Laserfiche WebLink
III IIIIIIIIIIIII III <br />999 <br />DEPARTMENT OF NATURAL RESOURCES <br />Davitl H. Getches. E><ecutrve Director <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTO N, Director <br />Richartl D. Lamm <br />Governor <br />MEMORANDUM <br />January 1986 <br />To: Sue Mowry <br />FROM: Jim Pendleton _. <br />RE: Orchard Valley- Mine <br />\ V~~'~° <br />September, 1985 Semi-Annual Subsidence Report <br />(Permit C-81-038) <br />Having reviewed Colorado Westmoreland Ines semi-annual subsidence monitoring <br />report for the Orchard Valley underground coal mine, I find it to be <br />acceptably prepared. The report contains a summary and analysis of the <br />wide-spaced subsidence monument grid survey data. <br />The operator included a request to reduce monument monitoring and installation <br />requirements for the wide-spaced monument grid. The operator sites cessation <br />of observed subsidence in a number of older monuments and slowed rates of <br />mining in support of their request. I find the operator's request to be <br />reasonable. The changes will not affect the success of the subsidence <br />monitoring program. Therefore, I recommend that you approve the operator's <br />request. <br />cc: Bob Liddle <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />