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n. <br /> <br />III IIIIII IIIIIIIIII <br />999 <br />MINING & SUBSIDENCE ENGINEERING, INC. <br />~- <br />Mining & Subsidence Engineering, Inc. <br />2837 Grand Falls Cir, No. 7 <br />Grand Junction, CO 81501 <br />May 17, 1986 <br />Mr. James Pendleton <br />Colorado Mined Land Reclamation Board <br />423 Centennial Building <br />1313 Sherman St <br />Denver, CO 80203 <br />-,., _, . <br />;. _ <br />J.Jn! 19 <br />x985 <br />Subject: Proposed Subsidence Analysis Method <br />Multiple Seam Mining Areas, Empire Energy's Eagle fJline No. 6 <br />Dear Jim: <br />Empire Energy has retained Mining & Subsidence Engineering, Inc., to prepare <br />the subsidence portion of the permit for their Mine No. 6 at the Eagle Mlne complex near <br />Craig. They indicated that there were some concerns on your part with respect to the <br />subsidence effects resulting from the proposed multiple seam mining. The Mine No. 6 <br />locally undermines previously mined areas in the overlying Mine No. 5. The No. 6 mine <br />undermines No. 5 Mine longwall panels and No. 5 Mine room-and-pillar panels. These <br />room-and-pillar panels have not been nor are there any plans to retreat mine these pillar <br />sections. <br />As you suggested, Empire Energy has requested that I submit to you, for your <br />comments, a brief summary of the proposed methodology for detel•mining the effects of <br />subsidence resulting from the No. 6 Mine. <br />502 MAIN ST. • P. O. BOX 746 • CARBONDALE, COLORADO 61823 • TELEPhIONE (303) 963-0115 <br />