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Mining Area Yoast Mine(Seneca Coal Col Facility Configuration Stockpond <br /> Date Inspected 3/1/2018 Date Last Inspected 10/18/2017 <br /> Impoundment Stock Tank ST-1 Pond Location SW%Sec.20,T5N,R87W Quarterly Impoundment Inspection Form <br /> NPDES ID No N/A Site Location 8.5 mi SE of Hayden,CO <br /> Owner's Rep Miranda Kawcak Inspector Jason Herden <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 <br /> EROSION <br /> Rills&Gullies on Embankment X <br /> Wave Erosion X <br /> Spillway Erosion X <br /> Burrow's 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 NA <br /> Clogged or Damaged Culvert NA <br /> Damaged Headgate NA <br /> Emergency Spillway <br /> Erosion X <br /> Riprap X <br /> Clogged or Damaged Culvert NA <br /> Other X <br /> MAINTENACE <br /> Maintenance Required X No access due to winter conditions <br /> Maintenance Performed X <br /> Additional Comments X <br />