REP42789

• Permit No: C1981019
• IBM Index Class Name: Report
• Doc Date: 3/29/2002
• Doc Name: 2001 AHR & ARR Exhibits 4,5,9,10
• From: Colowyo Coal Company
• To: DMG
• Annual Report Year: 2001
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

I COLOWYO MINE Page 1
Station: GOSSARD WELL
Sample Range: Through 12/31/01
Sample Depth
Date to SWL Elev SWL
ft fC MSL
________ ________ ________
10/19/83 22.70 6327.39
10/27/83 22.70 6327.39
12/12/83 23.50 6326.59
03/14/84 23.50 6326.59
06/15/84 21.20 6328.89
08/13/84 21.40 6328.69
09/05/89 22.00 6328.09
SO/O1/B4 '22.00 6328.09
03/29/85 22.00 6328.09
06/29/85 22.90 6327.69
07/22/85 22.80 6327.29
08/20/85 22.00 6328.09
09/18/85 N N
09/19/85 23.00 6327.09
10/16/85 22.90 632].19
10/30/85 N N
03/27/86 22.60 6327.49
06/19/86 22.50 6327.59
07/24/86 22.50 632].59
08/05/86 22.60 6327.49
09/10/86 23.30 6326.79
10/13/86 23.30 6326.]9
03/31/0] 24.00 6326.09
06/19/8] 24.40 6325.69
08/18/87 24.50 6325.59
10/21/87 23.30 6326.79
03/31/88 22.90 632].19
06/27/88 23.00 6327.09
OB/15/BB 24.00 6326.09
10/12/88 24.00 6326.09
03/30/89 23.10 6326.99
08/01/89 24.00 6326.09
10/09/89 24.00 6326.09
12/28/89 24.00 6326.09
03/27/90 23.00 6327.09
05/30/90 23.50 6326.59
07/19/90 23.00 632].09
11/19/90 24.00 6326.09
03/28/91 25.00 6325.09
05/17/91 22.50 fi32].59
08/19/91 23.00 6327.09
10/17/91 23.20 6326.89
02/12/92 21.80 fi328.29
05/14/92 22.50 6327.59
08/19/92 23.00 6327.09
11/24/92 18.40 6331.69
03/13/93 21.90 6328.19
06/01/93 22.00 6328.09
08/23/93 22.90 6327.19
Note: N .> No measurement, D => Dry