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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 />3~27(a 7 <br />RISER CREST = 6907.9; LOWEST HOLE = 6904.9 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: ClI D ~ 0 /Z <br />Sediment level (% total storage) /!e ('n /tr~e( C ~k S'f' ~~c7 %d <br />Outflow (cfs): U/rC'/ n'd • (ZS' = Q.O13 ~ C ~S <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />Rills & Gullies on Embankments ~ <br />7 <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 />r/ <br />Defective Spillways / <br />Dewatering Device Clogged (/ / <br />Faulty Gates, Baffles, Pumps _/ <br />Other <br />ADDITIONAL COMMENTS: <br />MAINTENANCE REQUIRED: ~Ir~GFI' C~ ~ ~ ~ ~~~ S.A/i~isl d7_ <br />is/pond/grtlypnd/Pondinsp.doc <br />a ~ ~~ Y <br />