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Aiwa is ail Ef17 ri «w»tc wol Nerwoj k <br /> PAGE 3 <br /> WESTERN GEO-ENGINEERING <br /> SAMPLE ID MW-2 DATE SAMPLED- 03/10/98 <br /> AEN LAB NO. 9803132-02 DATE RECEIVED 03/12/98 <br /> AEN WORK ORDER 9803132 REPORT DATE 03/31/98 <br /> CLIENT PROD ID ARC WELDING <br /> METHOD/ REPORTING DATE <br /> ANALYTE CAS# RESULT LIMIT UNITS ANALYZED <br /> BTEX & Gasoline HCs EPA 8020 <br /> Benzene 71-43-2 1,300 * 5 ug/L 03/23/98 <br /> Toluene 108-88-3 110 * 5 ug/L 03/23/98 <br /> Ethylbenzene 100-41-4 220 * 5 ug/L 03/23/98 <br /> Xylenes Total 1330-20-7 640 * 20 ug/L 03/23/98 <br /> Purgeable IACs as Gasoline 5030/GCFID 4 4 * 0 5 mg/L 03/23/98 <br /> Methyl t-Butyl Ether 1634-04-4 60 * 50 ug/L 03/23/98 <br /> Gasoline Oxygenates EPA 8260 <br /> t-Butanol (TBA) 75-65-0 ND 500 ug/L 03/24/98 <br /> Methy-t-butyl ether (MTBE) 1634-04-4 ND 30 ug/L 03/24/98 <br /> Di -isopropyl ether (DIPS) 108-20-3 ND 30 ug/L 03/24/98 <br /> Ethyl -t-butyl ether (ETBE) 637-92-3 ND 30 ug/L 03/24/98 <br /> t Amylmethyl ether (TAME) 994-05-8 ND 30 ug/L 03/24/98 <br /> RLs for gas/BTEX elevated due to high levels of target <br /> compounds RLs for oxygenates elevated due to high lev <br /> els of non-target compounds Samples run at dilution <br /> ND = Not detected at or above the reporting limit <br /> * = Value at or above reporting limit <br />