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• Date Amount <br /> 27 January 2000 1 gal <br /> 16 February 2000 1 gal <br /> 17 March 2000 0 5 gal <br />• 7 April 2000 0 5 cu <br /> r p <br /> r 20 April 2000 1 cup <br /> r Total 2.6 gal. <br /> 4.0 DI$cusSION <br /> 4.1 Waste Oil USTs <br /> r <br /> r Analysis of MW-2 sampled on 26 July 2000 shows continuing contamination from motor oil, <br /> r gasoline, BTEX, MTBE and DIPE No diesel contamination was present in the 26 July 2000 <br /> sampling of MW-2 The former waste oil USTs continue to be an apparent source of <br /> groundwater contamination from a number of petroleum hydrocarbons, although the levels of <br /> r <br /> r contamination are trending downward <br /> 4.2 Diesel USTs <br /> MW-1 (site of the former diesel USTs) continues to show contamination from diesel, ethyl <br /> r benzene and total xylenes Contamination levels do not show a consistent trend up or down <br /> r <br /> r MW-2 is now free of diesel contamination, and MW-3 shows no contamination from any <br /> r targeted hydrocarbons At this time, it appears that contamination from diesel is generally <br /> confined to the location of the former diesel USTs, and does not pose a significant threat to <br /> r <br /> r groundwater downstream <br /> r <br /> r 4.3 Floating Oil <br /> r A September 1998 sample of groundwater monitoring well MW-2 found black, floating oil that <br /> r <br />' appeared to be typical of used motor oil FIoating oil has been removed from MW-2 using <br />' disposable bailers periodically throughout the first and second quarters Approximately 3 <br /> t gallons of floating oil has been removed <br /> 1� <br /> Envvoneermg,Inc Project No 00-008 07 Page 7 <br />