REP07986

• Permit No: C1981019
• IBM Index Class Name: Report
• Doc Date: 12/11/2001
• Doc Name: 1997 ARR ARR EXHIBIT 1 COLOWYO COAL CO 02-10-98 COLOWYO MINE
• Permit Index Doc Type: ANNUAL RECLAMATION REPORT
• Media Type: D
• Archive: No

Colowyo Coal Company 02/11/98
COLOWYO MINE
Station: LGSC
Sample Range: Through 12!31!97
S[d Coef Maximus Minimum Max Value Min Value k of
Mean Oev Var Range Value Value Found Found Samp
Flow Ra[e (cfs) 4.580 5.373 117 44.050 44.050 0.000 04/29/86 01/14/87 179
Colowyo Coal Company
COLOWYO MINE
Station: LTC
Sample Range: Through 12/31/97
Std Coef Maximum Minimum Max Value Min Value # of
Mean Dev Var Range Value Value Found Found Samp
Flow Rate (cfs) 0.331 0.842 255 6.300 6.300 0.000 04/29/86 08/07/85 147
Col ouyo Coal Company
COLOWYO MINE
Station: NUGSC
Sample Range: Through 12/31/97
Std Coef Maximum Minimum Max Value Min Value k of
Mean Dev Var Range Value Value Found Found Samp
Flow Rate (cfs) 2.083 2.449 118 15.200 15.400 0.200 05/27/93 03/18/96 62