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than 2 feet) at distance from the mine site. North of the mine site, the one foot drawdown <br />contour line contracted approximately one mile to within approximately 1,300 feet of the <br />north mine boundary (Figure 8). <br />Extending the dewatering period to 20 years did not increase drawdown from that <br />observed during the 15 year dewatering period, indicating that steady state conditions <br />were achieved prior to the end of year 15. <br />The generalized Parsons Mine groundwater model and simulation results rely on what are <br />believed to be reasonable assumptions regarding hydrogeologic conditions in the <br />modeled area. The groundwater users potentially affected by Parsons Mine dewatering <br />and reclamation activities were identified from Colorado State Engineer's Office records <br />and limited site reconnaissance (see Groundwater Monitoring and Mitigation Plan). If <br />other permitted or unpermitted wells exist, potential effects should be specifically <br />evaluated. <br />EnviroGroup Limited 11