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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 />/~~-~~~~ <br />WASTE WATER TREATMENT POND # 1 <br />BERM CREST = 6871.5; BOTTOM POND = 6861.5 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: ~ `~(o <br />a y~ <br />Sediment level (% total storage) ~ ~~ a Ji'e/c~u~~ / ~ 2c~U <br />Outflow (cfs): .S/~J t~, ri~r [- -~ 4 ~ ~i0 ~ "C Sf" = <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />Rills & Gullies on Embankments ~ <br />Inadequate Vegetation ~ S~Z./ Cv~~-~/ <br />Outlet Channel Erosion <br />~_ <br />Burrows <br />Other <br />STRUCTURAL: <br />Differential Settling <br />Cracks or Slides ~ <br />Seepage <br />Other <br />APPURTENANT STRUCTURES: <br />Defective Spillways <br />~' <br />Dewatering Device Clogged <br />Faulty Gates, Baffles, Pumps ~ <br />Other <br />ADDITIONAL COMMENTS: <br />MAINTENANCE REQUIRED: ~F~VS fi S,l~s~Brr / h S~ I n~ , <br /> <br />is/documenUgrtlypnd/Pondinsp.doc <br />