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III IIIIIIIIIIIIIIII <br />999 <br />OPERATOR: TWENTYMILE COAL COMPANY <br />MINE: ' <br />DATE OF INSPECTION: ~ 02 I GI D <br />-~-r <br />SEDIMENT POND IDENTIFICATION: POND G <br />REFERENCE ELEVATIONS: <br />RISER CREST = 6833.24: LOWEST HOLE = 6830.34 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: ' / Z ~ V l L <br />Sediment level (% total storage) .l~h <br />Outflow (cfs): 7-ra r= F C'~~ E = ~.t7 ~ <br />G~S=~ <br />FEATURES PROBLEM COMMENTS <br /> <br />EROSIONAL: YES NO <br /> <br />Rills & Gullies on Embankments <br />' Inadequate Vegetation <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 />Dewatering Device Clogged ~"// <br />Faulty Gates, Baffles, Pumps ~~R <br />Other <br />ADDITIONAL <br />MAINTENAN( <br />