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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 />9l2 Y/T�7 <br />WASTE WATER TREATMENT POND # 2 <br />BERM CREST = 6858.5; BOTTOM POND = 6848.5 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: Z G f is S, r <br />0 <br />Sediment level (% total storage) A -/,S- <br />Outflow (cfs): D .U3 <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NOO <br />Rills & Gullies on Embankments o/ <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 f <br />Faulty Gates, Baffles, Pumps ✓ <br />Other <br />ADDITIONAL COMMENTS: <br />MAINTENANCE REQUIRED: AA "—. <br />INSPECTOR: 4, W n -f r:4 �n <br />is /document/grtlypnd/Pondinsp.doc <br />