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PAGE 10 <br /> • ATC ASSOCIATES <br /> SAMPLE ID CG-5B7-25 DATE SAMPLED 10/07/97 <br /> AEN LAB NO 9710114-09 DATE RECEIVED 10/09/97 <br /> AEN WORK ORDER 9710114 REPORT DATE 10/28/97 <br /> CLIENT PROJ ID 62500 <br /> METHOD/ REPORTING DATE <br /> ANALYTE CAS# RESULT LIMIT UNITS ANALYZED <br /> BTEX & Gasoline HCs EPA 8020 <br /> Benzene 71-43-2 ND 5 ug/kg 10/16/97 <br /> Toluene 108-88-3 ND 5 ug/kg 10/16/97 <br /> Ethylbenzene 100-41-4 12 * 5 ug/kg 10/16/97 <br /> Xylenes , Total 1330-20-7 27 * 5 ug/kg 10/16/97 <br /> Purgeable HCs as Gasoline 5030/GCFID 2 3 * 0 2 mg/kg 10/16/97 <br /> Lead EPA 7420 4 * 3 mg/kg 10/14/97 <br /> #Digestion for ICP/AA EPA 3050 - Prep Date 10/13/97 <br /> Gasoline Oxygenates EPA 8260 <br /> t-Butanol (TBA) 75-65-0 ND 100 ug/kg 10/18/97 <br /> Methy-t-butyl ether (MTBE) 1634-04-4 ND 5 ug/kg 10/18/97 <br /> Di -isopropyl ether (DIPS) 108-20-3 ND 5 ug/kg 10/18/97 <br /> Ethyl -t-butyl ether (ETBE) 637-92-3 ND 5 ug/kg 10/18/97 <br /> t-Amylmethyl ether (TAME) 994-05-8 ND 5 ug/kg 10/18/97 <br /> ND = Not detected at or above the reporting limit <br /> * = Value at or above reporting limit <br />