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MOUNTAIN COAL COMPANY, L.L.C. <br />WEST ELK MINE <br />Quarterly Pond Inspection Report <br />Somerset, Gunnison County, Colorado <br />Date: 12/15-17/2009 Quarter: 4th Page 1 of 2 <br />Location: West Elk Mine Inspector: R. Sweetwood, R. Hall <br />Pond Identification MB-1 MB-2R MB-3 MB-4 MB-5 <br />Type of Pond SEDIMENT SEDIMENT SEDIMENT SEDIMENT SEDIMENT <br />Sediment Level % 5 5 5 0 10 <br />Water Level (A rox.) 20% 20% 30% 10% Full Empty <br />Outflow Total (ac-ft) - - - - - <br />Maintenance Repairs <br />XT A A lUoo.aoA ('nmmPntc <br />1' VQ..{Ll l.J <br />Erosional: <br />Yes <br />No <br />Yes <br />No <br />Yes <br />No <br />Rills & Gullies on <br />Embankment Snow covered <br />Inadequate <br />Vegetation <br />Outlet Channel <br />Erosion <br />Burrows <br /> <br />Other . <br /> U (r e <br />Structural: Yes No Yes No Yes No Z <br />Differential Settling ••? <br />Cracks or slides <br />Seepage <br />Other <br /> <br />Appurtenant Structures: Yes No Yes No Yes No <br />Defective Spillways <br />De-watering Device <br />Clogged <br />Faulty Gates, <br />Baffles, Pumps <br />Other <br /> <br />Additional Comments: Added more stream buffer zone signs around MB-5 in preparation for construction in January. <br />Action Required or Needed: