PERMFILE106498

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 6/6/2003
• Section_Exhibit Name: Exhibit 66 TOC and Mine Water Control Plan
• Media Type: D
• Archive: Yes

Table 43E
• Watershed Runoff Summary
10-Year, 25-Year and 100-Year - 24-Hour Storm
Area 10-Year 10-Year 25-Year ZS-Yeaz 100-Year 100-Year
Pond Watershed (acres) Runoff Dischazge Runoff Dischazge Runoff Dischazge
(acre-feet) (cfs) (acre-feet) (cfs) (acre-feet) (cfs)
43B3 5.1 0.77 9 2.28 30
43B4 1.3 0.02 1 0.07 1
43B5 0.7 0.01 1 0.04 1
43B6 1.2 0.02 0.2 0.06 0.8
4387 0.3 0.02 0.2 0.04 0.5
44A 228.3 4.32 53 ]2.33 165
44B 338.7 5.77 35 17.12 147
44C 244.2 3.21 42 1 L50 153
44D 134.7 2.3 27 6.82 91
45A 27 0.51 6 1.46 20
45B 23 0.44 3 1.24 12
46A 1 7.5 0.15 2 0.43 6
46B 23.2 0.31 3 1.01 13
• 46B 1 8
0 0
15 2 43
0 6
. . .
46B2 10.0 0.19 2 0.54 7
46C ] 1.2 0. I S 2 0.48 6
46D 198.6 3.01 34 9.33 125
46E 127.2 2.4 29 6.86 92
46F 124.7 2.13 25 6.31 84
46G 17.0 0.32 4 0.92 12
47A 102 1.55 17 4.81 64
47B 21 0.40 5 1.13 15
47C 27 0.51 6 1.46 20
48A 8.0 0.15 2 0.43 6
48B 6.2 0.11 2 0.32 4
49A1A 2 0.04 1 0.11 1
49AIB 2.0 0.04 I 0.11 1
49A2 10 0.19 2 0.54 7
49A3 5 0.09 1 0.27 4
49A4 22.0 0.42 5 1.19 16
r
U
Exhibit 66 4 Revised h'ov. 1996 PROi; Revised .4ug, !99?~LIR120
Revised Sept. 199,• MR215; Revised Dec. 199; ,NR23J, Revised Dec. 1999 TH36