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A <br />OPERATOR: <br />MINE: <br />DATE OF INSPECTION: <br />SEDIMENT POND IDENTIFICATION: <br />REFERENCE ELEVATIONS: <br />TWENTYMILE COAL COMPANY <br />FOIDEL CREEK MINE <br />POND F <br />RISER CREST = 6827.0: DEWATER HOLE = 6823.0 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: `~~ (~3 FULL <br />Sediment level (% total storage) '~ 5 °/~, <br />Outnow (cfs): N IF <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />Rills & Gullies on Embankments / <br />Inadequate Vegetation ~ <br />Outlet Channel Erosion / <br />Burrows t/ ' <br />Other <br />STRUCTURAL: <br />Differential Settling l/ <br />Cracks or Slides / <br />Seepage <br />Other `~ <br />APPURTENANT STRUCTURES: <br />Defective Spillways <br />Dewatering Device Clogged / <br />Faulty Gates, Baffles, Pumps J~ <br />Other ~~ <br />ADDITIONAL COMMENTS: <br />MAINTENANCE <br />is/pond/q rtlypnd/Pond insp. doc <br />