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=A: • - G <br />Civil, Structural & Geotechnical Engineers <br />222 South Park Ave. • Montrose, CO 81401 <br />Ph.: (970) 249-6828 • FAX: (970) 249-0945 <br />Reclamation Plan, 6.4.5 <br />1) As we discussed on March 31, 2011, Montrose County plans to import suitable inert <br />backfill material from other project areas within the county as those materials become <br />available. The general concept is that as rip-rap trucks bring in material for annual Montrose <br />County road improvements/maintenance projects, those same trucks will haul off suitable <br />inert backfill material back to the quarry site and stockpile that material for future <br />reclamation. It will be stabilized by native seed vegetation as discussed in item 1 above. <br />Since no single source of backfill material will be used, and since Montrose County is not <br />required to post a financial bond for that material, it is our understanding that Montrose <br />County will not be required to identify a benchmark in the mining operation to identify that <br />source. <br />2) It is our understanding that the applicant, Montrose County, is required to provide your <br />office with an affidavit of material source as outlined above to serve for the reclamation <br />work to be performed in the future. That affidavit is enclosed herein. <br />3) The berm shown on the final reclamation map will consist of undisturbed native rock and <br />soil and is intended to prevent rocks, water or sediment from leaving the quarry site on the <br />east side of the project site and migrating downslope off the quarry property. Rock and soil <br />will be left in-situ to create this berm during the first phase of mining which is intended to <br />proceed from the cliff band westward. <br />I hope we have satisfactorily answered question or responded to your review comments. If <br />not, please contact me at (970) 497-8852. <br />Respectfully submitted, <br />lc=_? G <br />Daniel C. Quigley, PE <br />Civil Group Manager <br />Encl.: 1) Revised Site plan, dated April 4, 2011 <br />2) Affidavit of Material Source from Montrose County <br />Montrose County - Donley Rock Quarry PN 10-157-CIV <br />Response Letter to DRMS <br />Page 2 of 2