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2022-07-12_PERMIT FILE - C1981019 (24)
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2022-07-12_PERMIT FILE - C1981019 (24)
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Last modified
5/10/2023 9:20:49 AM
Creation date
5/10/2023 9:16:13 AM
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DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Permit File
Doc Date
7/12/2022
Doc Name
Sediment 26 Pond Sediment Control During Mining
Section_Exhibit Name
Volume 18 Exhibit 7 Item 23 Part C
Media Type
D
Archive
No
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Exh. 7-23C-3 Revision Date: 4/28/22 <br /> Revision No.: TR-154 <br />Temporary Channels <br /> <br />The Section 26 Pond watershed is comprised of three temporary channels including the D-1, D- <br />2, and D-6 Ditches. The configuration for each of these three ditches is include in the Section <br />26 Pond 10-Year, 24-Hour During Mining Storm Event Demonstration and is further outlined as <br />described in the following table: <br /> <br />Ditch Name Flow, Q <br />Slope, <br />% Type <br />Specified <br />Depth <br />Bottom <br />Width <br />Side <br />Slope, <br />H:1V <br />Rip Rap, <br />D50, in <br />D-1 Ditch 12.4 21.0% riprap 4.0 12.0 2.0 6.0 <br />D-2 Ditch 10.5 4.9% riprap 4.0 12.0 2.0 3.0 <br />D-4 Ditch 37.6 5.9% vegetated 4.0 20.0 2.0 NA <br /> <br />.
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