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Mining Area Yoast Mine(Seneca Coal col Facility Configuration Cross-Vally Pond <br /> Date Inspected 9/25/2018 Date Last Inspected 5/21/2018 <br /> Impoundment Pond#011A Pond Location sws.Nw} Sec.16,T5N,R87w Quarterly Impoundment Inspection Form <br /> NPDES ID No N/A Site Location 8.5 mi 5E of Hayden,CO <br /> Owner's Rep Miranda Kawcak Inspector Nicholas Aromando <br /> Mark or Write in Appropriate Response: <br /> FEATURE PROBLEM COMMENTS <br /> YES(Above) NO(Below) <br /> GENERAL' <br /> Water Level(above or below principal spillway) X Water level 2 feet below top of pipe <br /> Existing Embankmrnt Freeboard(4.6 ft) 6.6 <br /> Outflow(gpm) X 0 <br /> EROSION <br /> Rills&Gullies on Embankment X <br /> Wave Erosion X <br /> Spillway Erosion X <br /> Burrows X <br /> Other X <br /> STRUCTURAL <br /> Differential Settling X <br /> Cracks or Slides X <br /> Seepage X <br /> Other X <br /> STRUCTURES <br /> Principal Spillway <br /> Clogged Orifice X <br /> Clogged or Damaged Culvert X <br /> Damaged Headgate NA <br /> Emergency Spillway <br /> Erosion X <br /> Riprap X <br /> Clogged or Damaged Culvert X <br /> Other X <br /> AfAINTENACE <br /> Maintenance Required X Sediment level 2.5 feet below top of pipe(OK) <br /> Maintenance Performed X <br /> Additional Comments X <br /> Top of Sediment Storage=2.1 feet below top of pipe <br />