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revision was received on April 20, 2022, deemed complete on April 25, 2022 and approved on
<br /> Apri125, 2022. +$408,354.00
<br /> Technical Revision 153 - TR153 provides a new design for the at grade crossing at Moffat County
<br /> Road 51 to facilitate moving a dragline through the crossing. The revision was received on
<br /> April 21, 2022, deemed complete on April 26, 2022 and approved on June 28, 2022. +$524.00
<br /> Technical Revision 154 - TR154 proposes are revised mining plan and post mine topography for
<br /> the Collom Pit. The revision was received on May 3, 2022, deemed complete on May 13,
<br /> 2022 and approved on July 12, 2022.
<br /> Minor Revision 241 -MR241 proposes updated to the topsoil movement for the West and South
<br /> Taylor Pits. The revision was received on May 23, 2022, deemed complete on June 2, 2022
<br /> and approved on June 6, 2022.
<br /> Minor Revision 242-MR242 proposes a topsoil windrow on the west crest of Little Collom
<br /> Gulch within the Collom Pit. proposes two light-use roads adjacent to the Collom Haul Road
<br /> for access to monitor and maintain several small sediment sumps. The revision was received
<br /> on June 20, 2022, deemed complete on June 30, 2022 and approved on July 8, 2022.
<br /> Minor Revision 243 -MR243 proposes a topsoil windrow on the west crest of Little Collom
<br /> Gulch within the Collom Pit. The revision was received on July 14, 2022, deemed complete
<br /> on July 22, 2022 and approved on August 1, 2022.
<br /> Minor Revision 244-MR244 provides an updated certificate of insurance for the Colowyo Mine.
<br /> The revision was received on August 2, 2022, deemed complete on August 3, 2022 and
<br /> approved on August 3, 2022.
<br /> Technical Revision 155 - TR155 proposes two sediment ponds,the Upper and Lower Section 3
<br /> Ponds respectively,which are proposed to be within Streeter Ditch directly below the primary
<br /> crushing facility at Colowyo. The sediment ponds will be used in series with the Lower
<br /> Section 3 Pond being a non-discharging structure. The revision was received on August 16,
<br /> 2022, deemed complete on August 26, 2022 and approved on October 17, 2022.+$95,851.00
<br /> Technical Revision 156 - TR156 proposes to include a geotechnical report addendum(Exhibit 23,
<br /> Item 4) into the permit to address the requirement from Exhibit 23, Item 1 (Figure 4), for a
<br /> geotextile fabric to placed over the underdrain in the Little Collom Gulch Valley Fill. The
<br /> revision was received on September 23, 2022, deemed complete on October 3, 2022 and
<br /> approved on November 7, 2022.
<br /> Technical Revision 157 - TR157 proposes to reduce Colowyo's reclamation liability. The revision
<br /> was received on December 8, 2022, deemed complete on December 16, 2022 and approved on
<br /> February 14, 2023. - $38,218,109.00
<br /> Minor Revision 245-MR245 revised the mine plan timing for theSouth Taylor Pit, and provides
<br /> documentation of a wildfire that occurred within the mine permit boundary. The revision was
<br /> 9
<br /> Permit Revision No.5(PR-05),G 1981-019
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