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LL) <br /> "N 3 0 2016 <br /> DIVISION OF RECLAIiMq <br /> TON <br /> June 28,2016 MINING&SAFETY <br /> Mr.Tyler O'Donnell AGGREGATE <br /> Division of Reclamation Mining and Safety INDUSTRIES <br /> 1313 Sherman Street,Room 215 <br /> Denver,CO 80203 <br /> Re: Permit Number M- Hazeltine Mine <br /> Amendment Application AM-01 —Permanent Groundwater Mounding Mitigation Plan <br /> Request for Extension of Decision Date <br /> Dear Tyler: <br /> As noted in the Division's June 26,2016 second adequacy review,the current decision date in the above- <br /> referenced matter is June 29,2016. In order to adequately respond to the items set forth in the adequacy <br /> review,Aggregate Industries' (AI)is requesting an extension of the decision date. In addition to needing <br /> time to adequately respond to the Exhibit items,we will need to coordinate further with Urban Drainage <br /> and Flood Control District and City of Thornton with regard to the technical revision the Division is <br /> requiring for the spillway and reservoir outlet. <br /> Our initial projection for fully responding to the Second Adequacy Review is to submit by August 15, <br /> 2016 with the expectation that this matter may go to the Board in September. We are therefore requesting <br /> an extension of the decision date to August 29,2016. I would like to discuss with you,however,how this <br /> timing works with the 20-day public comment period that will be required due to the technical revision. I <br /> believe you indicated that you would not be available until later this week. I would appreciate if you <br /> could call me(970-396-5252)when you return to discuss any notice requirements and time frames <br /> necessary to accommodate the public comment period. <br /> Very truly yours, <br /> 4 <br /> �J 4a", <br /> Connie N.Davis <br /> Land Manager <br /> cc via e-mail to: <br /> Wally Erickson,DRMS <br /> Mike Refer,Aggregate Industries <br /> Tom Hesemann,Tetra Tech <br /> Timothy J.Flanagan, Esq. <br /> Aggregate Industries <br /> West Central Region,Inc. <br /> 1687 Cole Boulevard,Suite 300 <br /> Golden,CO 80401 <br /> Telephone:303-985-1070 An Equal Opportunity Employer <br /> F <br />