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<br />W Coknvyo Coal Company <br />P. <br />. <br />Q <br />0731 State High-.y 13 <br />? Meeker, CO 81641 <br />1 <br />..? <br /> T: 970.824-1578 <br />0 <br />r <br />o <br />x;44 .-gig 1 TO <br />Outfall Inspection - Ponds <br />1st Quarter 2010 <br />Year <br /> 001A 002A 003A 00 . 005A 006A` 007A 0109A d-69A 010A 011A 012A ° Other Other ' Other Other Other Other <br /> Streeter Work Area Gossard Gulch A Stoker Siding Rail Loop Prospect West Pit Section 16 East Taylor West Taylor Sec. 28 Wash Bay Ta?y or Pump Aeration West Overflow East Overflow Washbay <br /> Sediment Pond Pond LoadoutPond Pond Pond Pond Pond Po nd Pond Pond Pond Pond Pond Fld"I'ing Pond Pond <br />_ Pond Pond Sediment Stump <br />Inspection Date: ? <br /> 3/17@010 3117/2010 3117/2010 311712010 3/17/2010 311712010 3/17/2010 311712010 3117/2010 3/17/2010 3117/2010 3117/2010 311712010 311712010 311712010 3117/2010 311712010 3/17/2010 <br /> <br />Inspector: Ryan Pawlowski Ryan Pawlowski Ryan Pawlawsla Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowsld Ryan Pawlowski Ryan Pawlowski Ryan <br /> Pawlowski Rya Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski <br />Rule 4.05.9 (15) <br />u <br />Does pond exhibit No No No No No No No No No No No No No No No No No No <br />structural weakness, <br />erosion, or other <br />hazardous conditions? <br />jet <br />Monitoring Procedures Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Q <br />uarterly/ Quarterly/ <br />and Instrumentation Annual Annual Annual Annual Annual Annual Annual Annual Annual Annual Annual Annual Annual Annual <br />1 Annual Annual Annual Annual <br /> Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections 1 <br />Inspections Inspections Inspections Inspections Inspections <br />L <br />C I <br />Estimated at <br />Estimated at <br />Estimated at <br /> <br />Elevation 8 As-built <br />6583.0 ft. <br />7153.8 ft. <br />6389.3 ft. <br />6611.5 ft. <br />6325.0 ft. <br />6349.0 ft. <br />6743.9 ft. <br />6822.4 ft. 7745.0 ft. <br />6943.3 ft. 7460.8 ft. 7056.9 ft. <br />7203.0 ft. <br />6549.5 ft. <br />7204.0 ft. <br />dry <br />dry <br />7238 <br />4 ft <br /> <br />Depth Water Level Inaccessible dire Inaccessible due Inaccessible due . <br />. <br /> to snow to snow to snow <br /> <br />d I <br />Existing Storage 1.50 ac-ft. 7.28 ac-ft. 0.60 ac-ft. 1.46 ac-ft. 0.44 ac-ft. 0.45 ac-ft 2.47 ac-ft. 3.25 ac-ft. 0.78 ac-ft. 1.28 ac-ft. 1.46 ac-ft. 1.07 ac-ft. 6.26 acft 3.3 6 ac-ft. 0.88 <br /> ac-ft. 1.40 ac-ft. 1.70ac-ft 0.84 ac-ft. <br />Capacity <br />I <br /> 160 cubic yards <br />e I <br />Maintenance Items None None None None None removed in <br />January of 1st None None None None Nora None None None None None None None <br /> Quarter 2010. <br />I am a Licensed Professional Engineer in the State of Colorado and a representative of Environmental Solutions, Inc., P. 0. Box 2996, Cheyenne <br />Wyoming. The information contained in this document was provided by Colowyo Coal L. P. Being familiar with the Colowyo operation and the coal <br />permitting process in Colorado, the information contained 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 />12182006 <br />CF 21.1.2 <br />L I ?F ?i4 <br />.• <br />c? c.Pft•?s <br />°> <br />?%2257 z <br />• • ac <br />o•.? X441 <br />-0p 4/_9 <br />??sS/t7A1e1 Ev?.?f <br />32257