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<br />~~ <br /> <br />OPERATOR: <br />MINE: <br />DATE OF INSPECTION: <br />SEDIMENT POND IDENTIFICATION: <br />REFERENCE ELEVATIONS: <br />TWENTYMILE COAL COMPANY <br />FOIDEL CREEK MINE <br />~~a ~ <br />WASTE WATER TREATMENT POND # 1 <br />BERM CREST = 6871.5; BOTTOM POND = 6561.5 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: ^' 6 8'Z!'1 ~r / <br />Sediment level (% total storage) '~.~ ~ (dre,~btd ~V 3 <br />Outflow (cfs): ~tt,/t ZS G - d ~ ~ v~~ . /hr/ . ~G / R . <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 />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 />~~ <br />f <br />a~ <br />ADDITIONAL COMMENTS: IV~W /Yldfcfl/s 6/o~erl~ ~/,( rt~yhfU(S . <br />MAINTENANCE REQUIRED: ~e/olatln.~f~n~ F/e~ Q(7in/2/~-~it/e o/~nd~tf/cl ~2/2c <br />is/documenUgIIlypnd/Pondinsp.doc <br />