PERMFILE50229

• Permit No: C1981013
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 06 HYDROLOGY INFORMATION
• Media Type: D
• Archive: No

Table 5
Comparison of Areal Extent of
Mining Projections: 1980 and 1994
•
.~
Areal Parameter 1980 1994
Existing
Perimeter 8700 ft 35000 ft
Area of Mine 3.4 x 106 ft2 3.99 x 10' ft2
Exposed Roof 2.2 x 106 ft'- 2.8 x 10' ft2
(65% extraction) (1.6 x 10' ®60% and
2.4x10'Q75%)
Permit Term
Perimeter NA 4.8 x 10° ft
Area of Mine NA 8.45 x 10' ft2
Exposed Roof NA 6.1 x 10' ft2
(1.6 x 10' ~ 60% and
6.9x 10'Q75%)
Life-of-Mine
Perimeter 4.6 x 10° ft 5.2 x 10' ft
Area of Mine 1.7 x 108 ft2 1.21 x 108 ft2
Exposed Roof 1.1 x 108 ft2 8.9 x 10' ft2
(1.6 x 10' 60% and
1 x 108 Q 75%)
18