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-III IIIIIIIIIIIII III <br />STATE OF COLORADO <br />MINED LAND RECLAMATION DIVISION p4.~o <br />Department of Natural Resources ,~~_• ~9~ <br />He <br />1313 Sherman St.. Room 215 <br />Denver, CO 60203 <br />303 866-3567 ~ ra ~e <br />FaX 303 832-8106 <br />Ray Romer, <br />Governor <br />Fretl R. 6anta, <br />Division Dvector <br />April 16, 1991 <br />Ms. Linda Limbach <br />Eastside Coal Company, Incorporated <br />P. 0. Box 161 <br />Silt, CO 81652 <br />RE: February, 1991 Semi-Annual Subsidence Report, File No. C-84-063 <br />Dear Ms. Limbach: <br />Mr. Jim Pendleton of our staff has reviewed the above referenced Subsidence <br />Report, and a copy of his comments is enclosed. Based on results of the <br />monitoring, we are requesting that Subsidence Monuments No. 2 and No. 8 be <br />replaced with more stable installations. <br />A minor revision addressing installation of the replacement monuments should <br />be submitted, and the new installation should be completed this summer, prior <br />to the next semi-annual monitoring. Both the original and replacement <br />monuments should be surveyed for the first two surveys following the <br />installation of the replacement monuments to correlate their locations. <br />Please contact me, if you have any questions. <br />Si <br />Da <br />Reclamation Specialist <br />D1M/gaw <br />Enclosure(s) <br />cc: Jim Pendleton, w/o enclosure <br />4930E <br />