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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 />POND G <br />RISER CREST = 6833.24, LOWEST HOLE = 6830.34 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: C 6f . 3� <br />V <br />Sediment level (% total storage) '_ /V �!S /4 <br />Outflow (cfs): e /I--e— <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />Rills & Gullies on Embankments <br />Inadequate Vegetation ✓/ <br />Outlet Channel Erosion ,cam <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 <br />Faulty Gates, Baffles, Pumps / <br />Other <br />ADDITIONAL COMMENTS: <br />MAINTENANCE REOUIRET <br />INSPECTOR: <br />i : /document/grtlypnd/Pondinsp.doc <br />