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REV92974
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Entry Properties
Last modified
8/25/2016 3:14:20 AM
Creation date
11/21/2007 11:26:07 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Revision
Doc Name
DECISION RECORD RATIONALE COAL LEASE APPLICAITON COC54558 ENVIRONMENTAL ANALYSIS U-93-24
Type & Sequence
PR5
Media Type
D
Archive
No
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Maximum J:coaomic ]recovery Report <br />Jumbo Mountain Tract <br />Pi. 3 <br />PRODUCTION LEVEL -The andcipated level or' producdon will be accomplished with 3 ~~ <br />oondnuotu miner units, developing on as average of >ir2 unit dtifta per weer and 1 Lnngwall unit <br />producing on an average unit drifts per week. w(~ p ~ <br />Tdrn~ ~.-Pf"d" p t9a- <br />MANPOWER -Manpower to mice coal. provide ty and maintenance support, and surface <br />and underground staff should total 120 persons. 'work four would tffectively produce coal <br />at the 3:'S-miwon tone per year rate. . <br />~•~ s~ ~ ~ <br />SURFACE FACILITIES - IiMCC a successful bidder very fti now surface fecllltip would <br />be added. An access mad and tiladon portal oa the lease may be required with their <br />pmbable location being in th co.*»er of the tract. About acres cold be disbubed. The <br />current surface coal handling 'des of MCC's West Elk muu: would sern the needs of the <br />Jumbo Mountain tract„ also. <br />TRANSPORTATION - If MCC is the successful bidder the current aansportasion infiastrttcdr:e <br />at the West Elk mine would serve the mining ntxds of the Ftoderal tract. There is a ooaveyor <br />belt system in place froth the train loadout tipple to the current working area undergrotutd. This <br />system could be extended to working face in the jumbo Mouataia tract. <br />33ST'IIutATED RECOVERY -Recovery should approximate the cvrrrnt recovery of the lottgwall <br />block demonstrated in the adjacent federal lease and would apply to the mineable cal reserves <br />in the Jumbo Mountain tract. T9rat recovery has been 66.9%. It should be noted that tkusm an <br />mineable seserva that could not be incorporated inW the longwdl mineable reserves due to <br />geometric layout of the lortgvvall blocks having W miss odd shaped arcs of the minable <br />reserve. This inconvenience does not render the longwall mining tttethad a poor eheioe. The <br />actual recovery of the total in-plea reserves is estimated to be 37.996, which apptoaimaw the <br />recovery of in-plan reaervas for B-seam reaerva as demoosaatod by actual ooatiaaous minim <br />methods used in the vicinity of the Jumbo Mountain tract. <br />POTENITAL MARI{E!'S -The ct~,nt bleat Elk mine supplies cal for tdectrk power <br />generation ~3e~eAd. Coal contract demands sre expected to increase fmm 1.7 <br />to 4.0 million tons per year from 1993 to 1995 with aggressive marbet sales being Planned by <br />MCC ntanagerrtatt, especially in mid•western U.S. power generation. <br />~7CI14tLT1Et E?'~ONOMIC RFrOVERY D$TERMIPIATION <br />It has ban determined by HLM mining engineers aced geologists that Maximum Rcorromic <br />Recovery (MER) of this Fedtsal Ir9.' tract cart be achieved by underground mining usrng the <br />longwall method of mining as descnbed is this report. <br /> <br />
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