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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />COLORADO <br />D IV IS I ON OF <br />RECLAMATION <br />MINING <br />SAFETY <br />Bill Ritter, Jr. <br />INTERNAL MEMORANDUM Governor <br />Harris D. Sherman <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br />DATE: December 7, 2007 Natural Resource Trustee <br />TO: Mike Boulay <br />FROM: Dan Mathews <br />RE: New Horizon Mine (Permit No. C-81-008) <br />Technical Revision No. 55 (TR-55) <br />I have reviewed the TR-55 application pursuant to your request, and my review comments are <br />listed here below. Please let me know if you have any questions. <br />1. The cover letter to the TR-55 application states that TR-55 solely covers the change in <br />success standards for irrigated pasture from a standard to a reference area, with the <br />exception of the inclusion of a proposal to include interseeding as a husbandry practice for <br />irrigated cropland. <br />Based on our review, there appear to be certain other changes included in the application, <br />including acreage of various postmining vegetation types, detail regarding sampling <br />protocol and statistical assessment for revegetation success demonstration, and various <br />other changes. However, it is clear that only a portion of the concerns addressed in the <br />Division's TR-54 adequacy review letter dated November 21, 2006 were addressed in the <br />TR-55 submittal. Some of the concerns related to Vegetation Information, Premine and <br />Postmine Land Use, and the Revegetation Plan were addressed in TR-54 response <br />submittals, some are addressed in the current TR-55 application, and we are aware that <br />WFC is planning to submit a separate revision application (TR-56) to address remaining <br />issues. <br />In order to ensure and document that all issues identified in the November 21, 2006 <br />adequacy letter have been addressed, we have the following request. Please include an <br />introductory section with the TR-56 submittal, providing an item by item response to <br />each of the adequacy issues listed in the November 21, 2006 adequacy letter (Items 1 <br />through 28). Within the response, identify items that were addressed and approved <br />within TR-54 (if any), as well as items that were addressed within the TR-55 <br />submittal, and Items addressed within the TR-56 submittal. Include reference to <br />associated text, tables, maps, or appendices, along with the applicable page or map <br />revision date. If a particular page or exhibit was amended more than once, please <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines