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2017-09-07_PERMIT FILE - C1981019A (4)
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2017-09-07_PERMIT FILE - C1981019A (4)
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Last modified
4/25/2018 8:16:52 AM
Creation date
9/11/2017 7:52:25 AM
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Template:
DRMS Permit Index
Permit No
C1981019A
IBM Index Class Name
Permit File
Doc Date
9/7/2017
Doc Name
Performance Standards
Section_Exhibit Name
Volume 15 Rule 4
Media Type
D
Archive
Yes
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RULE 4 PERFORMANCE STANDARDS <br />Collom Pit will intercept and hold surface water runoff thus providing less discharge through the Section <br />25 Pond. Clean water diversions will be constructed above the active operations (also potentially within <br />Little Collom Gulch) to direct surface water runoff around the disturbed areas. Once mining is complete <br />the entire Collom Pit will be backfilled with the material stored in the temporary spoil pile and the pre- <br />mie profile and function of Little Collom Gulch will be restored. <br />It is not anticipated that any of the areas that are proposed to be disturbed within the stream buffer zones <br />will have any long term impacts to Wilson Creek, Jubb Creek, or Little Collom Gulch due to proper use <br />of BMPs, sediment control structures, clean water diversions, and due the fact the disturbance will be <br />offset by reclamation. The two road crossing will be stabilized immediately following construction, and <br />Little Collom Gulch will be restored to the premine condition when mining and reclamaitn activies are <br />complete. <br />No other areas within the Collom disturbance footprint will impact any stream buffer zones. <br />4.06 TOPSOIL <br />The topsoil removal, storage, and redistribution plan for the proposed disturbed area associated with the <br />Collom Pit mining areas will follow the procedures described Section 2.05.3 (5) and 2.05.4 (2) (d) in this <br />volume. Additional information regarding the topsoil resource may be found in the Collom Soils baseline <br />survey located in Exhibit 9, Volume 13. Before the disturbance of any area, topsoil is removed and <br />segregated from other material. Upon removal, this material is either immediately redistributed on regraded <br />areas or stockpiled in locations shown on the Topsoil Handling Map 28C <br />All topsoil, as classified in section 2.04.9, is removed from areas to be affected by the surface coal mining <br />operations. The graphical representation of the topsoil removal is shown on the Topsoil Handling Map <br />(Map 28C). The average thicknesses for each soils series to be removed can be found on Table 2.04.9-16 <br />as defined in Table 2.04.9-19. Removal techniques for topsoil are described in Section 2.05.3. <br />Furthermore, please see Section 4.06 in Volume 1 for additional information regarding topsoil. <br />4.07 SEALING OF DRILLED HOLES AND UNDERGROUND OPENINGS <br />Drill holes and underground openings will be sealed in accordance with the procedures outlined in the <br />Section 4.07 in Volume 1. <br />Collom — Rule 4, Page 13 Revision Date: 12/30/16 <br />Revision No.: TR -108 <br />
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