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Colowyo Coal Company <br />p-d. <br />5731 State Highway 13 ?Meeker, CO 81641 Outfall Insp6ction - Ponds <br />T: 970.824.1578 <br />O M'ff'n Dninf <br />3rd Quarter 2010 <br />Year <br />?,-- <br />v , h <br />001A. <br />662A <br />003A <br />004A <br />005A <br />006A ' <br />067A <br />008A <br />ilb9A <br />010A <br />0111A <br /> <br />012A` ' <br /> <br />- 0 er <br /> <br />her <br /> <br />a <br /> <br />g. er` <br /> <br />,r b er <br /> <br />er <br />is N <br /> <br />° " IT .3 " <br />,Streeter , .' <br />Work Area <br />Gossard <br />Gutch A <br />Stoker Sidra <br />9 <br />Rad100' <br />P <br />'Pros act <br />P <br />West pit <br />Sei;tion 1fi, <br />ast 'Taylor <br />West4a for <br />Sec. 28 <br />Wash a <br />r Pump <br /> <br />West OJerf <br />low <br /> <br /> <br />ast Overflow <br /> <br /> <br />,;; Washbay <br />Ey <br />?,. Sedim n ' .. <br />e t fSOnd ;. <br />-,POnd <br />l o Boat orid <br />Pond'' <br />-Pond ?? <br />Po d <br />Fond - <br />Po,gd- <br />Po d <br />° <br /> <br />.: <br />Po ad " <br />P <br /> <br /> <br />Ond <br /> <br /> <br /> <br />oad <br /> <br /> <br /> <br />gd <br /> <br /> <br /> <br />Pond <br /> <br />x <br /> <br /> <br /> <br />n <br /> <br /> <br /> <br />p <br />? " , t .,? <br /> <br /> <br /> <br />. U <br />Inspection Date: 9/14/2010 9114/2010 9/1412010 9/1412010 9/14/2010 9/14/2010 9/14/2010 9114/2010 9/1412010 9/1412010 9/14/2010 9/14/2010 9/14/2010 911 /2010 9/1412010 9/14/2010 9/14/2010 9/14/2010 <br />Inspector: Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan <br /> Pawlowski Rya Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski Ryan Pawlowski <br />Rule 4.05.9 f151 <br /> <br />1a I <br />` <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 />f I I <br /> Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ Qu artedy/ Quarterly/ Quarterly/ Quarterly/ Quarterly/ <br />Monitoring Procedures <br />and Instrumentation Annual Annual Annual Annual Annual Annual Annual Annual Annual Annual Annual Annual Annual A nnual Annual Annual Annual Annual <br /> Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Inspections Ins 'actions Inspections Inspections Inspe <br />ctions Inspections <br />IC <br />Elevation & As-built 6583.0 ft. 7150.0 ft. 6387.0 ft. 6608.0 ft. 6324.4 ft. 6349.0 ft. 6743.0 ft. 6822.0 ft. 7744.3 ft. 6942.5 ft. 7466.0 ft. 7056.9 ft. 7203.0 ft. 6 9.5 ft. 7204.0 ft. dry dry 7238.4 <br /> ft. <br />Depth Water Level <br /> <br /> <br />d I I <br />I <br />Existing Storage 1.48 ac-ft. 7.25 ac-ft. 0.56 ac-ft. 4.88 ac-ft. 0.43 ac-ft. 0.29 ac-ft. 2.45 ac-ft. 3.24 ac-ft. 0.7,6 ac-ft. 1.24 ac-ft. 1.44 ac-ft. 1.07 ac-ft. 6.25 ac-ft. 3.3. t ac-ft. 0.87 <br /> ac-ft. 1.40 ac-ft. 1.70ac-ft. 0.80 ac-ft. <br />Capacity <br />1 <br />i <br />i <br /> <br />2340 cubic 1 <br /> yards of Scheduled to <br /> None None None material None be dredged in <br />None <br />None <br />None <br />None <br />None <br />None <br />None <br />one <br />None <br />None <br />None <br />None <br />Maintenance Items dredged from summer/fall of <br /> pond during 2010. <br /> Fall 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 />CF 21.1.2 <br />,,c?PDO C ?CF <br />??, ? • ?c- Pep% <br />U <br />,12257 iz7 t <br />Jy.&Sfl1NAL', a'%O <br />32257