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COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />May 1, 2014 <br />Chris Gilbreath <br />Tri -State Generation and Transmission Association, Inc. <br />P.O. Box 33695 <br />Denver, CO 80233 -0695 <br />Re: New Horizon Mine (Permit No. C- 1981 -008), TR- 63, third adequacy letter <br />Dear Mr. Gilbreath: <br />There are still some remaining items to be clarified with this application as explained in the following list (the <br />numbers in the list correspond to the numbers in our original letter of April 3rd and also used by you in your <br />response letter). Please provide an updated submittal and/or explanations for each item. <br />1. No further response required. <br />2. No further response required. <br />3. No further response required. <br />4. No further response required. <br />5. More information is required regarding the selection of rock sizes in the design. Your response <br />addresses the ability of the pipe to handle the load of rock and spoil, but this is not a complete <br />explanation of how rock size is determined. <br />6. No further response required. <br />7. No further response required. <br />8. No further response required. <br />9. No further response required. <br />10. No further response required. <br />11. No further response required. <br />12. No further response required. <br />13. No further response required. <br />14. No further response required. <br />15. The issue was not addressed. Please re -read the adequacy issue. The labels that I am referring to <br />are the smaller, long green labels. Not the large single letter labels. <br />If you have any questions, please contact me at 303.866.3567 (extension 8113) or Rob.Zuber @state.co.us. <br />Sincerely, <br />Robert Zuber, P.E. <br />Environmental Protection Specialist <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http: / /mining.state.co.us <br />John W. Hickenlooper, Governor I Mike King, Executive Director I Virginia Brannon, Director <br />Colo <br />'f 1876 �` <br />