Laserfiche WebLink
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 />April 1, 2016 <br />Jerry Nettleton <br />Twentymile Coal, LLC. <br />29515 Routt County Road 27 <br />Oak Creek, CO 80467 <br />RE: Foidel Creek Mine; C-1982-056; Minor Revision No. 295 (MR295), Passive Treatment <br />System Geotechnical Investigations; Adequacy Review No. 1 <br />Dear Mr. Nettleton: <br />The Colorado Division of Reclamation, Mining, and Safety (Division) has reviewed the above referenced <br />revision. There are several items that will need to be addressed prior to the approval of this revision. <br />Please address the following items: <br />1. Please revise proposed Page 2.05-50 to add MR295 to the "Mine Water Discharge and Recycle <br />System," heading. <br />2. At the end of the first paragraph of the "Mine Water Discharge and Recycle," section on <br />proposed revised page 2.05-50, please specify that Twentymile Coal, LLC. will obtain Division <br />approval prior to constructing the passive treatment system. <br />3. Please commit to salvaging and stockpiling the topsoil separate from the subsoil during the <br />excavation of the geotechnical test -pits on page 2.05-51. According to Map 17, there should be <br />between 20 and 30 inches of topsoil within the area where the geotechnical investigation will <br />occur. <br />4. Proposed revised page 2.05-84.10 does not take into account the approval of MR15-291. The <br />section and paragraph added for the 13 -Left Outby Utility Borehole needs to be added to <br />proposed revised page 2.05-84.10. Please insure the pagination and text follows from the pages <br />before and after this revised page. <br />5. Attached is the reclamation cost estimate for this revision. The Division estimates an increase in <br />liability of $2,308.69. Please review and indicate if you concur with the estimate. <br />0 �o< <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 />1876 <br />