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U. S. Department of Labor <br /> <br />July 16, 1980 <br />Mr. John M. Walters <br />Field dining Engineer <br />Sheridan Enterprises <br />9745 East Hampden Avenue <br />No. 350 <br />Denver, Colorado 80231 <br />Pdlne Safety and Heahh Administra lion <br />P O Box 253fi7 <br />Uenver. Colorado 80225 <br />Coal Mine Safety and Health <br />District 9 <br />O <br />~~~ <br />D ~-~~ ~,'7 t~.~rry ~~ <br />r <br />.IUL. 3.~ i:~20 <br />Re: McClane Canyon Test Site No. 1 <br />I. D. No. 05-03013 <br />I <br />Roof Control Plans <br />Dear Mr. Walters: <br />The roof control plan for the McClane Canyon Test Site No. 1 (I. D. No. 05-03013) <br />• has been reviewed by MSHA and is approved for six months. However, if conditions <br />warrant, it may be changed at any time. <br />Since at the present time, no coal is being produced at the Munger Canyon Test <br />Site No. 1 (I. D. No. 05-03119) and several roof falls have occurred along with <br />additional support (posts) being installed in several areas, it will be <br />necessary to send a roof control specialist to determine the adequacy of the <br />plan. <br />Sincerely, <br />~i'r1t~ ~~~`~~ <br />~ John W. Barton <br />District Manager <br />c <br /> <br />