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KERR COAL COMPANY <br />KERR MINE <br />QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />Pond D <br />Date 12-15-97 <br />1. Water Level (above or below dewatering orifice) Above_ Below X 0.4 Ft <br />2. Sediment Level [below dewatering orifice (designed sediment level)] 3.0 Ft <br />3. Sediment Removal Required Yes No <br />4. Outflow (depth of flow in weir) 0 Ft <br />5. Outflow 0 CFS <br /> PROBLEM <br />FEATURES <br />YES <br />NO COMMENTS <br />EROSION: <br />Ri11s 6 Gullies on Embankments <br />X <br />Wave Erosion X 16" wave cutting. <br />Spillway Erosion X <br />Burrows X <br />Others X <br /> <br />STRUCTURAL: <br />Differential Settling <br />X <br />Cracks or Slides X <br />Seepage x <br />Other X <br /> <br />STRUCTURES: <br />Principal Spillway <br />Clogged Orifice <br /> <br />X <br />Clogged or Damaged Culvert X <br />Weir X <br />Emergency Spillway <br />Erosion <br />X <br />Riprap X <br /> <br />MAINTENANCE REQUIRED: Riprap wave erosion area. <br />Rescheduled early 1998. <br />MAINTENANCE PERFORMED: None. <br />ADDITIONAL COMMENTS: Partially snow b ice covered. <br />Pond oversize due to previous sediment removal. <br />~. R• .- r.. .. <br />NAME OF INSPEC TO ~ ~~~:.~jS F ~;<<~~`~_ <br />V e ~. <br />~• `,~ a C\\ <br />"'i i i t 1111~1~~~ <br />