2025-06-30_PERMIT FILE - C1981019A

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 6/30/2025
• Doc Name: Volume 01 Tables
• Section_Exhibit Name: Volume 01 Tables 2.03-1 Thru 4.15-7
• Media Type: D
• Archive: Yes

TABLES
Table 2.04.7 -8 Surface Water Hydrology for Basins Near the Colowyo Coal Mine Permit
Area
1. Incomplete record for month
2 Values are both max. and min. for month max
min
Tables 20 Revision Date: 6/12/12
Revision No.: RN -06
Taylor Creek Surface Water Flow Measurements
Mean Monthly Discharge in Cubic Feet/Sec
Month Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec
Year
1974
1975 0.3' 0.4' 0.021 0.16 0.003 0.0
1976 0.0 0.15 0.18 0.0 0.001 0.72 0.091 0.025 0.009 0.00 0.0 0.0
9
1977 0.0 0.0 0.006 0.002 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1978 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.01 0.0 0.0
4
1979 0.0 0.0 0.0 0.0 0.51 0.45 0.19 0.043 0.016 0.06 0.008 0.004
9
1980 0.052 1.203 0.231 0.040 2.80 1.987 0.565 0.139 0.118 0.15 0.14 0.237
1981 0.002 0.005 0.013 0.022 0.060 0.017 0.008 0.0 0.001
Maximum and Minimum Flow Values
1974
1975 0.03 0.03 0.02 0.0
0.02 0.0 0.0
1976 0.0 3_0 0.08 0.0 0.02 0.11 0.12 0.06 0.04 0.02 0.0 0.0
0.0 0.0 0.0 0.02 0.05 0.01 0.0 0.0
1977 0.0 0.01 0.03 0.01 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
0.0 0.0 0.0
1978 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.10 0.01 0.0
0.0 0.0
1979 0.0 0.0 0.0 0.0 1_8 1_1 0_3 0.07 0.02 0.13 0.04 0.01
0.0 0.31 0.07 0.03 0.01 0.05 0.0 0.0
1980 0.16 18.00 0.50 0.07 4.90 3.40 1.30 0.25 0.39 0.46 0.20 0.40
0.01 0.0 0.01 0.01 0.03 1.10 0.21 0.06 0.03 0.03 0.12 0.0
1981 0.03 0.02 0.15 0.10 0.40 0.07 0.08 0_0 0.02
0.0 0.0 0.0 0.01 0.01 0.0 0.0 0.0 0.0
1. Incomplete record for month
2 Values are both max. and min. for month max
min
Tables 20 Revision Date: 6/12/12
Revision No.: RN -06