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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 />64g <br />WASTE WATER TREATMENT POND # 1 <br />BERM CREST = 6871.5: BOTTOM POND = 6862.5 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: b1% <br />Sediment level (% total storage) '� 10% <br />Outflow (cfs): Arm 0.D3b CiS <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />Rills & Gullies on Embankments t✓, <br />Inadequate Vegetation k" <br />Outlet Channel Erosion ✓' <br />Burrows ✓ <br />�J 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 <br />Other <br />ADDITIONAL COMMENTS: <br />MAINTENANCE REQUIRED: MW <br />O <br />i :documentlgrtlypnd/Pondinsp.doc <br />