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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 />n <br />POND FCT <br />RISER CREST = 55.0; DEWATER HOLE = 51.8 <br />OPERATIONAL STATUS AT TIME OF INSPECTION <br />Approximate water level: /%- -'!?-Z- .3 <br />Sediment level (% total storage) % 5-% 'e s <br />Outflow (cfs): o, 02 -?r <br />FEATURES PROBLEM COMMENTS <br />EROSIONAL: YES NO <br /> <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 />US I e CV f %le ?'f' ? <br />?t rm e j 6 vckc t <br />/A ctA SvrePon es, <br />AnnITInNAI. CnMMFNTQ- <br />MAINTENANCE <br />is/document/grtlypnd/Pondinsp. doc