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y~ <br />y: <br />RAYE & ASSOCIATES <br />. Progress Within Environmental Tolerances <br />September 7, 1979 <br />n, o-,r• <br />~~.~,.s~,', ~~ 60,4..0 <br />Mr. Hamlett J. Barry <br />Director SEP 11 1979 <br />Mined Land Reclamation Division <br />Colorado Department of Natural Resources <br />1313 Sherman Street MiNEO LAID RECLA~'1AT10~•1 <br />Denver, CO 80203 Cole. Dept. of Natural iiC 56'Ji%e= <br />RE: The Rockcastle Company <br />Grassy Creek Coal Mine #1 <br />Your file #78-45 <br />Dear Mr. Barry: <br />The purpose of this letter is to request approval of a technical revision <br />to permit #78-45. This request encompasses the following: <br />• (1) adjustment to the mining sequence, and <br />(2) use of the old office area as a water truck loading point. <br />Mining Sequence <br />The Rockcastle Company has determined that it will be easier to haul coal <br />from pits B and D during the severe winter months than from pits A and C. <br />Therefore, the Rockcastle Company request a revision in its mining sequence <br />so that it can mine coal from pits Band D this winter. The proposed mining <br />schedule is as follows: <br />Nearing or at completion <br />3rd Quarter 1979 <br />4th Quarter 1979 <br />1st <br />2nd <br />3rd <br />4th <br />1st <br />2nd <br />3rd <br />4th <br />1st <br />2nd <br />Quarter 1980 <br />Quarter 1980 <br />Quarter 1980 <br />Quarter 1980 <br />Quarter 1981 <br />Quarter 1981 <br />Quarter 1981 <br />Quarter 1981 <br />Quarter 1982 <br />Quarter 1982 <br />• 3rd Quarter 1982 <br />4th Quarter 1982 <br />Cuts A1, A2, B1 <br />Cuts A3, A4, B2, B3 <br />Cuts A5, A6, 64 and strip <br />topsoil from D1 and D2 ~ ~~{ <br />Cuts B5, D1 ~C !1 ~~ ~7 <br />Cuts D2, C1, C2 <br />Cuts D3, C3, C4 <br />Cuts D4, C5 <br />Cuts D5, E1, R1 <br />Cuts D6, E2, R1 <br />Cuts E3, R1 <br />Cuts E4, R1 <br />Cuts E5, S1 <br />Cuts E6, S1 <br />Cuts T1 <br />Cut T1 <br />976 WELCH COURT • GOLDEN, COLORADO 60401 ~303~ 234-9855 <br />