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' CONSTRUCTION, INC. <br />556 Struthers Avenue <br />Grand Junction, CO 81501 -3826 <br />(970) 242 -5370 Fax (970) 245 -7716 <br />www.elamconstruction.com <br />May 12, 2014 RECEIVED <br />Colorado Division of Reclamation, Mining and Safety MAY 15 2014 <br />1313 Sherman St. DIVISION OF RECLAMATION <br />Room 215 MINING AND SAFETY <br />Denver, CO 80203 <br />RE: Dillon Ranch Pit, Permit M- 1987 -064; TR -04 Response to Adequacy Review Comments <br />Staff, <br />This letter will provide responses to adequacy review comments presented in Ms Pickford's letter dated <br />February 7, 2014. Although Ms Pickford identified a decision date of February 24, 2014, Elam <br />Construction submitted a letter dated February 20, 2014 requesting an extension of this decision date to <br />May 30, 2014. The numbering format in this response letter will align with that in Ms Pickford's letter. <br />1. Elam contracted with Olsson Associates to review and address the Division's concern for impact <br />to Cottonwood trees due to the proposed drawdown during dewatering . Olsson's response, in <br />the form of a Technical Memorandum is included as an attachment to this letter. <br />2. Elam contracted with Western Water and Land to review and address the Division's concern <br />regarding how wells, including the three cited will be protected by impacts. The Technical <br />Memorandum prepared by Western Water and Land addressing this review comment is <br />attached. <br />3. Elam contracted with Western Water and Land to review and address the Division's concern <br />regarding what mitigation measures will be taken in the event unforeseen impacts are <br />experienced by wells. The Technical Memorandum prepared by Western Water and Land <br />addressing this review comment is attached. <br />4. Elam contracted with Western Water and Land to review and address the Division's concern <br />regarding a proposed monitoring plan to correlate actual groundwater movement with the <br />modeled analysis. The Technical Memorandum prepared by Western Water and Land <br />addressing this review comment is attached. <br />