butyl Ether (MTBE) 100 N D <br /> Di-Isopropyl Ether(DiPE) 100 N D <br /> Ethyl t-Butyl Ether(ETBE) 100 N D <br /> 't-Amyl Methyl Ether (TAME) 100 N D <br /> 1,2,Dichloroethane 50 N D <br /> Ethylene Dlbromide (EDB) 50 N D <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 70 121 86 <br /> Toluene-d8 81 117 99 <br /> r <br /> r <br /> i <br /> 1 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - FLAP 01210 <br /> �r ject anager Page 9 <br />