2023-01-05_REVISION - C1981019 (13)

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Three primary types of roads are described in the PAP: haul roads, access roads, and light-use roads. A. Haul Roads - Rule 4.03.1 The primary haul road at the Colowyo Mine is Haul Road A, which runs approximately four miles from the secondary crusher at the loadout to the current mine facilities, has been paved with asphalt. Haul Road B was once designated as an access road and is an asphalt road from State Highway 13 to Haul Road A. The Collom Haul Road is currently being constructed and runs from the Gossard Loadout to the Collom Facility area. At the request of Moffat County, an elevated roadway crossing is being installed where the Collom Haul Road crosses Moffat County Road 51. All three haul roads meet all design and construction requirements of the haul road regulations. The reclamation plan associated with Haul Road B, calls for the removal of the pavement, reduction of the road width to 12 feet, reduction of side slopes to 4:1, and revegetation of the side slopes (PAP, Section 2.05). Haul Road A and the Collom Haul Road are to be fully removed and reclaimed upon completion of mining and reclamation activities. As presented in Rule 1.04(111), the definition of "road" does not include roadways within the immediate mining pit area. This includes the haul roads in pits. B. Access Road - Rule 4.03.2 The Sturgeon Road, from Colorado Highway 13 to the Section 28 Pond, is designated as an access road. Additional access roads have also been constructed in order to obtain access to the Section 25, Section 25, Section 36 and Middle Pond associated with the Collom Pit and facilities. These roads have been designed and constructed in accordance with Rule 4.03.2. The roads are surfaced with gravel and best management practices have implemented to control surface runoff. C. Light Use Roads - Rule 4.03.3 Light use roads, some of which were pre-mining trails, are used infrequently to monitor sedimentation ponds or other facilities. These roads meet the design requirements of the Rules. Some light use roads will be retained following reclamation as "ranch roads" to approximate roads that were in the area before mining (PAP, Section 4.03.3). Examples of these light use roads include the road that accesses the South Collection Ditch and roads to several ponds including West Pit Pond, West Taylor Pond, Prospect Pond, and Gulch A Pond. H. Support Facilities - Rule 4.04 The Permit is found to be in compliance with the requirements of Rule 4.04. Information on support facilities is found in Section 4.04 of the PAP. The Division finds that support facilities have been designed, constructed, and maintained in accordance with applicable regulatory Proposed Decision and Findings of Compliance January 5,2023 Permit Renewal No. 8 Page 134