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HART ENVIRONMENTAL <br /> P.O. Box 1 303 Boulder, Colorado 80306 Phone. 303.444.6002 <br /> April 15, 2016 <br /> Mr. Eric Scott <br /> Division of Reclamation, Mining and Safety <br /> Colorado Department of Natural Resources <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> Re: Technical Revision(DRM&S Permit#M-2008-082) Morton Lakes <br /> Dear Eric: <br /> The purpose of this Technical Revision is to change the Morton Lakes Mining Stage 5 to <br /> Mining Stage 2 and to change the current reclamation of Stage 5 (2) from a sealed pit to wildlife <br /> habitat. Following excavation of Stage 5 (2)this stage will be backfilled with wash fines from <br /> the Morton sand and gravel processing plant and seeded with the enclosed seed mix. <br /> As we recently discussed, Ready Mixed Concrete Company(RMCC)proposes to use Stage <br /> 2 to dispose of sand and gravel wash fines that otherwise would be pumped, over the South <br /> Platte River, to a disposal site on the east side of the river. <br /> Enclosed with this letter please find the following: <br /> 1. Request for Technical Revision(TR) Cover Sheet; <br /> 2. An Overview of the requested TR; <br /> 3. Revised Exhibits"D"and "F"with notes related to the requested TR; <br /> 4. The proposed seed mix for revegetation of Stage 2; <br /> 5. A check(#5078) in the amount of$216.00 to cover the required TR fee. <br /> If you have any questions regarding this requested Technical Revision please do not <br /> hesitate to call me at(303)444-6602. <br /> Sincerely, <br /> • 410" .4.4rAP <br /> Michael J. ( ike)Hart <br /> Encl. <br /> Copied Electronically to: Bill Timmons, GM, RMCC Aggregates <br /> �l'cttat:.h I;ar:krtt <br /> Envrtc,Imolial.\1.rn,a)ement <br /> Land Cis, <br /> Re,.la rna tt cr: <br /> Permit; a K Zomr.:r <br />