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1 <br />1 <br />~' <br />Parameter <br />Selenium (mg/L) <br />Thallium (mg/L) <br />TDS (mg/L) <br />Gross Beta <br />(mrem/y) <br />Parameter <br />Selenium (mg/L) <br />Thallium (mg/L) <br />TDS (mg/L) <br />Gross Beta <br />(mrem/y) <br />Parameter <br />Selenium (mg/L) <br />Thallium (mg/L) <br />TDS (mg/L) <br />Gross Beta <br />(mrem/y) <br />Table 7.4 <br />Constituent Transport Modeling Results <br />Results for Hydraulic Gradient = 0.1 <br />~~` ~ <br />;, <br />Predicted Alluvium Predicted Dakota <br />Increase in Groundwater Increase in Groundwater <br />Alluvium Background Dakota Background <br />Groundwater Groundwater <br />Concentrations Concentrations <br />0.0004 < 0.002 0.0002 < 0.005 <br />0.00009 NA 0.00004 <0.002 <br />12.9 680 6.5 465 <br />0.03 NA 0.01 ND <br />Results for Hydraulic Gradient = 0.05 <br />Predicted Alluvium Predicted <br />Increase in Groundwater Increase in <br />Alluvium 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 />Q.06 NA 0.03 <br />Results for Hydraulic Gradient = 0.01 <br />Predicted Alluvium Predicted <br />Increase in Groundwater Increase in <br />Alluvium Background Dakota <br />Groundwater Groundwater <br />Concentrations Concentrations <br />0.004 < 0.002 0.002 <br />0.0008 NA 0.0004 <br />120.1 680 62.3 <br />0.28 NA 0.14 <br />24 <br />Dakota <br />Groundwater <br />Background <br />< 0.005 <br /><0.002 <br />465 <br />ND <br />Dakota <br />Groundwater <br />Background <br />< 0.005 <br /><0.002 <br />465 <br />ND <br />Colorado <br />Water <br />Quality <br />Standard <br />0.02 <br />0.002 <br />1.25 x Bkg <br />4.0 <br />Colorado <br />Water <br />Quality <br />Stanard <br />0.02 <br />0.002 <br />1.25 x <br />Bkg <br />4.0 <br />Colorado <br />Water <br />Quality <br />Standard <br />0.02 <br />0.002 <br />1.25 x <br />Bkg <br />4.0 <br />