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is <br />RERR COAL COMPANY <br />RERR MINE <br />QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />Pond A <br />Date 12-15-97 <br />1. Water Level (above or below dewatering orifice) Above_ Below X <br />2. Sediment Level [below dewatering orifice (designed sediment level)) <br />3. Sediment Removal Required Yes <br />4. Outflow (depth of flow in weir) <br />5. Outflow <br />0.6 Ft <br />3.5 Ft <br />No <br />0 Ft <br />0 CFS <br /> PROBLEM <br />FEATURES <br />YES <br />NO COMMENTS <br />EROSION: <br />R ills S Gullies on Embankments <br />X <br />Wave Erosion X 18" 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: Partial snow fi ice covered. <br />Pond oversize due to previous sediment removal. <br />\\\\\\1111111I11////~ , <br />NAME OF INSPECTOR L~ ~ / I "~~ <br />,~ ° ~ <br />p~,•oPS ~ f ~? :CFO <br />~' . x <br />__ ~~ 31 coo°- ~ x <br />"o ' ~ <br />~F~'•.. ~~Z \ <br />/~ <br />m <br />