Laserfiche WebLink
In addition to the monitoring discussed above, the operator is required to monitor <br />discharges from two NPDES discharge points (sediment ponds) as required by the <br />mine's NPDES permit. <br />H. Transfer of Wells <br />No transfer of wells is proposed. Monitoring wells HGDAL3, HGDAL4, and the <br />Yampa Valley Alluvial Well will be reclaimed prior to bond release (4.05.14). <br />I. Discharge of Water into an Underground Mine <br />No surface water will be discharged into underground mine workings (4.05.15). <br />J. Stream Buffer Zones <br />A buffer zone is proposed along Dry Creek and Sage Creek. No mining activities <br />are permitted to take place within 100 feet of Dry Creek or Sage Creek with the <br />exception of: <br />1. The Rail Loop <br />2. The tracks and right of way for railway loop <br />3. Loadout facilities water line <br />4. Electric substation <br />5. TAHR <br />1. The Division approved surface mining activities within 100 feet of a <br />perennial stream with a biological community. This decision was based on a <br />finding that the original stream channel will be restored, water quality and <br />quantity will not be adversely affected as a result of the disturbance, and <br />appropriate riparian vegetation will be reestablished upon final reclamation. <br />(4.05.18(1). <br />K. Probable Hydrologic Consequences <br />The probable hydrologic consequences of mining within the HGT permit area are <br />addressed within Volume 2, Tab 15 of the permit application. The permittee's <br />statement of hydrologic effects has been reviewed by the Division for compliance <br />with Rule 4.05.1 and 2.05.6(3). <br />1. Surface Water Impacts <br />Surface water runoff from the Loadout area passes through one of two <br />sedimentation ponds. Discharges from these ponds are subject to effluent <br />limitations identified in HGT's NPDES permit. The existing ponds have <br />performed adequately and no discharges in excess of NPDES effluent limits <br />have been reported to date. <br />Hayden Gulch Loadout 23 November 22, 2011 <br />