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rt 2!D <br />APR halo <br />April 16, 2010 Diviric;;, .. <br />if <br />r.:ZO aad Saf ty <br />Janet Binns <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />RE: Northfield Mine <br />Permit No. C-2006-085 <br />Dear Ms. Binns, <br />Please accept the following narrative and supporting documents as response to <br />Northfield Mine TR-01 Adequacy Review of March 5, 2010. <br />Items: Page two of the Exhibits Table of Contents includes Exhibit AL: Reclamation <br />Cost Estimate in Volume 3. Page 3.0-1 reflects inclusion of the bond estimate as an <br />exhibit in Volume 3 of the permit application. At the present time, Northfield accepts <br />the proposed bond amount. <br />Item 2: Map 7, Mine Plan once again shows the location of the cliffs as previously <br />shown on approved versions, along with a revision date. <br />Item 3: Page 2.05.3-19 was edited to reflect completion of the core sample <br />collection and analysis for geochemical data. <br />Item 4: As directed, The Drainage and Sediment Control Plan language has been <br />revised to reflect that the design will be submitted to site engineers for final review <br />and approval prior to construction. <br />In addition, due to the change in disturbed acreage from 20 acres to 22.5 acres, the <br />second page of the permit application and page 2.03-13 are provided. <br />Please call me directly at 719-275-8951 if you have any question. <br />Respectfully submitted, <br />v tiw1 '?? ; I ti `? <br />Angela M. Bellantoni <br />r- IL-11 <br />1107 Main Street, Canon City, CO 81212 <br />www.envalternatives.com • e-mail: eai@bresnan.net <br />Phone: 719-275-8951 • Fax: 719-275-1715 <br />C//,\II