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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 />r <br />POND D <br />RISER CREST = 6849.9• LOWEST HOLE = 6846.5 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: s? L144 <br />d, <br />Sediment level (% total storage) <br />Outflow (cfs): (? n C IS <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />Rills & Gullies on Embankments <br />i/ <br />Inadequate Vegetation <br />Outlet Channel Erosion "S <br />Burrows <br />Other <br />STRUCTURAL: <br />Differential Settling ill <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 />ADDITIONAL COMMENTS: 0?'Lo vd Z dl f <br />MAINTENANCE REQUIRED: d vim. . ( U <br />INSPECTOR: KI W C? I"1 v ?t9 ?^ <br />is/document/grtlypnd/Pondinsp.doc