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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 />THICKNER UNDERFLOW HOLDING POND <br />RISER CREST = 6827.0; DEWATER HOLE = 6823.0 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: ft ` <br />Sediment level (% total storage) Q it k nowa, <br />Outflow (cfs): 0 <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />STRUCTURAL: <br />Rills & Gullies on Embankments <br />Inadequate Vegetation <br />Outlet Channel Erosion <br />Burrows ✓ <br />Other <br />Differential Settling L <br />Cracks or Slides <br />Seepage <br />Other <br />APPURTENANT STRUCTURES: <br />Defective Spillways 1✓ <br />Dewatering Device Clogged 1✓ <br />Faulty Gates, Baffles, Pumps <br />Other <br />ADDITIONAL COMMENTS: �Plt�1 De1'G;��1 %� �Cu►�,- D b 1'MCcc�`1 C��t'/1, <br />MAINTENANCE REQUIRED: <br />INSPECTOR: ✓ irZtcLfA KQi,:.(cj. im(CiAaO (3ef-din-C <br />is /document/grtlypnd/Pondinsp. doc <br />