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OPERATOR: <br />MINE: <br />DATE OF INSPECTION: <br />SEDIMENT POND IDENTIFICATION: <br />REFERENCE ELEVATIONS: <br />TWENTYMILE COAL COMPANY <br />FOIDEL CREEK MINE <br />W7116 <br />POND D <br />RISER CREST = 6849.9; LOWEST HOLE = 6846.5 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: (0-fq • i5 <br />Sediment level (% total storage) '9 /6 <br />Outflow (cfs): <br />0,'50(D Q3 a 2511 <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />Rills & Gullies on Embankments <br />Inadequate Vegetation <br />Outlet Channel Erosion <br />Burrows <br />Other <br />✓ <br />STRUCTURAL: <br />Differential Settling <br />Cracks or Slides <br />f <br />Seepage <br />Other <br />✓ <br />APPURTENANT STRUCTURES: <br />Defective Spillways ✓ <br />Dewatering Device Clogged <br />Faulty Gates, Baffles, Pumps ✓ <br />Other ✓ <br />ADDITIONAL COMMENTS: � <br />MAINTENANCE REQUIRED: !_ E <br />INSPECTOR: • +2r5an <br />is ldocument/grtlypnd/Pondinsp.doc <br />