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PAGE 3 <br /> ATC ASSOCIATES <br /> SAMPLE ID: NS-SB1-25.0 DATE SAMPLED: 11/14/97 <br /> AEN LAB NO: 9711230-02 DATE RECEIVED: 11/17/97 <br /> AEN WORK ORDER: 9711230 REPORT DATE: 12/11/97 <br /> CLIENT PROJ. ID: 14981.0001 <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 11/27/97 <br /> Toluene 108-88-3 ND 5 ug/kg 11/27/97 <br /> Ethylbenzene 100-41-4 ND 5 ug/kg 11/27/97 <br /> Xylenes, Total 1330-20-7 8 * 5 ug/kg 11/27/97 <br /> Purgeable HCs as Gasoline 5030/GCFID 0.8 * 0.2 mg/kg 11/27/97 <br /> Lead EPA 7420 7 * 3 mg/kg 11/25/97 <br /> #Digestion for. ICP/AA EPA 3050 - Prep Date 11/24/97 <br /> Gasoline Oxygenates EPA 8260 <br /> t-Butanol (TBA) 75-65-0 ND 500 ug/kg 11/24/97 <br /> Methy-t-butyl ether (MTBE) 1634-04-4 ND 30 ug/kg 11/24/97 <br /> Di -isopropyl ether (DIPE) 108-20-3 ND 30 ug/kg 11/24/97 <br /> Ethyl -t-butyl ether (ETBE) 637-92-3 ND 30 ug/kg 11/24/97 <br /> t-Amylmethyl ether (TAME) 994-05-8 ND 30 ug/kg 11/24/97 <br /> Reporting limits for oxygenates elevated due to high <br /> levels of non-target compounds. Sample run at dilu- <br /> tion. <br /> ND = Not detected at or above the reporting limit <br /> r * = Value at or above reporting limit <br /> L <br /> L� <br />