PERMFILE61774

• Permit No: C1981033
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 06 PREVIOUS UNDERGROUND MINING OPERATIONS
• Media Type: D
• Archive: No

COLORADO CO?Z :1INE I:;?Q;;.`t^,T iON
-' PRIMARY MIN. NAME: SomerseC
OPERATOR, PEP.IOD WORKED: U.S. Steel Corp., 1903-1976
SECONDARY MLiE NA.~ (1): -
OPERATOR, ?ERLOD WORKED: ~ ~ ._
SECOIDARY MINE NAME (2): -~- - -
0°..BATOR, PERICD WORKED: _ _ __ ..
GEOGRAPHY
COAL REGI09: .Uinta COAL FIELD: Somerset
A4EA: COUNTY: Gunnison
SEC., iWP., RGE,: S/2 See 8 T135 B90W
HIRE IIiDEE NURSER: 152 HAP INDEX NU.`ffiER: NW-27
HI*y° TY?E: Underground-elope PORTAL ELEVATION (ft): 6,115
GEOLOGIC INFORMATION
COAi.-BEA32NG BDCK UNIT:
GEOLOGIC A.rw:
COAL ' Z.'S='
COAL Br'- 5A?f-:
COAL .dSCi1=55 (fc):
STRAT ~'"RA_°3IC POSITION:
BEDDL`IG A_'^_TCDE (degrees):
OYEHBURrEN TEICxNESS (fL):
AN; yYSIS
APP'A3-z'RT C.,AL RANX: Bituminous
~ HEAT 9ALIIE, AS-BECEIVID (Btu/Lb): 12,755
PBO~lSL: ,1'4AI.YSlS (Coal Aaalgsis-Dry. Moist. and Btu-As Reev'd):
Ash (:): 6.1-11.5 Moisture (Z): 5.4-6,4
Vn}atile Hatter (:): 39.8-39.5
- Pized Carbon (:): 51.0-54.4 Sulfur (S): 0.5-0.7
COKLVG CDAL DATA:

FREE S.T"e.S.ING INDEX (FSI):
METHANE DATA:
PRODUCTION (short tons):
Differentiated:
Total:
RECOVERY FACTOR (Z):
DEPLETION, TOTAL (short tons)
BEFERENCES:
Bowie Hember, Hesaverde Gp
Upper Cretaceous
Undifferentiated
SomerseC B, C
2.0-9.0
N77W 3-6NE
z,ooo (2x)
Reported coking. FSI varies vitb bed
from 2.5-4..0
4.0
Avg. methane emission: 1,692,000
cu ft/day
PRODUCTICN AND DEPLETION
T 135 R9DW - Gunnison Co -
Soverset 9 Bed 12,784,567;
Somerset C Bed 852,304;
T135 R91W - Delta Cu - Somerset B Bed
6,392,284; Somerset C Bed 426,152
20,455,307
50
40,410,614
GENERAL INFORMATION
Dawson and Murray (1973); Jones and
Murray (1978); Landis (1959);
Lee (1912); Toenges and others (1952)
BEMARRS:
Burned coal in about half [he
township. Floor is bone coal, clay.
Roof is coal.