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G.) Completion of the Hydrologic Reclamation Plon <br /> Yoast Mine has been reclaimed utilizing the approved practices and measures described within <br /> the C-1994-082 permit. This application is only for a partial Phase III Bond release. A discussion <br /> of the Completion of the Hydrologic Reclamation Plan will be provided with the final Phase III <br /> bond release package. <br /> H.) Findings of the Protection of Hydrologicol eolonce <br /> The disturbance of the hydrologic balance within and adjacent to the permit area have been <br /> minimized through the use of best management practices. Groundwater levels fall within historic <br /> ranges at all bedrock and alluvial wells except for bedrock well YOV30. YOV30 is screened <br /> within the Wadge overburden and the water level has generally been declining since it was <br /> installed in 1990. YOV30 is part of a well cluster that includes YW30 which monitors the <br /> Wadge Coal seam and YWU30 which monitors the Wadge underburden. This well cluster is <br /> located immediately adjacent to the mining area and the water level returns are dependent on the <br /> time necessary for the spoil to become saturated. Groundwater levels recently returned to pre- <br /> mine ranges in the underburden (2008) and Wadge Coal seam (2014). The water level in YOV30 <br /> has also exhibited some stabilization during the last three years (2014—2018) with the water <br /> level fluctuating between 7451 —7453 ft msl. YOV30 is screened within the shallowest interval <br /> of these three units and its not unexpected that the water levels would take longer to stabilize <br /> than the lower bedrock units. The radius of influence from the water level drawdown in the <br /> adjacent bedrock is expected to be limited in aerial extent based on the low hydraulic <br /> conductivity of the bedrock materials. Additional information concerning groundwater levels at <br /> Yoast Mine is provided in the 2018 Yoast Mine Annual Hydrology Report. <br /> Groundwater quality meets all applicable standards at compliance wells SGAL-70 and YSAL3. <br /> Bedrock groundwater point of compliance wells were deemed unnecessary based on the absence <br /> of the potential for the mine to negatively impact the bedrock groundwater quality. Disturbance <br /> to adjacent surface water bodies were minimized through the proper utilization of drainage and <br /> sediment control structures. As discussed in detail in the sections above the discharges from the <br /> mines site meet the NPDES permitted limits and the receiving streams meet all applicable <br /> surface water quality standards except for the occasional excursion of total recoverable iron. The <br /> SL-7 - 47 <br />