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2025-10-31_GENERAL DOCUMENTS - C1981019
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2025-10-31_GENERAL DOCUMENTS - C1981019
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Last modified
11/4/2025 10:50:43 AM
Creation date
11/4/2025 10:49:26 AM
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DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
General Documents
Doc Date
10/31/2025
Doc Name
Proposed Decision and Findings of Compliance
From
DRMS
To
Colowyo Coal Company
Type & Sequence
PR5
Permit Index Doc Type
Findings
Email Name
HR1
ZTT
Media Type
D
Archive
No
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18, 2023 and approved on August 24, 2023. +$704.00 <br /> Technical Revision 160 - TR160 proposes six small channels and three sediment sumps to manage <br /> storm water runoff from the Collom Haul Road. Some of the proposed channels will route <br /> stormwater runoff to existing sediment control structures and others are proposed to be routed <br /> to existing sumps or newly proposed sumps. The revision was received on September 18, <br /> 2023 deemed complete on September 28, 2023 and approved on December 12, 2023. <br /> +$25,577.00 <br /> Technical Revision 161 - TR161 proposes revisions to the Collom Mine Plan by reducing the <br /> areas to be mine and revises the overall mining timing. TR-161 also proposes a revised post <br /> mine topography (PMT) for the Collom and South Taylor Pits. The revision was received on <br /> October 24, 2023, deemed complete on November 3, 2023 and approved on December 14, <br /> 2023. +$114,512.00 <br /> Minor Revision 253 -MR253 proposes to change the resident agent for Colowyo. The revision <br /> was received on December 12, 2023, deemed complete on December 14, 2023 and approved <br /> on December 14, 2023. <br /> Technical Revision 162 - TR162 proposed the GD-3 channel to route surface water runoff from <br /> the intersection of Haul Road A and the Collom Haul Road to the Gossard Pond. The revision <br /> was received on February 5, 2024, deemed complete on February 13, 2024 and approved on <br /> March 15, 2024. +$6,105.00 <br /> Technical Revision 163 - TR163 provides the as-builts for EP1, EP2, EP3 stock ponds, and the <br /> Section 15 Pond. The revision was received on February 22, 2024, deemed complete on <br /> February 26, 2024 and approved on March 26, 2024. <br /> Minor Revision 254 -MR254 corrected issues with tables numbers for Colowyo's seed mixture <br /> and contingency seed mixture. It also revised the surface water monitoring plan,by changing <br /> the correct laboratory methodology for Mercury from total recoverable to total. The revision <br /> was received on March 21, 2024, deemed complete on March 29, 2024 and approved on April <br /> 3, 2024. <br /> Minor Revision 255 -MR-255 allowed for the re-brushing of a light use road on the west side of <br /> Taylor Creek. The revision was received on June 25, 2024, deemed complete on July 2, 2024 <br /> and approved on July 10, 2024. +$5,780.00 <br /> Minor Revision 256 -MR-256 provides an updated certificate of liability insurance for Colowyo. <br /> The revision was received on August 5, 2024, deemed complete on August 6, 2024 and <br /> approved on August 6, 2024. <br /> Minor Revision 257 -MR-257 documented ground disturbance activities that occurred within <br /> Colowyo's permit boundary from an adjacent solar construction project. The ground <br /> disturbance is not associated with Colowyo. The revision was received on August 12, 2024, <br /> deemed complete on August 14, 2024 and approved on August 22, 2024. <br /> 11 <br /> Permit Revision No.5(PR-05),G 1981-019 <br />
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