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• iii iiiiiiiiiiiu-iii <br />999 <br />,r„ ~~ <br />CYC ~ aPRl ~ 19g~, <br />P. IN..II''[''q L,I;IU REf,LAMATIpN OIVISIpN <br />Colorado Yampa Coal Company I 29588 Routt County Road #27, Oak Creek. CO 804Sy'}'(`303Q~'~IggDQpSOUIfeS <br />April 10, 1985 <br />Mr. Dan Mathews <br />Colorado Mined Land Reclamation Division <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />Re: <br />rol Nlan - <br />Alteration to Surface Drai <br />Dear Mr. Mathews: <br />This letter is to inform yo <br />Company plans on conducting cert <br />surface drainage control plan ap <br />modifications will take place on <br />dragline pit, on areas that have <br />through as the 8050 pit advances <br />consist of temporary divisions a <br />These minor alterations are nece <br />active pit in order to maintain <br />recoverability of the coal seam. <br />to be necessary for periods of t <br />verse environmental impacts whit <br />because all of the activities wi <br />that have had topsoil previously <br />,and your agency that Colorado Yampa Coal <br />tin minor and temporary alterations to the <br />,roved under Permit 79-177. All minor <br />the highwall (south side) of the 8050 <br />had topsoil removed and which will be mined <br />to the south. The modifications will <br />td temporary confinement of surface water. <br />~sary to restrict water from entering the <br />t safe working area and ensure maximum <br />The minor alterations are not anticipated <br />me beyond seven days. There is no ad- <br />t will occur due to these minor alterations <br />1 take place ahead of the active pit areas <br />removed. All temporary divisions will be <br />made well away from topsoil stockpiles or reclaimed areas that have had <br />topsoil replaced and all surface drainage associated with these minor <br />alterations will pass through sedimentation pond A prior to being released <br />off site. <br />If you have any questions concerning this matter, please contact me <br />at the above letterhead address. <br />Sincerely, <br />Richard Hughes <br />Environmental Specialist <br />RH/kmk <br />cc: G. Consalus M. Kondelis F. Milliken <br />R. LiConti L. Damrau <br />