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QUARTERLY POND INSPECTION REPORT <br />• Fourth Quarter 1986 <br />OPERATOR:Snowmass Coal Co. <br />MINE: North Thompson Creek Mines <br />DATE OF INSPECTION: 12-18-86 <br />1 2 3 4 5 <br />POND IDENTIFICATION <br />TYPE OF POND <br />P-6 P-7 P-8 P-9 Up. Wash Plt <br />Detention Dention Detention Sediment Process Sed. <br />OPERATiONAI STATUS AT TIME OF INSPECTION <br />Approximate water level: All below de-watering devices <br />Sediment level ~X total storage): P-9 5Y estimated <br />Outflow {cfs): None <br />FEATURES <br />PR(1R1 FM r.OMMFNTt <br />EROSIONAL: Yes No <br />Rills 8 Gullies on Embankment X <br />Inadequate Vegetation X <br />Outlet Channel Erosion <br />Burrows <br />Other <br />STRUCTURAL: Yes No <br />Differential Settling <br />Cracks or Slides <br />Seepage <br />ether X <br />APPURTENANT STRUCTURES: Yes No <br />Defective Spillways X <br />Dewatering Device Clogged % <br />Faulty Gates, Baffles, Pumps X <br />Otfier X <br />ADD1Ti0NAl COMMENTS: None <br />MAINTENANCE REQUIRED: None <br />NAME OF INSPECTOR: Larry M. Reschke <br />