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i <br /> 4 L <br /> (CRWQCB-CVR 2004) . <br /> Wells in which 1,2 DCA concentrations exceed WQNLs were graphed <br /> versus time and a first-order exponential decay trendline was added to <br /> show when WQNLs will .be achieved. <br /> Well MW1 <br /> 1,2 ACA concentration in well MWl increased by approximately <br /> one <br /> order of magnitude during 2004 and have since declined. Cardno ERI <br /> prepared a regression based on the analytical data following the 2004 <br /> increase. Based on the regression, the 1,2 DCA WQNL will be achieved <br /> in <br /> well MW1 in approximately 2021. <br /> Well MW3 <br /> 1,2 DCA concentration in well MW3 increased do a maximum <br /> concentration of 350 �zg/L in December 2004 and have since declined. <br /> Cardno ERI prepared a regression based on the analytical data <br /> following <br /> the December 2004 sampling event. Based on the regression, the 1,2 <br /> DCA <br /> WQNL will be achieved in well MW3 in approximately 2028. <br /> Well MW4 <br /> well MW4 was first sampled in June of 2005 and does not show <br /> the <br /> increase observed in wells MW1 and MW3 during 2004 . Cardno ERI <br /> prepared <br /> a regression based on the all of the analytical data collected from <br /> well <br /> MW4. Based on the. regression, the 1,2 DCA WQNL will be achieved in <br /> well <br /> MW4 in approximately 2014 . <br />'4 Remaining Wells <br /> f <br /> i <br /> Regressions were not performed on wells MW2, MWS, MW7, MW.8, <br /> MW9, <br /> or MW10. Well MW2, MW8, and MW9 have not had a reportable <br /> I concentration <br /> above the laboratory reporting limit during the monitoring program. <br /> f Well MWS and MW7 has not had a reportable concentration of 1, 2 DCA <br /> since <br /> 4 <br />