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I <br /> <br />U.S. DEPARTMENT OF LABOR <br />MINE SAFETY AND HEALTH ADMINISTRATION <br />Mailing Address: Street Address: <br />P.O. Box 25367, DFC 730 Simms <br />Denver, Colorado 80225 Lakewood, Colorado <br />Coal Mine Safety and Health <br />District 9 <br />January 15, 1980 <br />Mr. Paul J. Osborne <br />Mine Foreman <br />Black Hawk Coal Company <br />P, 0. Box 1555 <br />Grand Junction, CO 81501 <br />I <br />1 <br />Dear Mr. Osborne: <br />ZM t "~ or <br />~a mil`, <br />real, lF~~T,y~ryt1 \,1~P <br />Q l~.!1 pI <br />~,~~ <br />.c~ ~<: <br />~~ <br />~f0 ~TATES_4~ ~r <br />Re: McClave Canyon Test Site No. 1 <br />I. D. No. 05-03013 <br />Roof Control Plan <br />The roof control plan submitted September 21, 1979, has been reviewed <br />again by MSHA personnel. The plan was disapproved by MSHA on <br />October 19, 1979. However, pursuant to a phone conversation between <br />Mr. Bill Anderson of your company and Steve Miller of MSHA on <br />January 14, 1980, the part of the plan dealing with full bolting <br />using resin grouted rods has been approved. This approval does not <br />cover conventional timbering or the staggered cut sequence. <br />Sincerely, <br /> <br />o n W, Bart n <br />istrict Manager <br />Enclosure <br /> <br />~1 ~„-~- -- <br />-- .. ; n <br />Illl, <br />~ - ~ <br /> <br />j;l GRa.~D I <br />Z••ra„a~ <br />~ <br />l JAN 181990 <br />n <br />jl S <br />COyoERDO <br /> <br /> <br /> <br /> <br /> <br />