2022-07-12_PERMIT FILE - C1981019A ‎(12)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 7/12/2022
• Doc Name: Section 25 Pond Sediment Control During Mining
• Section_Exhibit Name: Volume 18 Exhibit 7 Item 23 Part B
• Media Type: D
• Archive: Yes

Stru
#
SWS
#Land Flow Condition Slope (%)
Vert. Dist.
(ft)
Horiz. Dist.
(ft)
Velocity
(fps)Time (hrs)
#14 3 3. Short grass pasture 10.00 23.40 234.00 2.520 0.025
#14 3 Time of Concentration: 0.025
#14 4 3. Short grass pasture 7.00 78.89 1,127.00 2.110 0.148
#14 4 Time of Concentration: 0.148
#15 1
5. Nearly bare and untilled, and
alluvial valley fans 6.00 78.54 1,309.00 2.440 0.149
#15 1 Time of Concentration: 0.149
#15 2 3. Short grass pasture 10.00 47.00 470.00 2.520 0.051
#15 2 Time of Concentration: 0.051
#18 1
5. Nearly bare and untilled, and
alluvial valley fans 8.00 49.60 620.00 2.820 0.061
#18 1 Time of Concentration: 0.061
#19 1 3. Short grass pasture 9.00 48.51 539.00 2.400 0.062
#19 1 Time of Concentration: 0.062
#19 2
5. Nearly bare and untilled, and
alluvial valley fans 8.00 147.03 1,838.00 2.820 0.181
#19 2 Time of Concentration: 0.181
#22 1
5. Nearly bare and untilled, and
alluvial valley fans 6.00 68.40 1,140.00 2.440 0.129
#22 1 Time of Concentration: 0.129
#22 2 3. Short grass pasture 9.00 75.42 838.00 2.400 0.096
#22 2 Time of Concentration: 0.096
#22 3
5. Nearly bare and untilled, and
alluvial valley fans 2.00 5.70 285.00 1.410 0.056
#22 3 Time of Concentration: 0.056
#25 1
5. Nearly bare and untilled, and
alluvial valley fans 8.00 96.00 1,200.00 2.820 0.118
#25 1 Time of Concentration: 0.118
#26 1 3. Short grass pasture 31.00 44.95 145.00 4.450 0.009
#26 1 Time of Concentration: 0.009
#26 2
5. Nearly bare and untilled, and
alluvial valley fans 24.00 152.64 636.00 4.890 0.036
#26 2 Time of Concentration: 0.036
#29 1 3. Short grass pasture 9.00 24.30 270.00 2.400 0.031
#29 1 Time of Concentration: 0.031
#29 2
5. Nearly bare and untilled, and
alluvial valley fans 13.00 76.96 592.00 3.600 0.045
#29 2 Time of Concentration: 0.045
#32 1
5. Nearly bare and untilled, and
alluvial valley fans 9.00 51.66 574.00 3.000 0.053
#32 1 Time of Concentration: 0.053
#32 2 3. Short grass pasture 9.00 73.89 821.00 2.400 0.095
#32 2 Time of Concentration: 0.095
#35 1
5. Nearly bare and untilled, and
alluvial valley fans 8.00 52.87 661.00 2.820 0.065
#35 1 Time of Concentration: 0.065
#35 2 3. Short grass pasture 10.00 71.90 719.00 2.520 0.079
Filename: Exhibit 7 Item 23 Part B 10-Yr 24-Hr Section 25 During Mining.sc4 Printed 03-17-2022
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