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Arrrerrcarr Eiivir'orrrrrewal Network <br /> PACE 7 <br /> . WESTERN GEO-ENGINEERS <br /> SAMPLE ID: MW-13 DATE SAMPLED: 12/17/97 <br /> AEN LAB NO: 9712299-06 DATE RECEIVED: 12/18/97 <br /> AEN WORK ORDER: 9712299 REPORT DATE: 01/06/98 <br /> CLIENT PROJ. ID: R603 <br /> METHOD/ REPORTING DATE <br /> ANALYTE CAS# RESULT LIMIT UNITS ANALYZED <br /> BTEX & Gasoline HCs EPA 8020 <br /> Benzene 71-43-2 14 * 3 ug/L 12/30/97 <br /> Toluene 108-88-3 250 * 3 ug/L 12/30/97 <br /> Ethylbenzene 100-41-4 88 * 3 ug/L 12/30/97 <br /> Xylenes , Total 1330-20-7 2.100 * 10 ug/L 12/30/97 <br /> Purgeable HCs as Gasoline 5030/GCFID 5.7 * 0.3 mg/L 12/30/97 <br /> Methyl t-Butyl Ether 1634-04-4 30 * 30 ug/L 12/30/97 <br /> Gasoline Oxygenates EPA 8260 <br /> t-Butanol (TBA) 75-65-0 NO 100 ug/L 12/30/97 <br /> Methy-t-butyl ether (MTBE) 1634-04-4 ND 5 ug/L 12/30/97 <br /> . Di -isopropyl ether (DIPE) 108-20-3 ND 5 ug/L 12/30/97 <br /> Ethyl -t-butyl ether (ETBE) 637-92-3 ND 5 ug/L 12/30/97 <br /> t-Amylmethyl ether (TAME) 994-05-8 NO 5 ug/L 12/30/97 <br /> NO = Not detected at or above the reporting limit <br /> * = Value at or above reporting limit <br />