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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural kesources <br />1313 Sherman St., Raom 215 <br />Denver, Colorado 80203 <br />Phone: 1303) 8663567 <br />FAX: 1303) 832106 <br />May 31, 2006 <br />COLORADO <br />DIVISION OP <br />MIN)iRALS <br />GEOLOGY <br />0.EC LANATION•NININ6 <br />SAf ETT•SCIENCE <br /> Bill Owens <br />Mr. Michael S. Savage Go~mo< <br />Savage and Savage Environmental Ressell ceo~ge <br />461 O Haystack Drive exmnive DiN'AOr <br />Windsor, CO 80550 ~u"'•~t°"'' <br /> Division Director <br /> Narursl Resourte Tnatee <br />Re: National King Coal LLC, permit C-81-035 <br />Permit Revision PR-S <br />Adequacy Comments #3 <br />Dear Mr. Savage: <br />The Division has reviewed your responses to the comments in our letter of Mazch 13, 2006. The <br />following comments have been resolved: 19, 20, 21, 22, 26, 27, 28, 29, and 30. (The following <br />comments were previously resolved: 1 through 7, 9, 10, 13, 14, 15, and 16.) I will forward any <br />follow-up comments to you regarding 11, 12, 17, 18, and 23 when I receive them from Janet Binns. <br />I have follow-up comments, as shown below, with numbering corresponding to our previous letter. <br />8. The Division is preparing a reclamation cost estimate and, prior to issuing a proposed <br />decision, will provide you a draft copy and will meet with you as requested. <br />24. The embankment safety factor analysis is adequate. Please provide a P.E. certification for <br />the safety factor analysis. <br />25. The ditch designs appeaz adequate, with the exception of flow control structures not being <br />shown at ditch junctions. Please provide a description and design of any flow control <br />structures planned for the following ditch junctions: UDD 1/UDD2, UDD 3/UDD 4, and <br />UDD 1/UDD 4. Also, please proved a P.E. certification for the section "Hydrologic and <br />Hydraulic Design of Sedimentation Pond and Other Drainage Features". <br />If you have any questions, do not hesitate to call me. <br />Sincerely, <br />ldlt~ <br />Tom Kaldenbach <br />Environmental Protection Specialist <br />cc: Daniel 1. Hernandez, CDMG <br />Tom Bird, National King Coal LLC <br />Office of Office of Colorado <br />Mined Land Reclamation Active and Inactive Mines Geological Survey <br />