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Environmental Protection Plan, Schwartzwalder Mine <br />• 250 <br />200 <br />d <br />E <br />Z 150 <br />QO <br />C <br />Z <br />V <br />Z <br />V 100 <br />Q <br />50 <br />0 <br />0.3 <br />0.25 <br />• 0.2 <br />2 <br />O <br />i <br />12 0.15 <br />w <br />v <br />z <br />O <br />v <br />s <br />Z 0.1 <br />0.05 <br />0 <br />14-4 <br /> <br /> <br />° ° <br /> <br />° <br />° <br /> <br /> <br />Jan-98 Jan-99 Jan-00 Jan-01 Jan-02 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 <br />•AWD(Up-,&W-ftO Nn) QAD01(D°wn--fW-R-D.W) <br />Jan-98 Jan-99 Jan-00 Jan-01 Jan-02 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 <br />wD(Up--Orw°st.-° D-) 001(D°wnat-.fW-R-D-) <br />Figure 141. Comparison of TDS and Uranium Concentrations in Ralston Creek, Upstream <br />and Downstream of Waste Rock Dumps <br />(b) Geochemical Characterization of Mine Refill Water <br />Processes affecting water quality in the flooded mine were evaluated in a geochemical modeling study by <br />Whetstone Associates(2007). The study used the equilibrium-based geochemical modeling software <br />PHREEQCi 2.14.2 and a modified MINTEQ.v4 database that contained an expanded compilation of <br />• thermodynamic data for uranium and molybdenum. <br />4109C.100731 Whetstone Associates