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Colowyo Coal Company <br />573 State Highway 13 <br />Meeker, CO 81641 <br />T: 970- 824 -1573 <br />Stockpond Inspections <br />East Pit <br />4th Quarter 2011 <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 />Q`AO0 0111111140 I_ / C <br />4 <br />* ., i t. Pe" uN 1. <br />V i • i C <br />32257 t <br />� � 1 3 . ! i/ c� � <br />•r, R <br />P.E. No. 32257 <br />PD1 <br />PD2 <br />NTEPI <br />: ' 7 <br />- EP7 <br />Inspection Date. <br />11/30/2011 <br />11/30/2011 <br />11/30/2011 <br />11/30/2011 <br />11/30/2011 <br />Inspector <br />Chip Brown <br />Chip Brown <br />Chip Brown <br />Chip Brown <br />Chip Brown <br />Rule 4.05.9 (151 <br />No <br />No <br />No <br />No <br />Not <br />Constructed <br />(a1 <br />Does pond exhibit <br />structural weakness, <br />erosion, or other <br />hazardous conditions? <br />(b 1 <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 />Quarterly/ <br />Annual <br />Inspections <br />Monitoring Procedures <br />and Instrumentation <br />(c1 <br />7352.5 <br />7557.5 <br />DRY <br />DRY <br />NA <br />Elevation & As -built <br />Depth Water Level <br />(d1 <br />1.09 ac - ft. <br />1 49 ac - ft. <br />2 02 ac - ft. <br />1.29 ac - ft. <br />ac - ft. <br />Existing Storage <br />Capacity <br />(e► <br />None <br />None <br />None <br />None <br />None <br />Maintenance Items <br />Colowyo Coal Company <br />573 State Highway 13 <br />Meeker, CO 81641 <br />T: 970- 824 -1573 <br />Stockpond Inspections <br />East Pit <br />4th Quarter 2011 <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 />Q`AO0 0111111140 I_ / C <br />4 <br />* ., i t. Pe" uN 1. <br />V i • i C <br />32257 t <br />� � 1 3 . ! i/ c� � <br />•r, R <br />P.E. No. 32257 <br />