2020-06-08_REVISION - C1994082 (30)

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landlocked and inaccessible. In addition, SPL uses these access roads to perform maintenance and monitoring throughout the Yoast Mine property. These roads have been modified to the acceptable post-mine land use requisitions. The road profiles and cross-sections can be found in the approved mine PAP in Exhibit 20-3, Post Mine Road Profiles. LIGHT USE ROADS For limited access, Light-Use Roads have been retained as permanent features to access reclaimed lands and accommodate future landowner use. Light-Use Roads retained include LU 1, LU 2, LU 3A, LU 313, LU 4, and LU 5. The Light-Use Roads retained are used property access by landowners, access to monitoring sites for water quality, pond access for inspections, and maintenance and monitoring of shrub plots and reclaimed parcels. All Light-Use Roads meet the criteria for design, grade, and drainage. Maintenance on the Light-Use Roads will be conducted as necessary prior to final bond release. CULVERTS For adequate drainage throughout the mine property, multiple culverts have been approved as permanent features. For Access Road "A" culverts YA-1, YA-2, YA-3, YA-3A, YA-4, YA-4A, YA-5, YA-5A, YA-6, YA-7, YA-UN, and YM-1 remain as permanent. For Access Road "B" culverts YB-1, YB-2, YB-3, and YB-6 remain as permanent. Within all of the Light Use Roads there are 4 culverts that remain as permanent features; these include EX-2, EX-4, EX-5, and LU- 1. Design documentation of each culvert is included in the approved mine PAP in Attachments 13- 8 and 13-12. WATER WELL The water well that feed the Yoast Mine Shop has been retained as a permanent feature. This well is a domestic and industrial water supply that has been retained to supply water, as necessary, for wildlife and livestock consumption, shrub plot irrigation, and other land owner uses as identified in the future. A complete well summary can be found in Appendix 7-1 in the approved mine PAP along with the water right in Attachment 16-4. SL-8 - 13