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Morton Lakes DRM&S Permit # M-2008-082 TR-004 <br /> Overview of Morton Lakes Technical Revision (TR-004) <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-004) requests a minor revision to the sequence of the amended Morton <br /> Lakes Mining Stages. <br /> Currently, RMCC is mining Stage 3 located east of the South Platte <br /> River. As Stage 3 mining progressed this spring, RMCC became concerned <br /> that they may run out of minable sand and gravel in Stage 3 before pit <br /> preparation is completed and Stage 4 can be mined. <br /> Therefore, RMCC is seeking DRMS approval for TR-004 by which the <br /> company will mine approximately seven (7) acres of Morton Stage 6 (see <br /> attached map). The portion of Stage 6 to be mined is located adjacent to and <br /> north of the area of Stage 6 (A) previously mined under TR-003. Once <br /> mined this portion of Stage 6 (B) will temporarily be used to stockpile <br /> processed sand and gravel on the pit floor. The reclamation of Stage 6 will <br /> remain unchanged, namely developed water storage. <br /> April 12, 2017 1 <br />