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• blue <br />ribbon <br />coal <br />company <br />Susan Mowry, <br />Reclamation Specialist <br />Colorado Mined Land Reclamation <br />1313 Sherman Street, Room 423 <br />Denver, CO 80203-2273 <br />~~~ ~~~~~~~~~~~~~ ~~~ Pe ~~ 1 C \ez~n c~cruT- <br />blue ribbon coal company <br />p.o. box 58 <br />delta, Colorado 81416 <br />(3031 874-7561 <br />October 11, 1985 <br />Re: File # C-047-81,Quarterly bench stability monitoring <br />Dear Susan: <br />Amid confusing bench stability monitoring requirements the following information <br />is being submitted a;.a quarterly report: <br />Point 7/1/85 8/29/85 9/17/85 Total Change <br />S-1 6401.38 6401.32 6401.28 -0.10 <br />S-2 6396.23 6396.20 6396.16 -0.07 <br />S-3 6385.83 6385.80 6385.75 -0.08 <br />S-4 6383.45* 6383.42 6383.33 -0.12 <br />TS-5 6473.47 6473.43 6473.42 -0.05 <br />TS-6 6476.66 6476.58 6476.54 -0.12 <br />TS-7 6476.52 6476.45 6476.40 -0.12 <br />TS-8 6475.38 6475.30 6475.21 -0.17 <br />*Mis-calculated for the initial report 7/1/85 <br />The 9/17/85 survey was taken just prior to the removal of TS-5 thru TS-8 when <br />the bench cover work started. These temporary stability monuments will not be <br />replaced until the completion of the bench cover phase of the bench stabilization. <br />If there are any questions, let me know. <br />Yours truly, <br />tu/ .~ l~/~,~c <br />Larry M. Reschke, <br />Mine Engineer <br />cc: Jim Stover, Powderhorn Coal Company <br />v~~;~q~~ <br />~~ <br />OCS ~.15 `-~' <br />D <br />RECLAMA lON pIVISiOr1 <br />