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COLORADO <br /> a Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> 21 July 2021 <br /> Ms.Miranda Kawcak <br /> Moffat County Mining,LLC. <br /> 29515 Routt County Road 927 <br /> Oak Creek,CO 80467 <br /> RE: Refuse Pile Report Review 2021 Quarter 1 <br /> Williams Fork Mines,Permit No. C1981044 <br /> Dear Ms.Kawcak; <br /> The Colorado Division of Reclamation,Mining and Safety has completed its review of the above <br /> referenced report. Please see the Division's findings below regarding the report's compliance with the <br /> following Rules. <br /> 1. 4.10.2(1) <br /> a. The mine waste bank was inspected, on behalf of the person conducting surface coal <br /> mining operations, by a qualified registered engineer, or other qualified professional <br /> specialist. <br /> b. The report is signed by you,the environmental manager. <br /> c. The report indicates the waste bank was capped and in December 2020 topsoil was <br /> placed on the surface of the waste pile. <br /> d. The 99 excavation waste disposal area was reclaimed in 2009. <br /> 2. 4.10.2(2) <br /> a. The submitted inspection report complies with the inspection requirement of rule <br /> 4.09.1(11). <br /> o This was a quarterly inspection. <br /> o The report indicated the stability of the fills was inspected and no appearances of <br /> instability, structural weakness or other hazardous conditions were noted. The <br /> inspection was conducted on 10 March 2021. However, the Division did not <br /> receive the report until 13 July 2021. <br /> o The Division requests that the operator submit the report so that the Division will <br /> receive it within the required two week time frame outlined in Rule 4.09.1(1 1)(c). <br /> b. The stability of the fills was inspected. It does not appear tests were necessary to <br /> evaluate any potential hazard to human life and property. <br /> o The note on the submitted report indicates that with the exception of seeding, <br /> reclamation of the waste bank consisting of capping,placement and compaction of <br /> fill was completed in December of 2020. An average of 1 foot of topsoil was placed <br /> on the fill. Seeding will occur in spring 2021. <br /> o Stability of the waste disposal areas was inspected and problems were not <br /> identified. No maintenance items were noted. <br /> c. Copies of the inspection findings shall be maintained at the mine site. <br /> OF COlO <br /> n O <br /> 1313 Sherman Street, Room 215, Denver, CO 80203 1 P 303.866.3567 F 303.832.8106 1 https://drms.colorado.,Pov * <br /> Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director * 1876 <br />