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F)l <br /> 15.The Kleinfelder report states that it is "valid for 3 years after report <br /> issuance" (2008). This statement was not included in the Attachment <br /> A report. Technical Revision 02 includes statement from HDR (dated <br /> 11/2016) that Technical Revision 2 "meets specifications outlined in <br /> the 2008 report", but does not specifically mention anything about the <br /> 3-year validity date. <br /> o It is not clear if the Kleinfelder analysis is still valid for the <br /> proposed reclamation revision, or if the revision simply meets the <br /> recommendations outlined by Kleinfelder. <br /> Response: <br /> The technical revision is revised to state that the conditions described in <br /> the geotechnical report for the analyses performed and the conclusions <br /> and recommendations presented still exist at the site and should remain <br /> valid for the duration of the planned reclamation. <br /> 16. If the end land use for the site changes from rangeland, additional <br /> stability evaluation work may be required, including stability analysis <br /> of the entire slope as a whole. <br /> Response: <br /> The technical revision is revised to state that the premise of the <br /> reclamation plan is no change in the end land use and that any changes <br /> in the end land use would require additional evaluation and technical <br /> revision. <br /> We hope that the above responses satisfactorily address the concerns identified in <br /> the Division's Adequacy Review No. 3. If there are still questions or unresolved <br /> issues regarding the Technical Revision, please let us know and we would look <br /> forward to meeting with the Division to resolve each of them. <br /> Sincerely, MM <br /> HDR <br /> John Ballegeer , <br /> Project Manager <br /> Cc: Connie Davis —Aggregate Industries-WCR, Inc. <br /> hdrinc.com 2 <br /> 1670 Broadway,Suite 3400,Denver,CO 80202-4824 <br /> (303)764-1520 <br />