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Morton Lakes DRM&S Permit # M-2008-082 TR-005 <br /> Overview of Morton Lakes Technical Revision (TR-005) <br /> On March 6, 2017 the Colorado Division of Reclamation, Mining & <br /> Safety (Division) approved Ready Mixed Concrete Company's (RMCC) <br /> 112c mining and reclamation permit amendment for the Morton Lakes Pit <br /> (DRM&S Permit # M-2008-082). The purpose of this Technical Revision <br /> (TR-005) requests a minor revision to mining Stage 6 (B) of the amended <br /> Morton Lakes Mining Stages. <br /> RMCC recently completed mining Stage 6 (B), located adjacent to and <br /> immediately north of Stage 6 (A), south of Colorado Highway 52. Under the <br /> current mining plan for Stage 6 (B), RMCC proposed to temporarily <br /> stockpile sand and gravel on the pit floor prior to reclaiming this stage for <br /> developed water storage. RMCC is now seeking DRMS approval for TR- <br /> 005 by which the company will install an earthen berm between Stages 6 (A) <br /> and 6 (B) in order to convert Stage 6 (B) into a temporary (5 Acre) <br /> groundwater recharge pond to address the water levels in the A&W well (see <br /> revised Exhibit "D" enclosed). <br /> The earthen berm will have a 25 foot top width, a depth of 25 feet with <br /> 3:1 side slopes. It will be constructed using onsite stockpiled over burden. <br /> Upon completion of all mining activities in stage 6 the berm will be removed <br /> and used for final reclamation. <br /> The current DRMS approved reclamation plan for stages 6 (A&B) will <br /> remain unchanged, namely developed water storage. <br /> March 15, 2018 1 <br />