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r ~' ~`'i; <br />Imo'^^ ~ <br />f.' ~ J <br />~{E 17',0 ~, <br />JPN ~ ~y <br />~; ~ <br />. ~~~ J /~r <br />January 15, 1980 <br />Coai Mine Safety and Health <br />District 9 <br />Hr. Paul J. Osborne <br />Mine Foreman <br />Black Hawk Coal Company <br />P. 0. Box 1555 <br />brand Junction, CO 81501 <br />Dear Mr. Osborne: <br />. ~ j~i- <br /> <br />Re: McClave Canyon Test 51te No. 1 <br />I. D. No. OS-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. Ho~vever, pursuant to a phone conversation between <br />Mr. Bill Anderson of your company and Steve Miller of MSHA on <br />January 14, 1980, the Aart 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 />o n Y1. Barton <br />District Manager <br />Enclosure <br />~y; 11,,E ~. <br />~'JWB:J.,S.Miller:mh <br />.. _ .bP.V ~. Y^ . <br />Delta _ ~:_ <br />DTSC ~ '~ - <br />-=~,'" ~: <br />St. Dept of Mines - -~- <br />