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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 />12-T~o~ <br />RISER CREST = 6833.24: LOWEST HOLE = 6830.34 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water Ievel: c 6 (Y 30 , 3 y <br />v <br />Sediment level (% total storage) 'S^-(rU r6 is ~- . <br />Outflow (cfs): / V Q ~ W <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />Rills & Gullies on Embankments <br />Inadequate Vegetation _ <br />Outlet Channel Erosion ~ <br />Burrows Z/ ' <br />Other _ <br />STRUCTURAL: <br />Differential Settling <br />Cracks or Slides <br />Seepage _~ <br />Other <br />APPURTENANT STRUCTURES: <br />Defective Spillways <br />Dewa[ering Device Clogged <br />Faulty Gates, Battles, Pumps <br />Other <br />ADDITIONAL <br />MAINTENAN( <br />sJ G(~eUiC~l WI 2~ Caw ~ i1C'.~ <br />~ ~~9 . ~ 6 <br />v <br />v >=- <br />i:/document/grtlypnd/Pondinsp.doc <br />