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Colowyo Coal Company <br />5731 State Highway 13 <br />Meeker, CO 81641 <br />T 970 - 824 -1573 <br />Stockpond Inspections <br />East Pit <br />1st Quarter 2012 <br />I am a Licensed Professional Engineer in the State of Colorado and a representative of Environmental Solutions, Inc., P. 0. Box <br />2996, Cheyenne Wyoming The information contained in this document was provided by Colowyo Coal L.P. Being familiar with <br />the Colowyo operation and the coal permitting process in Colorado, the information contained herein is reasonable and correct to <br />the best of my experience. <br />Note (d) impoundment volumes are estimated from pre - existing as -built surveys, and estimates of accumulated sediment <br />CF 21 1 2 2011 <br />• <br />.,. i ~' 32257 • <br />o <br />¢tall Zt c� $ <br />S /ONAL t <br />i!.� 1 y i t <br />H• • •1 <br />P.E. No. 32257 <br />PDI P . <br />PD2 <br />NTEP1, <br />4 EP,! <br />,EP 2 " <br />Inspection Date <br />3/12/2012 <br />3/12/2012 <br />3/12/2012 <br />3/12/2012 <br />3/12/2012 <br />Inspector <br />Chip Brown <br />Chip Brown <br />Chip Brown <br />Chip Brown <br />Chip Brown <br />Rule 4.05.9 (152 <br />No <br />No <br />No <br />No <br />Not <br />Constructed <br />La} <br />Does pond exhibit <br />structural weakness, <br />erosion, or other <br />hazardous conditions? <br />(bl <br />Quarterly/ <br />Annual <br />Inspections <br />Quarterly/ <br />Annual <br />Inspections <br />Quarterly/ <br />Annual <br />Inspections <br />Quarterly/ <br />Annual <br />Inspections <br />NA <br />Monitoring Procedures <br />and Instrumentation <br />L c! <br />7352 5 ft <br />current level <br />7558 O ft <br />current level <br />7382.5 ft <br />current level <br />7374.5 ft <br />current level <br />NA <br />Elevation & As - built <br />Depth Water Level <br />L■ <br />1.09 ac - ft. <br />1 49 ac - ft. <br />2.02 ac - ft <br />1.29 ac - ft. <br />NA <br />Existing Storage <br />Capacity <br />L?1 <br />Maintenance Items <br />None <br />None <br />None <br />None <br />None <br />Colowyo Coal Company <br />5731 State Highway 13 <br />Meeker, CO 81641 <br />T 970 - 824 -1573 <br />Stockpond Inspections <br />East Pit <br />1st Quarter 2012 <br />I am a Licensed Professional Engineer in the State of Colorado and a representative of Environmental Solutions, Inc., P. 0. Box <br />2996, Cheyenne Wyoming The information contained in this document was provided by Colowyo Coal L.P. Being familiar with <br />the Colowyo operation and the coal permitting process in Colorado, the information contained herein is reasonable and correct to <br />the best of my experience. <br />Note (d) impoundment volumes are estimated from pre - existing as -built surveys, and estimates of accumulated sediment <br />CF 21 1 2 2011 <br />• <br />.,. i ~' 32257 • <br />o <br />¢tall Zt c� $ <br />S /ONAL t <br />i!.� 1 y i t <br />H• • •1 <br />P.E. No. 32257 <br />