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J <br />• • III IIIIIIIIIIIIIIII <br />STATE OF COLOIZ~~~ 99 <br />Roy Romer, Gove~ <br />DEPARTMENT OF NATURAL RESOURCES <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON, Director <br />August 10, 1987 <br />Ms. Kathleen G. Welt <br />Environmental Specialist <br />Orchard Ya11ey Mine <br />P. 0: Box 1299 <br />Paonia, Colorado 81428 <br />Re: Semi-Annual Subsidence Monitoring Report <br />Dear Ms. Welt: <br />The Colorado Mined Land Reclamation Division acknowledges receipt of Colorado <br />Westmoreland Inc.'s Semi-Annual Subsidence Report. The survey data appears <br />clearly and accurately tablulated within the report. Jim Miller, the Mine <br />Engineer and author of the report's cover letter, states in the cover letter <br />that no subsidence has occurred during this period of observation, Mr, Jim <br />Pendleton's examination of the data report determined that subsidence has <br />continued to develop above the panels off the 5th North submains off the 8th <br />East mains. Yertical settlement of up to 0.35 feet and associated vertical <br />rise of up to 0,59 feet were documented. This sort of cantilever adjustment <br />is not unusual: <br />Sincereiy, <br />Catherine W, Beget <br />Reclamation Specialist <br />CWB/lal <br />1685E <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. (303) 868-3567 <br />L <br />