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OPERATOR: TWENTYMILE COAL COMPANY <br />MINE: FOIDEL CREEK MINE <br />DATE OF INSPECTION: 3/Zbl is <br />SEDIMENT POND IDENTIFICATION: AREA #1 PIT <br />REFERENCE ELEVATIONS: RISER CREST = 6854.11; BOTTOM OF DEWATERING <br />CULVERT = 6851.47 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: '— 6 D Su <br />Sediment level (% total storage) 10C110 ( <br />Outflow (cfs): d C`1, <br />FEATURES <br />PROBLEM COMMENTS <br />EROSIONAL: <br />YES NO <br />Rills & Gullies on Embankments <br />/� <br />V <br />Inadequate Vegetation <br />V <br />Outlet Channel Erosion <br />Burrows <br />Other <br />STRUCTURAL: <br />Differential Settling <br />✓j <br />Cracks or Slides <br />✓ <br />Seepage <br />�C <br />Other <br />APPURTENANT STRUCTURES: <br />Defective Spillways ✓ <br />Dewatering Device Clogged <br />Faulty Gates, Baffles, Pumps <br />Other <br />ADDITIONAL COMMENTS: I <br />MAINTENANCE REQUIRED: ! knje _ <br />0 INSPECTOR: <br />i documen[ grtlypnd/Pondinsp.doe <br />