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COLORADO <br /> Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resourccs <br /> February 7,2020 <br /> Tony Tennyson <br /> Colowyo Coal Company L.P. <br /> 5731 State Highway 13 <br /> Meeker, CO 81641 <br /> Re: Colowyo Coal Mine (Permit No. C-1981-019) <br /> Technical Revision No. 135(TR-135) <br /> Adequacy Review <br /> Dear Mr.Tennyson: <br /> After reviewing TR-135 from Colowyo Coal Company L.P.(Colowyo),the Division has the following <br /> comments: <br /> 1. On proposed Volume 1,Page 2.03-23,the first sentence is duplicated from approved Volume 1,Page <br /> 2.03-22.Additionally,the footer on proposed Volume 1,Page 2.03-23 refers to TR-134.Please provide <br /> and updated proposed Volume 1,Page 2.03-23 <br /> 2. In the fourth paragraph found in proposed Volume 1,Page 2.04-24,it refers to Table 2.04.7-10 twice. <br /> Please provide and updated proposed Volume 1,Page 2.04-24 with a corrected reference. <br /> 3. In the first paragraph found in proposed Volume 1,Page 2.05-8,it states that the drainage from Gossard <br /> Loadout passes through one of three sedimentation ponds located on the northeast side of the facility <br /> as shown on Map 12A. Currently approved Map 12A shows the hydrology for the South Taylor area <br /> and does not include the Gossard Loadout area. Please update the map reference found in proposed <br /> Volume 1,Page 2.05-8. <br /> 4. Under the third paragraph of Section 4.05.9 in proposed Volume 1,Page 4-13,Map 41A is referenced <br /> but has been requested for removal of the Colowyo PAP as noted in Colowyo's Change Sheet for <br /> Revisions.Please update the map reference. <br /> 5. Under Section 4.15.6 in proposed Volume 1,Page 4-41,please update the reference of CDOW to CPW <br /> to ensure consistency with references. <br /> 6. Under the last paragraph in proposed Volume 1, Page 449, Map 4 - Sheet 1 is referenced which <br /> appears to be left over from a corrected reference of Map 4C—Sheet 1.Please update the reference to <br /> just Map 4. <br /> 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us * *' <br /> Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director \ 876*'/r <br />