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Table 7.4 <br />Constituent Transport Modeling Results <br />Results for Hydraulic Gradient = 0.1 <br />~ Parameter Predicted Alluvium Predicted <br /> crease n Groundwater Increase in <br />~ i,,,N.¢-tee °'~ <br />~ wm Background Dakota <br /> Groundwater Groundwater <br /> Concentrations Concentrations <br />Selenium (mglL) 0.0004 < 0.002 0.0002 <br />Thallium (mg/L) 0.00009 NA 0.00004 <br />TDS (mg/L) 12.9 680 6.5 <br />Gross Beta 0.03 NA 0.01 <br />(mrem/y) <br />Results for Hydraulic Gradient = 0.05 <br />Parameter <br />Selenium (mg/L) <br />Thallium (mglL) <br />TDS (mg/L) <br />Gross Beta <br />(mrem/y) <br />Predicte Alluvium Predicted <br />ncrease n Groundwater Increase in <br /> Background Dakota <br />Groundwater Groundwater <br />Concentrations Concentrations <br />0.0008 < 0.002 0.0004 <br />0.0002 NA 0.00009 <br />25.5 680 12.8 <br />0.06 NA 0.03 <br />Results for Hydraulic Gradient = 0.01 <br />Parameter <br />Selenium (mg/L) <br />Thallium (mg/L) <br />~j l~DS (mglL) <br />Q Gross Beta <br />/'~ (mrem/y) <br />~/o~a~ /S p~ J <br />icted <br />Increa in <br />plluvi <br />Groundwater <br />Concentrations <br />0.004 <br />0.0008 <br />120.1 <br />0.28 <br />Alluvium <br />Groundwater <br />Background <br />< 0.002 <br />NA <br />680 <br />NA <br />Predicted <br />Increase in <br />Dakota <br />Groundwater <br />Concentrations <br />0.002 <br />0.0004 <br />62.3 <br />0.14 <br />Dakota CDH <br />Groundwater <br />Background <br />< 0.005 0.02 <br /><0.002 0.002 <br />465 1.25 x <br /> Bkg <br />ND 4.0 <br />Dakota CDH <br />Groundwater <br />Background <br />< 0.005 0.02 <br /><0.002 0.002 <br />465 1.25 x <br /> Bkg <br />ND 4.0 <br />Dakota CDH <br />Groundwater <br />Background <br />< 0.005 0.02 <br /><0.002 0.002 <br />465 1.25 <br /> x Bkg <br />ND 4.0 <br />23 <br />