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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 />IzItN (v (,, <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: '1 6 ~ ~ <br />Sediment level (% total storage) L~ ~o ~~~c{ r,~ccY Zc>) <br />Outflow (cfs): VOl /[ ~ S _ t7 - ~ ~ 6 ~ /rw ~ ~ /J . <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 t/ <br />Faulty Gates, Baffles, Pumps _~ ~-~H,{d ls' r1 Qe~ <br />Other ~"kd'1'u/s rCr~aC~' ~R`~L <br />l~~ ~L tn/r nvf rqI /c ~ c c I-n i nS <br />ADDITIONAL COMMENTS: ~ A w i r es Tk w ZaG~ <br />MAINTENANCE <br />o r~ <br />i:/documenl/grtlypnd/Pondinsp.doc <br />