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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 />- <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: 6 A ? • S e-1- <br />Sediment level (% total storage) 'es •. S`-LV XU <br />Outflow (cfs): +s = C Z Lj <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 />s?1J <br />cd'j-ey <br />y' <br />r <br /> <br />ADDITIONAL COMMENTS: <br />MAINTENANCE REQUIRED: /V 6l r r? 20 l( CSC/ 1 hti r ) <br />INSPECTOR: 4/9 4, 4 `6-S(w-: <br />is/document/grtlypnd/Pondinsp.doc