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King Coal Mine (C-1981-035) TR -25 Adequacy Review #2DRMS <br />King Coal II Adequacy Review of TR -25 <br />Reviewed with respect to the following rules: <br />Rule: 2.05.3 (4)(a)(i)(iii)Operation Plan/ Permit Area <br />The requirements of these sections of the Rule 2. <br />1. Please verify the following elevations: <br />a. Bottom of sediment pond <br />05.3(4) have been adequately met in the permit. <br />The bottom of sediment pond elevation has been added to Mao Kina II -007 C. <br />b. Top of sediment pond embankment <br />The too of sediment pond elevation has been added to Mao Kina II -007 C. <br />All items resolved <br />2. Please indicate if there will be any additional surface disturbance that was not <br />previously permitted. <br />No additional surface disturbance is anticipated. <br />Resolved <br />3. On the cover letter supplied with the TR GCC indicated that the detention pond has the <br />necessary volume to store the 25 year 24 hour storm event. Please also indicate the <br />modeled volume of rainfall. <br />The modelled volume of rainfall is listed in the SedCad run paaes as 2.20 inches. <br />The sediment cleanout level of 7229.25 ft. called out in the Executive Summary of <br />Appendix 11 (1) changed to 7231.67 ft. as per Map King II 007. Please update the <br />Executive Summary to reflect changes to: <br />a. Maximum sediment level and its acre feet of storage capacity <br />b. Sediment clean out level and associated acre feet of storage capacity. <br />These levels and capacities have been added to Mao Kina II 007A. <br />All items resolved <br />5. Please address La Plata County concerns (letter enclosed) expressed in <br />their 24 July letter to DDRMS regarding: <br />a. Sediment removal from pond at 60 % of max level, (update executive summary) <br />b. Disposal and handling methods of sediment removed from pond. <br />Sediment removed from the pond is transported by truck to the refuse pile at the Kina I <br />mine site, spread and compacted in lifts not to exceed 24 inches. <br />All items resolved <br />Rule: 2.10 Maps and Plans <br />To adequately meet the requirements of this Rule please provide the following map updates. <br />Maps General <br />9. Regarding the three maps (007A, 007B and 007C) provided with the application; please <br />update each of these maps to include the following information: <br />a. Call out the contour interval (e.g. Contour interval is 2'). <br />The contour interval has been added as reauested. <br />Prepared by: R. Reilley December 2015 <br />File location: M:\Coal\rar\1MKingCoal\TR25 Page 2 <br />