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Colowyo Coal Company Stockpond Inspections <br />5731 State Highway 13 East Pit <br />Meeker, CO 81641 <br />Fourth Quarter 2013 <br />I am a Licensed Professional Engineer in the State of Colorado. The information contained in this document was provided by <br />Colowyo Coal L.P. Being familiar with the Colowyo operation, and relying on the information provided to me by Colowyo <br />Personnel, the information contained herein is reasonable and correct to the best of my knowledge and experience. <br />Note: (d) impoundment volumes are estimated from pre- existing as -built surveys, and estimates of accumulated sediment. <br />CF 21.1.2 2013 <br />�Otil l i f illf,fl, <br />PD U / C i'i <br />.... F i� <br />SAM % �jn ''_ <br />, °���vn� <br />47031 <br />1/41111111 1 <br />POI <br />PD2 <br />Will <br />EP1 <br />EP2 <br />Inspection Date: <br />12/3/2013 <br />12/3/2013 <br />12/3/2013 <br />12/3/2013 <br />12/3/2013 <br />Inspector: <br />Kurt Blunt <br />Kurt Blunt <br />Kurt Blunt <br />Kurt Blunt <br />Kurt Blunt <br />Lee Sampson <br />Lee Sampson <br />Lee Sampson <br />Lee Sampson <br />Lee Sampson <br />Rule 4.05.9 (15) <br />(a) <br />Does pond exhibit <br />None <br />None <br />None <br />None <br />None <br />structural weakness, <br />erosion, or other <br />hazardous conditions? <br />( b) <br />Quarterly/ <br />Quarterly/ <br />Quarterly/ <br />Quarterly/ <br />Quarterly/ <br />Monitoring Procedures <br />Annual <br />Annual <br />Annual <br />Annual <br />Annual <br />and Instrumentation <br />Inspections <br />Inspections <br />Inspections <br />Inspections <br />Inspections <br />(c) <br />Elevation & As -built <br />7353.0 <br />7560.0 <br />7385.0 <br />7372.0 <br />7492.0 <br />Depth Water Level <br />( d ) <br />Existing Storage <br />1.09 ac -ft. <br />1.49 ac -ft. <br />2.02 ac -ft. <br />1.29 ac -ft. <br />2.43 ac -ft <br />Capacity <br />( 0) <br />Maintenance Items <br />None <br />None <br />None <br />None <br />None <br />I am a Licensed Professional Engineer in the State of Colorado. The information contained in this document was provided by <br />Colowyo Coal L.P. Being familiar with the Colowyo operation, and relying on the information provided to me by Colowyo <br />Personnel, the information contained herein is reasonable and correct to the best of my knowledge and experience. <br />Note: (d) impoundment volumes are estimated from pre- existing as -built surveys, and estimates of accumulated sediment. <br />CF 21.1.2 2013 <br />�Otil l i f illf,fl, <br />PD U / C i'i <br />.... F i� <br />SAM % �jn ''_ <br />, °���vn� <br />47031 <br />1/41111111 1 <br />