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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 BTBB TAMB 1,2-DCA <br /> Number Date gs/L µg/L pg/L µg/L µg/L 1ig/L <br /> MW-5 11/17/97 NA NA NA NA NA NA <br /> 5121/98 <10,000 <100 <100 <100 <100 NA <br /> 8/12/98 <2,000 <20 <20 <20 <20 NA <br /> 1119/98 <200 <2 <2 <2 <2 NA <br /> 2/17/99 <200 <2 <2 <2 <2 NA <br /> 5/25/99 <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 /> 6122/00 <200 <2 <2 <2 <2 NA <br /> 8/30100 <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 /> 5117101 <200 <2 <2 <2 <2 <2 <br /> 8/16/01 <200 <2 <2 <2 <2 <2 <br /> 12/6101 <50[2] <5 0[2] <5 0[2] <5 0[2] <5 0[2] <5 0[21 <br /> 2114/02 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 <br /> MW-6(41) 11/17/97 <3,300 <67 <67 <67 <67 NA <br /> 5/22/98 <10,000 ' <100 <100 <100 <100 NA <br /> 8/12198 <20,000 <200 <200 <200 <200 NA <br /> 11/9/98 <200 <2 <2 <2 <2 NA <br /> 2/17199 <200 <2 882 <2 <2 NA <br /> 5125199 <200 <2 <2 <2 <2 NA <br /> 8/18/99 <200 478 <2 <2 <2 NA <br /> 12/17/99 <200 <2 <2 <2 <2 NA <br /> 2122/00 <200 <2 <2 <2 <2 NA <br /> 6122/00 <200 <2 <2 <2 <2 NA <br /> 8/30/00 <200 <2 432 <2 <2 252 <br /> 11/21/00 <200 <2 476 <2 <2 242 <br /> 2/15/01 <200 <2 <2 <2 <2 123 <br /> 5/17/01 <4,000[21 <40[2] <40[2] <40[2] <40[2] <40[2] <br /> 8116101 <5,000[2] <50[2] <50[2] <50[2] <5D[2] <50[2] <br /> 12/6101 <1,000[2] <100,2, <100[2] <100[2] <100[2] <100,2, <br /> 2114/02 <500[2] <50[2] <50[2] <50[2] <50[21 <50[2] <br /> Arco_2168_Quarterly_Data xis 3 of4 Delta <br />