Laserfiche WebLink
10) Effects of runoff from reclaimed areas on the quality of streamflow. Due to the relatively <br />small area of disturbance in the New Horizon 2 mining area, any reductions in runoff will have only <br />a minimal impact on streamflow quantity, as flow in Calamity Draw is dominated by irrigation return <br />flow. Decreased sediment loads predicated by SEDCAD+ indicate that reclamation efforts <br />conducted in the mining area will ensure that additional contributions of suspended sediment in <br />runoff from reclaimed areas will not occur. Effects of runoff from reclaimed areas on the quality of <br />streamflow. Based on past operating history at the Nucla Mine, no significant trend toward higher <br />concentrations of the selected parameters have been detected. In addition, the pond discharge will <br />be monitored in accordance with NPDES discharge limitations and any potential impact will be <br />identified. Therefore, runoff from the reclaimed area should have no significant impact over time <br />on the quality of receiving stream water quality. As a result, post mining land uses which currently <br />occur in the area should not be affected due to the mine plan which has been approved. <br />Summary. The discussion presented herein of the probable hydrologic consequences of the <br />revised mine plan approved by WFC identifies the potential effects of mining. Table 2.05.6(3) -1 <br />summarizes the discussion by listing the probable hydrologic consequences and the results of the <br />analysis of each. As can be seen, all of the probable impacts have been determined to be of a <br />short term nature, of minimal significance, or a plan has been presented to mitigate those <br />determined to have some significance. As a result, mining and post mining effects to current land <br />uses should be negligible. <br />Revised September 2014 (TR -64) 2.05.6(3) -44 <br />