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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 />POND D <br />RISER CREST = 6849.9; LOWEST HOLE = 6846.5 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: 6F Y6, 7 <br />0 <br />Sediment level (% total storage) 0 <br />Outflow (cfs): Q. 2 3 2-!q <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES N(y <br />Rills &Gullies on Embankments r/ <br />Inadequate Vegetation <br />Outlet Channel Erosion 7 <br />Burrows <br />Other <br />STRUCTURAL: <br />Differential Settling <br />Cracks or Slides <br />Seepage <br />Other <br />APPURTENANT STRUCTURES: <br />Defective Spillways <br />Dewatering Device Clogged <br />Faulty Gates, Baffles, Pumps <br />Other <br />ADDITIONAL COMMENTS: / <br />MAINTENANCE REQUIRED:(i <br />INSPECTOR: <br />i : /document/grtlypnd/Pondinsp.doc <br />