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March 14, 2016 <br />COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Depaitrr'era of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Cody Woolridge <br />Trollco, Inc. <br />1625 Pelican Lakes Point, Suite 201 <br />Windsor, CO 80550 <br />RE: Stegner Farms; DRMS File No. M-1999-021; Technical Revision No. 6 — Adequacy <br />Review No. 1 <br />Dear Mr. Woolridge, <br />The Division of Reclamation, Mining and Safety (Division) received Technical Revision - 06 <br />(TR -06) for the above referenced site on March 1, 2016. The decision date for this Technical <br />Revision is March 31, 2016. The Division has reviewed the proposed revisions and has the <br />following comments: <br />1. The Applicant is proposing to leave the perimeter berms in place. In addition, the Operator is <br />proposing to connect the berms along the north and west edges of the site. Please confirm <br />that the berms to be constructed will match the approximate dimensions (height, width, <br />outslope) of the existing berms. <br />2. Please provide an estimate of how much material will be required to construct the berm and <br />specify where the material will come from. <br />3. Please specify how the berms will be stabilized. Will the berms be seeded? If the berms will <br />be seeded, specify the seed mix to be used, the seeding rate (PLS/acre), and seed application <br />method. <br />4. The Reclamation Plan Map prepared by Coffey Engineering & Surveying does not conform <br />to the required mapping criteria. The Reclamation Plan Map must be revised to contain the <br />following information: <br />a. Depict the entire permit area. <br />b. Contain a labeled permit boundary. <br />c. Contain an appropriate title (Reclamation Plan Map). <br />d. Shall be prepared at a scale not larger than 1 inch = 50 feet nor smaller than 1 inch -- <br />660 <br />660 feet. <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. Hickentooper, Governor 1 Mike King, Executive Director 1 Virginia Brannon, Director <br />