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0 <br />0 <br />CF 21.1.2 2011 <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 />I am a Licensed Professional Engineer in the State of Colorado and a representative of Environmental Solutions, Inc., P. 0. Box 2996, Cheyenne Wyoming. The information <br />contained in this document was provided by Colowyo Coal L.P. Being familiar with the Colowyo operation and the coal permitting process in Colorado, the information contained <br />herein is reasonable and correct to the best of my experience. <br />Note: (d) impoundment volumes are estimated from pre- existing as -built surveys, and estimates of accumulated sediment. <br />T OMASCP E SO <br />P.E. No. 32257 <br />3rd Quarter 2011 <br />PDI " <br />PD2 <br />NTEPI <br />EP1 <br />EP2 <br />Inspection Date: <br />9/9/2011 <br />9/9/2011 <br />9/9/2011 <br />9/9/2011 <br />9/9/2011 <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 />Under <br />Construction <br />Not <br />Constructed <br />LJ <br />Does pond exhibit <br />structural weakness, <br />erosion, or other <br />hazardous conditions? <br />Lb1 <br />Monitoring Procedures <br />and Instrumentation <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 />7559 <br />7353 <br />DRY <br />NA <br />NA <br />Elevation & As -built <br />Depth Water Level <br />Ld1 <br />Existing Storage <br />Capacity <br />1.10 ac -ft. <br />1.49 ac -ft. <br />2.03 ac -ft. <br />ac -ft. <br />ac -ft. <br />LI <br />Maintenance Items <br />None <br />None <br />None <br />None <br />None <br />0 <br />0 <br />CF 21.1.2 2011 <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 />I am a Licensed Professional Engineer in the State of Colorado and a representative of Environmental Solutions, Inc., P. 0. Box 2996, Cheyenne Wyoming. The information <br />contained in this document was provided by Colowyo Coal L.P. Being familiar with the Colowyo operation and the coal permitting process in Colorado, the information contained <br />herein is reasonable and correct to the best of my experience. <br />Note: (d) impoundment volumes are estimated from pre- existing as -built surveys, and estimates of accumulated sediment. <br />T OMASCP E SO <br />P.E. No. 32257 <br />3rd Quarter 2011 <br />