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CERTIFIED MAIL <br />RETURN RECEIPT NO. 7010 0780 0001 2893 2011 <br />September 22, 2010 <br />Mr. Jim Dupler AGGREGATE <br />Division of Reclamation, Mining and Safety INDUSTRIES <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Re: Permit No. M-1977-436, Brighton Mine - 112c Annual Report and Map <br />Dear Jim: <br />Enclosed is Check No. 408208 in the amount of $791.000, the annual report form and a drawing <br />for the report year ended August 28, 2010 for the above-referenced permit. During the permit <br />year ended August 28, 2010, mining proceeded in areas previously disturbed and in previously <br />undisturbed areas of the central cell. Reclamation activity during the year included additional <br />backfilling and sloping along west boundary of the south and central cells and additional <br />backfilling and sloping along the east boundary of the south cell. The north pond continues to be <br />backfilled with overburden and wash fines. <br />A leak test for the slurry wall that was constructed in 2007 was conducted by TetraTech in early 2010. A <br />report of the test was submitted to and subsequently approved by the Colorado Division of Water <br />Resources. A copy of the approval letter together with a copy of the construction observation report for <br />the slurry wall will be submitted with a request for bond reduction by separate letter. <br />Mining will continue in previously disturbed areas during the current permit year. Reclamation <br />activity projected for the current permit year includes additional backfilling and sloping around <br />the central cell and the north lake/wetland area. <br />If you have any questions or need additional information, please call me at (970) 396-5252. <br />Very truly yours, <br />Connie N. Davis <br />Land Advisor <br />Enclosures <br />cc: Aggregate Industries, <br />Aggregate Industries <br />West Central Region, Inc. <br />1707 Cole Blvd., Suite 100 <br />Golden, CO 80401 <br />WCR, Inc. -File 37.09.03 <br />Connie N. Davis, Land Advisor <br />P. O. Box 337231, Greeley, CO 80633 <br />Phone: (970) 396-5252 <br />Telephone: 303-985-1070 An Equal Opportunity Employer