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SL-08 I 5/20/2015 1/7/2016 <br /> SL-09 I 2/29/2016 9/28/2016 <br /> SL-10 III 7/18/2016 1/12/2017 <br /> SL-11 I 3/10/2017 11/13/2017 <br /> SL-12 II and III 3/10/2017 12/7/2017 <br /> SL-13 I 4/12/2018 8/30/18 <br /> SL-14 II and III 5/24/18 11/24/18 <br /> SL-15 I, II,and III 2/8/19 9/10/19 <br /> SL-16 I, II,and III 6/26/19 11/26/19 <br /> SL-17 I, II,and III 9/26/19 1/25/20 <br /> SL-18 I 3/20/20 8/22/20 <br /> SL-19 II 7/22/20 10/26/20 <br /> SL-20 I 4/13/21 5/28/21 <br /> SL-21 I 2/28/22 6/24/22 <br /> SL-22 II 7/13/2023 11/3/2023 <br /> SL-23 I, II,and III 9/16/2024 1/22/2025 <br /> SL-24 I 3/20/2025 8/6/2025 <br /> See Exhibit 2A of the Colowyo Mine Annual Reclamation Report for the locations of the previous Phase I, II <br /> and III Bond Release areas at the Colowyo Coal Mine. See Table 1 in this document for the previous bond <br /> release acreages and Table 2 in this document for the previous bond release amounts. <br /> IL CRITERIA AND SCHEDULE FOR BOND RELEASE <br /> PHASE I <br /> The Division evaluated Colowyo's request for partial Phase I,II and III Bond Release on 1.8 acres in the East Pit, <br /> comprised of Streeter South Side Ditch as referenced in the SL-25 application and as shown on Figure 1 of this <br /> document. The process of releasing the reclamation bond for a coal mine site in Colorado is explained in Rule 3.03 <br /> and further described in the Division's 1995 Guideline Regarding Selected Coal Mining Bond Release Issues. The <br /> bond release process involves three phases. At Phase I, Rule 3.03.1(2) (a) states, "Up to sixty percent of the <br /> applicable bond amount shall be released when the permittee successfully completes backfilling, regrading, and <br /> drainage control in accordance with the approved reclamation plan." <br /> Evaluation and inspection of the reclaimed areas was based on the specific requirements of the reclamation plan and <br /> the functional requirements of the post-mining land use. Criteria for Phase I bond release includes all or part of the <br /> following. <br /> 1. Hillslope and drainage channel gradients and general design compliance; <br /> 2. Performance of the reconstructed topography. Symptoms of failure or instabilities such as slumping or <br /> exposed highwalls were examined; <br /> 3. Hillslope design/fimction with regard to erosion; <br /> 4. Swales and depressions with regard to numbers of features and effect on post-mining land use; <br /> 5. Blending of regraded land to undisturbed areas; <br /> 6. The functioning of drainages with regard to knickpoints,blending at disturbance boundaries and channel <br /> erosion; <br /> Proposed Decision and Findings of Compliance <br /> Partial Phase I,II and III Bond Release SL-25 Page 5 of 14 <br />