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Table 3 <br /> Oxygenates By EPA Method 8260A <br /> Former ARCO Service Station#595 <br /> 6100 North Highway 99 Stockton CA <br /> Well Date TBA MtBE DIPE EtBE TAME 1,2-DCA EDB <br /> Number Sampled (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> MW-1 6/16/2000 <200 <2 0 <20 <2 0 <2 0 <2 0 <2 0 <br /> 9/19/2000 <200 242 <2 0 <2 0 <2 0 <2 0 <2 0 <br /> 11/2/2000 <50 25 <20 <2 0 <2 0 <2 0 <2 0 <br /> 3/5/2001" <1,000 128 <10 0 <100 <100 <100 <100 <br /> 5/8/2001 <200 459 <2 00 <2 00 <2 00 <2 00 <2 00 <br /> MW-2 6/16/2000 <200 116 <2 0 <2 0 <2 0 388 <2 0 <br /> 9/19/2000 <200 936 <2 0 <2 0 <2 0 424 <20 <br /> 11/2/2000 62 71 <2 0 <2 0 <2 0 <2 0 <2 0 <br /> 3/5/2001 <200 601 <2 00 <2 00 <2 00 283 <2 00 <br /> 5/8/2001 <200 998 <2 00 <2 00 <2 00 349 <2 00 <br /> MW-3 6/16/2000 <200 869 <2 0 <2 0 <2 0 702 <2 0 <br /> 9/19/2000 <200 <2 0 <2 0 <2 0 <2 0 141 <2 0 <br /> 11/212000 <50 11 <2 0 <2 0 <2 0 38 <2 0 <br /> 3/5/2001 <200 735 <2 00 <2 00 <2 00 839 <2 00 <br /> 5/8/2001 <200 393 <2 00 <2 00 <2 00 139 <2 00 <br /> MW-4 6/16/2000 807 3,200 <2 0 <2 0 448 844 <2 0 <br /> 9/19/2000 637 2,510 <2 0 <2 0 308 229 <2 0 <br /> 11/2/2000 570 2,200 <2 0 <2 0 <2 0 280 <2 0 <br /> 3/5/2001 301 1,760 225 <2 00 207 240 <2 00 <br /> 5/8/2001 <4,000 2,140 <40 0 <40 0 <40 0 203 <40 0 <br /> WSW 11/2/2000 <50 <2 0 <2 0 <2 0 <2 0 <2 0 <2 0 <br /> 3/5/2001 <200 <2 00 <2 00 <2 00 <2 00 <2 00 <2 00 <br /> 5/8/2001 <200 <2 00 <2 00 <2 00 <2 00 <2 00 <2 00 <br /> Notes <br /> MtBE=Methyl tert-butyl ether <br /> TBA=Tert-butyl alcohol <br /> DIPE=Di-isopropyl ether <br /> EtBE=Ethyl tert-butyl ether <br /> TAME=Tert-amyl methyl ether <br /> 1,2-DCA=1,2-Dichloroethane <br /> EDB=Ethylene dibromide <br /> ppb=parts per billion <br /> <=below laboratory detection limit,or nondetect <br /> =ethanol was tested for and was reported as nondetect(<15 ppm) <br />• <br />