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? , <br />j ~ 3 ~ ~ .ROCKY MOUNTAIN OEOTECHNICAL~ INC. <br />Achieving Harrrrony with Earth <br />February 10, 1983 <br />Mr. Dean R. Massey <br />Director - Government Affairs <br />Dorchester Coal Company <br />9350 E. Arapahoe, Suite 300 <br />Englewood, CO 80112 <br />S~TIBSIDENCE SURVEY. <br />SUBSIDENCE MONITORING AND SUBSIDENCE CONTROL. PLAN <br />D.~RCHESTER NO. 1 MINE <br />FLORENCE. COLORADO <br />Dear Dean: <br />• We have completed our review of existing data and prepared <br />the subsidence survey, subsidence monitoring and <br />subsidence control plan for the Dorchester No. 1 Aline. <br />Ten copies of the final report are enclosed for your review. <br />The report is intended to meet the minimum requirements of the <br />MLRD as set forth in Section 2.05.6 of the Mining Regulations. <br />Respectfully submitted, <br />ROCK N N EOT BNICAL <br />Richar Greenwood <br />Projec Manager <br />L. My <br />Partner in Charge <br />RJG/msl Job No. 1800/54C <br />• <br />The Railroad Station • 555 E. Pikes Peak Avenue. Suite 107 • Colorado Springs. Colorado 80903 • [303) 634-7999 <br />