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TABLE 2 <br /> GROUNDWATER ANALYTICAL RESULTS FOR OXYGENATES <br /> AND ADDITIONAL COMPOUNDS(U S EPA METHOD 8260) <br /> Former ARCO Service Station No 2168 <br /> 441 Charter Way <br /> Stockton,California <br /> Well <br /> Sample TBA MTBE DIPE ETBE TAME 1,2-DCA <br /> Number Date µg/l- µg/L µg/L µg/L µg/L µg/L <br /> MW-7 11/17/97 NA NA NA NA NA NA <br /> 5122/98 <10,000 <100 <100 <100 <100 NA <br /> 8112198 <200 <2 <2 <2 <2 NA <br /> 11/9/98 <200 <2 <2 <2 <2 NA <br /> 2/17/99 <200 <2 <2 <2 <2 NA <br /> 5125/99 <200 <2 <2 <2 <2 NA <br /> 8/18/99 <200 <2 <2 <2 <2 NA <br /> 12/17/99 <200 <2 <2 <2 <2 NA <br /> 2/22100 <200 <2 <2 <2 <2 NA <br /> 6122100 <200 <2 488 <2 <2 NA <br /> 8130/00 <200 <2 <2 <2 <2 <2 <br /> 11/21/00 <200 <2 <2 <2 <2 <2 <br /> 2115101 <200 <2 <2 <2 <2 <2 <br /> 5/17/01 <1,000[2] <10[2] <10[2] <10[2] <10[2] <10[2] <br /> 8/16/01 <200 <2 <2 <2 <2 <2 <br /> 12/6/01 <50[21 <5 0[2] <5 0[2] <5 0[2] <5 0[2] <5 0[2] <br /> MW-8 8/30/00 <200 <2 <2 <2 <2 3 38 <br /> 11/21/00 <200 <2 <2 <2 <2 218 <br /> 2115/01 <200 <2 <2 <2 <2 346 <br /> 5/17/01 <200 <2 <2 <2 <2 264 <br /> 8/16/01 <200 <2 <2 <2 <2 32 <br /> 12/6/01 <50 <0 50 <0 50 <0 50 <0 50 3 6 <br /> MW-813 8130/00 <200 <2 <2 <2 <2 380 <br /> 11/21/00 <200 <2 <2 <2 <2 382 <br /> 2115101 <200 <2 <2 <2 <2 436 <br /> 5/17/01 <200 <2 <2 <2 <2 258 <br /> 8/16101 <200 <2 <2 <2 <2 <2 <br /> 1216101 <5 0 <0 50 <0 50 <0 50 <0 50 2 8 <br /> MW-8C 8/30/00 <200 <2 <2 <2 <2 <2 <br /> 11/21/00 <200 <2 <2 <2 <2 <2 <br /> 2/15101 <200 <2 <2 <2 <2 <2 <br /> 5117/01 <200 <2 <2 <2 <2 <2 <br /> 8116101 <200 <2 <2 <2 <2 <2 <br /> 12/6/01 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 <br /> µg/L—Analytical results m micrograms per liter <br /> TBA�Tertiary butyl alcohol [1]This sample was analyzed outside of EPA recommended hold time <br /> MTBE=Methyl tertiary butyl ether <br /> DIPE=Di-Isopropyl ether [2]The reporting limit(s)for this sample have been raised due to <br /> ETBE=Ethyl ternary butyl ether high levels of non target mterferents <br /> TAME=Tertiary amyl methyl ether <br /> 1 2-DCA=1 2 Dichloroethane <br /> <=Below detection limit for analytical methods used <br /> Arco_2168_Quarterly_Data xis 4 of 4 pelta <br />