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Pond Outfall Pond Outfall Number Notes Number Notes 001 Old Refuse Pile, East U er Middle Lower 006 Old Refuse Pile, To 008 Bus Gaza e East West North 010 Warehouse U er Lower 013 Mine 4 Ol7 Mine 5 I 018 Mine 1 U er Lower 021 Sute Refuse Pile U er Lower 022 Mine 2 U er Lower 023 Mine 3 Bin Pad 024 SI Pond 025 Rock Tunnel Pad The Best Management Practices employed included severe surface roughening of excavated pond embankments and access roads in order to disrupt surface flows and to minimize erosion potential, construction at a point in time where water levels were low so as to not impact water quality with sediment, revegetation of all disturbed areas with appropriate wetlands and uplands azea seed mixtures in order to promote long term stability of the sites, planting of shrubs along the pond perimeters in order to establish a vegetative sediment barrier, and placement of silt fence below excavation areas in order to retain sediment prior to it entering adjacent water resources. No dewatering of any pond was required, as most ponds were devoid of water at the time of construction. Water, when present, was well below the elevation of the invert of the dewatering devices, and therefore, well below the elevation of the construction area. Reclamation construction at each of the ponds was accomplished in the same manner. Construction began by excavating the corrugated metal pipe (CMP) dewatering device located within each pond. The excavation was widened to five feet minimum width. Excavated dirt was generally used as a topsoil substitute at the top of the pond embankment, along a small portion of the pond margin, or on associated access roads. The CMP was removed to a central area for storage prior to removal from the site. During removal of the CMP, the side slopes of each cut were reduced to 2.5 H : 1 V. They were then severely roughened in order to minimize erosion potential and to promote successful revegetation. Following completion of excavation, two courses of rip rap were placed within the cut. The first was mechanically pushed into the excavated embankment at the base and into the lower portion of the side cuts. The second course was placed over the first. Access roads, where existent, were reclaimed by sloping them toward the outside margin of the road, and then severely roughening them. A wetlands seed mixture was distributed around the perimeter of each pond from the water level to an elevation ten feet above the water ]evel. An upland, high altitude reclamation seed mixture was distributed on any ..