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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 />(0 <br />WASTE WATER TREATMENT POND # 1 <br />BERM CREST = 6871.5• BOTTOM POND = 6861.5 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: <br />c <br />Sediment level (% total storage) S ?o <br />Outflow (cfs): <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br />Rills & Gullies on Embankments <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 />Defective Spillways <br />Dewatering Device Clogged <br />Faulty Gates, Baffles, Pumps <br />Other <br />ADDITIONAL COMMENTS: <br />MAINTENANCE REQUIRE[ <br /> <br />?r ?2 <br />cad J ?? Z.Clcq ,. <br />w?a "/ vi <br />ad a(, <br />nn. i17 VI r 1'F.A?c 41#. <br /> <br />is/document/grtlypnd/Pondinsp.doc