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<- <br />Mining Oflice 303 247-0118 <br />Exploration FRED M. JC11"IN 50 N, C.P.G. Residence 247-3560 <br />Engineering GEOLOGIST <br />P. O BOX 2162 <br />DURANGO, COLORADO 81301 , <br />April 3, 1985 ~,r„~~•: ,;,;,r ~M• <br />~ . ?J <br />K. - .... <br />- ~r,h' .+ <br />T0: National King Coal, Inc. ~- =• --: • = -~-~-~ ~•_ :_,~;;~ <br />SUBJECT: Quarterly Subsidence Monitoring, First Quarter 1985 <br />1) The first quarterly visual inspection for subsidence, King <br />Coal Mine, La Plata County, Colorado was made on March 28, 1985. <br />2) Survey stations will be monitored by Clifford Schmid, L.S. <br />during the 2nd quarter. <br />3) No new evidence of subsidence is apparent. <br />The surface area above both old and current workings was <br />inspected on March 28, 1985. The surface was inspected for ev- <br />idence of slump, subsidence, shearing, cracks in bedrock, veg- <br />etation damage and water infiltration. No evidence of subsi- <br />dence is apparent. The purpose of the inspection was to meet <br />requirements established by the Colorado Mined Land Reclamation <br />Division for quarterly monitoring of the surface for subsidence. <br />~2d M. Joh~on, C.P.G. <br />