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~~~ V V V V CENGINEERING <br />August 31, 2007 <br />Mr. Byron Walker <br />Colorado Division of Reclamation, Mining & Safety <br />1313 Sherman St., Room 215 <br />Denver, CO 80203-2273 <br />RE: Edna Mine Third Quarter 2007 Impoundment Inspection Report <br />Dear Mr. Walker: <br />~~aiC~ Y G~ <br />= ? '112001 <br />~~, , <br />Division of ReGatnaff011. <br />Mining and Safely <br />This letter constitutes the Third Quarter 2007 Impoundment Inspection Report for the Edna Mine (C-80- <br />001). The Impoundment Location Map (Attachment A) details the location of each impoundment <br />inspected. Quarterly Pond Inspection Reports (Attachment B) document water level, sediment level, <br />outflow, and required maintenance cited per inspection. <br />The inspections were performed on August 21, 2007 by Field Inspector Troy Summers and have been <br />certified by Colorado Registered Professional Engineer Deidre Bennett. All structures were functioning <br />as designed at inspection. Minor maintenance including the clearing of vegetation at West Ridge Pond <br />and Center Ridge Pond will occur during the 2007 maintenance season. Repairs have been noted on the <br />appropriate Quarterly Pond Inspection Report and the 2007 Maintenance List (Attachment C). Should <br />you have any questions regarding this material, please contact me at your convenience. <br />Sincerely, <br />a~~.~~ <br />Beth Heesen, P.G. <br />Proj ect Manager <br />TNS <br />Attachments (A, B & C) <br />File: 99-144 <br />61 I Skyline Road - laram ie. Wy 82070 - (307) 742-0031 <br />FAX (307) 721-2913 - E-mail: infolarQwwcengineering.com <br />cc: Steve Leach <br />Edna Mine Permit <br />