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I.E <br />HART ENVIRONMENTAL <br />P.O. Box 1303 Boulder, Colorado 80306 Phone: 303.444.6602 <br />October 6, 2009 <br />Mr. Jared Ebert <br />Division of Reclamation, Mining and Safety <br />Colorado Department of Natural Resources <br />1313 ShermanStreet, Room 215 <br />Denver, CO 80203 <br />RE: Ready Mixed Aggregates, File No. M-1987-049 <br />Bromley Lakes 112 Permit Amendment 002- Mining Setbacks (Sorenson Memo r <br />10.02.09) <br />Dear Jared: <br />I was able to successfully download Allen Sorenson's October 2, 2009 <br />memorandum regarding his review of the proposed mining setbacks for Bromley Lakes <br />Amendment 002. Thanks for going to the effort of providing a digital copy to review. I <br />must say that I was surprised at size of the file. <br />Be that as it may, I have reviewed Allen's memo and don't see any real problems <br />regarding his recommended setback of 100 feet from Xcel's buried gas line along the east <br />side of Brighton Road. Presently, the mining setback from the gas line is approximately <br />110 feet. Regardless, I hope to have a signed agreement from Xcel before the end of the <br />month if not sooner. <br />Regarding the proposed mining setback from the McCanne Ditch (Ditch), Ready <br />Mixed Concrete Company (RMCC) is prepared to apply the 3:1 setback ratio, which <br />Allen Sorenson previously said was acceptable to the Division. Prior to relocation of the <br />Ditch, RMCC commits to a minimum mining setback of 81 feet, which is based on a pit <br />depth of 27 feet (27 x 3 = 81). This setback distance does not apply however to areas <br />adjacent to the Ditch which were previously mined under the original permit. To date, <br />RMCC has mined a 425 foot long section of Cell 3, adjacent to a section of the Ditch <br />originally permitted for relocation under the approved DRM&S permit. <br />If you have any questions regarding this letter please do not hesitate to give me a <br />call. <br />Cc: Bill Timmons, Ready Mixed Aggregates <br />Wetlands Banking <br />Enoironwental Atanagewent <br />Land Llse Planning <br />Reclamation Design <br />Pernutting & Zoning <br />Sincerely, <br />Michael J. (Mike) Hart <br />