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2016-02-25_GENERAL DOCUMENTS - C1982056
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2016-02-25_GENERAL DOCUMENTS - C1982056
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Last modified
8/24/2016 6:19:30 PM
Creation date
2/26/2016 8:12:17 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
General Documents
Doc Date
2/25/2016
Doc Name
Proposed Decision and Findings (PR11)
From
DRMS
To
Twentymile Coal, LLC
Permit Index Doc Type
Findings
Email Name
JLE
DIH
Media Type
D
Archive
No
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B. Surface and Ground Water Monitoring <br />The applicant will conduct monitoring of ground water in a manner approved <br />by the Division. The ground water monitoring plan can be found in Exhibit <br />14, Volume II -B of the permit application (4.05.13(1)). <br />2. The applicant will conduct monitoring of surface water in a manner approved <br />by the Division. The monitoring plan was submitted under 2.05.6(3)(b)(iv) <br />and can be found in Exhibit 14, Volume II -B of the permit application <br />(4.05.13(2)). NPDES monitoring is conducted under permits CO -0027154 <br />(surface facilities area), CO -0042161 (Fish Creek Borehole), CO -0036684 <br />(Fish Creek Tipple), COG -850051 (18RT) and COG-00850054(6MN <br />sediment pond). <br />3. The following wells serve as the Foidel Creek Mine's ground water points of <br />compliance: 97013TM (Twentymile Sandstone), 008-77-58 (Wadge <br />overburden), 008-AU3 (Fish Creek alluvium), 008 -AT -1 (Trout Creek <br />alluvium), and 008 -AV -2 (Foidel Creek alluvium.) <br />The Division has reviewed the current surface and ground water monitoring plans <br />as part of the PR -11 process. Three new monitoring sites will be added with PR - <br />11; they are two bedrock wells that will monitor the interburden between the <br />Wadge/Wolf Creek coal seams and one surface water monitoring site (900A). <br />The monitoring plans are adequate to monitor for the development of impacts <br />(4.05.13(2)). <br />IV. Topsoil — Rule 4.06 <br />Replaced soils that were stockpiled will be chisel plowed in addition to contour <br />furrowed. These soils will be drill seeded as soon as practicable following topsoil <br />replacement. Stockpiled topsoil not utilized at Energy Mine No. 3 has been <br />transferred to the Foidel Creek permit for distribution at the Fish Creek Tipple. <br />An alternative treatment to eliminate slippage surfaces, relieve compaction, and <br />provide for root penetration is approved. This treatment will consist of chisel plowing <br />(4.06.4(1)). <br />V. Sealing of Drilled Holes and Underground Openings — Rule 4.07 <br />The Division will require that each hole, well or other underground opening be <br />capped, sealed, backfilled, or otherwise properly managed (4.07.3). <br />VI. Use of Explosives — Rule 4.08 <br />Foidel Creek Mine 31 February 25, 2016 <br />
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