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Colowyo Coal Company L.P. <br /> Reclamation Annual Section Map <br /> Unit Reclamation Number Number <br /> Report Year <br /> EP061 2018 5 Exhibit 5 <br /> WP026 2018 5 Exhibit 5 <br /> WP027 2018 5 Exhibit 5 <br /> WP028 2018 5 Exhibit 5 <br /> WP029 2018 5 Exhibit 5 <br /> WP032* 2015 7 Exhibit 7 <br /> *Topsoil depths for WP032 were taken as part of WP021. WP032 was originally <br /> part of WP021 but was separated out to an individual reclamation unit post 2015. <br /> C. Revegetation Success Demonstration <br /> Pursuant to Rule 4.15.8(3), Phase II bond liability release will be considered acceptable if the <br /> vegetative establishment on the reclaimed land meets the requirement of 90% herbaceous cover <br /> of the reference area standard with 90% statistical confidence. Please see Appendix B for <br /> information addressing vegetation establishment and sample locations. <br /> D. Erosion Control <br /> Any rills and gullies that may occurred during the initial years of revegetation were mitigated <br /> when they occurred, and were reported in the annual rill and gully report to the Division. <br /> Successful revegetation establishment as demonstrated in this Phase II bond release application <br /> continues to assist these reclamation units to remain erosional stable. <br /> E. Sedimentology <br /> In accordance with Rule 3.03.3(b), bond liability release cannot be granted until the applicant <br /> demonstrates that the existing revegetated area will result in equivalent or lesser sediment <br /> contributions to surface runoff when compared with pre-mining levels as determined by baseline <br /> data. Please see Appendix B, which documents the sediment contributions for the areas being <br /> applied for Phase II bond release. <br /> SL-22 Phase II Bond Release Application <br />