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COLORADO WESTMORELAND INC. III IIIIIIIIIIIIIIII <br />999 <br />P. O. Box E, Paonia, Colorado B'1428 ~ 303-527-4'135 <br />February 1, 1985 <br />Mr. Robert Liddle RE~~111~~ <br />Colorado Mined Land Reclamation Division <br />423 Centennial Building ~~B 11 ~~`~ <br />1313 Sherman Street <br />Denver, CO 80203 MINED LAND RECLAMATIDN DIVISIQN <br />Colo. D¢pt of Natural Resources <br />Re: Annual Hydrology and Subsidence Report, <br />Dear Bob: <br />Attached is Colorado Westmoreland Inc,'s (CWI) Annual Hydrology and <br />Subsidence Report for 1984 in compliance with stipulation numbers 2, 3, and <br />4 attached to Permit C-038-83, <br />Impacts to the hydrologic regime of the present permit area and impacts <br />predicted to occur during 1985 are discussed, Data obtained from the <br />present hydrology monitoring program as well as proposed changes to the <br />program are also discussed. Hydrology data are presented in Appendices A <br />through F attached to the report, <br />The results of subsidence surveys conducted during 1984 and projected <br />subsidence impacts are presented, Subsidence data are in Appendix G, No <br />site specific data from high resolution subsidence monitoring grids emplaced <br />over retreat mining sections have been obtained to date, Retreat mining and <br />monitoring of the 12 North grid is scHeduled for March 1985, This data, as <br />well as hydrology data obtained during 1985 is expected to substantiate <br />C~iI's prediction of no impact to the hydrologic regime of the permit area <br />and provide more site specific subsidence angle of draw information, <br />Please review CWI's 1984 Annual Hydrology and Subsidence Report and <br />contact Jim Roberts or me should you have any questions. <br />Sincerely, <br /> <br />Kathleen G, Welt <br />f=nvironmental Specialist <br />Approval: ;f. <br />Ronald Stink <br />Vice President & General Manager <br />Attachment <br />cc: James Pendleton <br />CMLRD <br />• <br />SL105101A RV OF <br />WESTM ORELAN~ <br />Susan Mowry <br />CMLRD <br />Christopher K, Seglem <br />President, CWI <br />Matthew S, Sakurada <br />Manager of Engineering <br /> <br />Ji,m Roberts <br />~~'~l~,S>t x...J•?; ; 7J:vr. ~-~'i«4T=` . ~. e ~.c i7~'-^:~,....i"..:nen'{k.~n.w.X.4~''~`^~I.Z~`+~.~/4K~J~.nod+va,:~+r*S"R^ <br />