2015-04-01_REVISION - C1981010 - Laserfiche WebLink

Home Browse Search

T RAPPER MININD INCE March 31, 2015 Mr. Jared Ebert Environmental Protection Specialist Colorado Division of Reclamation, Mining and Safety 1313 Sherman Street, Room 215 Denver, CO 80203 Re: Trapper Mining Inc., Permit No. C -81 -010 Permit Revision PR -07, Response to Adequacy Review No. 5 Dear Mr. Ebert: RECEIVED APR 01 2015 Division of Reclamation, Mining & Safety Enclosed are two copies of our response to your Adequacy Review #5 letter of November 20, 2014 to Trapper's Permit Revision PR -07 application. We used your original letter as the base format, with our responses following your Adequacy Review #5 comments. The following new /revised permit narrative pages are enclosed: i -13, i -14, ii -12, iii16, pages 4 -183 to 4- 183o. A new table of contents for Appendix Q and associated information for volume VII -C of Appendix Q concerning the Reconstructed Draiange Channel Design Model and a new binder containing volume VII -C. The following permit table is revised: Table 3.1 -3 (page 3 -13). The following revised map is enclosed: M 101 (sheet 3). Rule 2.04; Minimum Requirements for Information on Environmental Resources: 23. The Division sent its fourth adequacy review letter dated July 29, 2014. Item #23 of that letter identified additional issues regarding Trapper's proposed revised section 4.8.1.3; "Post Mine Drainage Stabilization" plan submitted to the Division. Trapper and the Division met on August 21, 2014 to discuss the concerns raised in the fourth adequacy review letter. Based on that meeting, Trapper agreed to submit the results of the hydrologic model they used as a basis for their drainage stabilization plan that was not included in their original plan. The Division agreed to review the submittal to determine what information should be included in Trapper's permit and to review the adequacy of the model used. On August 29, 2014, Trapper e- mailed the information to the Division. The Division reviewed the submitted material. On November 12, 2014 the Division and Trapper met to discuss the results of the model and the drainage stabilization plan. Based on the November 12, 2014 meeting, it was agreed that the proposed revised permit text in section 4.8.1.3 of the permit could be expanded to clarify how Trapper will utilize the information obtained from the model to determine the number of check dams and dozer basins that will need to be installed in the reclaimed drainages. Also, it appears additional figures will need to be added or the current figures will need to be modified. Below is a list of items the Division believes will need to be addressed: Page I 1 a. All of the documents e- mailed to the Division on August 29, 2014 should be included in Trapper's permit as an appendix. These documents include "Guideline for the Design P.O. Box 187 Craig, Colorado 81626 (970) 824 -4401