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TABLE 7 <br /> ANALYTICAL RESULTS OF HISTORICAL GROUND WATER SAMPLES - EPA METHOD 8260B <br /> West Clay Properties <br /> r <br /> ` 639 West Clay Street, Stockton, California <br /> I G <br /> J <br /> Well ID Sample PIPE- ETBE MTBE TAME TBA Methanol Ethanol EDB 1,2-DCA <br /> Date - - - <br /> _ EW-1 08/11/00 <100 <100 110 <100 <500 NA NA NA NA <br /> = 12/18/00 <50 <50 200 <50 <250 <10,000 <2,500 <50 <50 <br /> 03/13/01 '<5 <5 300 <5 <25 <1,000 <250 6.5 11 t <br /> 05/30/01 <2 5 <2 5 280 <2 5 <12 5 <1,250 <125 4.9 12 <br /> r 08/28/01 1<25 <25 340 <25 <130 <13,000 <1,300 <25 <25 <br /> 11/28/01 <5 <5 340 <5 <25 <2,500 <250 <5 12 <br /> 02/27/02 <5 <5 310 <5 <25 <2,500 <250 <5 6.9 <br /> 05/28/02 <5 <5 420 <5 <50 <5,000 <500 <5 81 'a <br /> 09/03/02 r<5 <5 460 <5 <50 <5,000 <500 <5 8.4 <br /> 12/26/02 <50 <50 250 <50 <500 <50,000 <5,000 <50 <50 <br /> EW-2 08/11/00 <50 <50 <50 <50 <250 NA NA NA NA <br /> 12/18/00 <1 <1 <1 <1 _ <5 <200 <50 <1 14 , <br /> 03/13/01 <1 <1 <1 <1 <5 <200 <50 <1 <1 <br /> 05/30/01 <1 <1 <1 <l <5 <200 <50 <1 88 <br /> , <br /> 08/28/01 <1 <1 <1 <l <5 <500 <50 <1 4.7 <br /> 11/28/01 <1 <1 <1 <1 <5 <500 <50 <1 52 <br /> 02/27/02 <1 <1 <1 <l <5 <500 <50 <1 32 <br /> 05/28/02 <0 5 <0 5 <0 5 <0 5 <5 <500 <50 <0 5 34 <br /> 09/03/02 <05 <0 5 <0 5 <0 5 <5 <500 <50 <0 5 10 <br /> 12/26/02 '<0 5 <0 5 <0 5 <0 5 <5 <500 <50 <0 5 72 <br /> Notes <br /> µg/l micrograms per liter <br /> D1PE di-isopropyl ether { c <br /> ETBE ethyl tertiary-butyl ether „ <br /> MTBE methyl ternary-butyl ether <br /> TAME tertiary-amyl methyl ether - <br /> TBA tertiary butanol <br /> EDB 1,2-dibromoethane <br /> 1,2-DCA 1,2-dichloroethane <br /> i <br /> I` <br />