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l -. <br />III IIIIIIIIIIIIIIII <br />~~S. Department of Labor <br />Mark Rerr <br />Mine Manager <br />Rimrock Coal Company <br />1828 So. Marion St. <br />Denver, CO 80210 <br />Dear Mr. Kerr: <br />DocDate:12/11/2pp1 ``Exhibit 00- <br />Mine Salely and Health Administration ~~'"' `' <br />P.O Box 25367 / /~ n <br />Derner. Colorado 80225-0367 7 (~Il ~U N % - ' <br />... <br />Coal Mine Safety ~ Health /~,, !~Q '~ ;~ <br />District 9 ~ /U ~/`~~- <br />P~~N /, <br />Re: Rimrock Coal Company Mine <br />lD No. 05-04246 <br />Ground Control Plan <br />This is in response to the Rimrock Coal Company's revised ground control <br />plan received February 21, 1989, for the sub,Ject mine. The plan has been <br />reviewed and made part of the mine file. <br />Sincerely, <br />~`~/~ ~~ <br />John H. DeMichiei <br />yr District Manager <br />RPPROUED CMS & H MAC ~ `x'09 <br />