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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 />12L-4 o- <br />18 LT POND i <br />BARREL OUTLET HOLE = 6860.5 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: % ki' 60 <br />Sediment level (% total storage) a Cho <br />Outflow (cfs): Le W—, <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />Rills & Gullies on Embankments t/ S? -X ow CO ✓C�- — <br />Inadequate Vegetation checA� <br />Outlet Channel Erosion <br />Burrows <br />Other <br />STRUCTURAL: <br />Differential Settling `� <br />—7- <br />Cracks <br />%Cracks or Slides j <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: <br />INSPECTOR: <br />ildocument/grtlypnd/18 LT Pondinsp.doc <br />