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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 />_3/S O/ <br />POND G <br />RISER CREST = 6833.24; LOWEST HOLE = 6830.34 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: ~g Z7, z9 T~~ OF /LsE <br />Sediment level (% total storage) '-S ~~lri <br />Outflow (cfs): - ©~' <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO , <br />Rills & Gullies on Embankments <br /> <br />Inadequate Vegetation v <br />_ <br /> ~ s'J~ ~V~~ <br />Outlet Channel Erosion <br />B _ <br />~ <br />urrows _ <br />Other <br /> <br />STRUCTURAL: / <br />Differential Settling t/ <br /> / <br />Cracks or Slides / ,SNOW COVIE!<t~D <br />~ <br />Seepage _ <br />Other <br />APPURTENANT STRUCTURES: <br />Defective Spillways <br />Dewatering Device Clogged ~/ <br />Faulty Gates, Baffles, Pumps Y , <br />Other _// <br />ADDITIONAL <br />MAINTENANCE <br /> <br />is/documenVgrtlypnd/Pondinsp.doc <br />