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Mining Area <br />Date Inspected <br />Impoundment <br />NPDES ID No <br />Owner's Rep <br />Yoast Mine(Seneca Coal Co) <br />Facility Configuration <br />Date Last Inspected <br />Pond Location <br />Site Location <br />Inspector <br />Cross-vally Pond <br />Quarterly Impoundment Inspection Form <br />3/3/2016 <br />11/3/2015 <br />Pond #011 <br />NWX SWY., Sec. 16, T5N, R87W <br />CO-0000221 D.P.011 <br />8.5 mi SE of Hayden, CO <br />Brian Watterson <br />Jason Herden <br />Mark or Write in Appropriate Res <br />onse: <br />FEATURE <br />PROBLEM <br />COMMENTS <br />YES (Above) NO (Below) <br />GENERAL <br />Water Level (above or below principal spillway) <br />Existing Embsnkmmt Freeboard (5.1 ft) <br />Outflow (gpm) <br />X <br />Water level 2.3 feet below spillway <br />0 <br />5.2 <br />X <br />EROSION <br />Rills & Gullies on Embankment <br />Wave Erosion <br />Spillway Erosion <br />Burrows <br />Other <br />X <br />X <br />X <br />X <br />X <br />STRUCTURAL <br />Differential Settling <br />Cracks or Slides <br />Seepage <br />Other <br />X <br />X <br />X <br />X <br />STRUCTURES <br />Principal Spillway <br />Clogged Orifice <br />Clogged or Damaged Culvert <br />Damaged Headgate <br />X <br />X <br />NA <br />Emergency Spillway <br />Erosion <br />Riprap <br />Clogged or Damaged Culvert <br />Other <br />X <br />X <br />X <br />X <br />MAINTENACE <br />Maintenance Required <br />Maintenance Performed <br />Additional Comments <br />X <br />X <br />X <br />