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Hernandez, Alysha <br />From: Zuber, Rob <br />Sent: Monday, April 02, 2012 1:12 PM <br />To: DRMS - Coal -Admin <br />Subject: FW: TR -94 question <br />Can you file this email? It is correspondence with Colowyo related to TR -94. <br />Let me know if you need anything else. <br />Thanks <br />Rob Zuber, P.E. <br />Environmental Protection Specialist <br />Colorado Department of Natural Resources <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Phone: 303.866.3567 x8113 <br />From: Tennyson, Thomas A ( CCC) [ mailto :Tony.Tennyson(a)riotinto.com <br />Sent: Monday, April 02, 2012 9:13 AM <br />To: Zuber, Rob; Blunt, Kurtis (CCC) <br />Subject: RE: TR -94 question <br />It is a standard internal practice for us to install contour ditches on all the steeper reclaimed slopes. We will install them <br />on this slope also. <br />Tony Tennyson <br />Environmental Engineer <br />Colowyo Coal Company <br />5731 State Highway 13, Meeker CO 81641 <br />T: 970.824.1532 F: 970.824.1598 <br />A Please consider the environment before printing this email. <br />From: Zuber, Rob [ mailto:Rob.Zuber(a)state.co.us <br />Sent: Friday, March 30, 2012 5:13 PM <br />To: Blunt, Kurtis (CCC); Tennyson, Thomas A (CCC) <br />Subject: TR -94 question <br />Kurtis and Tony— <br />Looking at your TR -94 application and supporting information, one question comes to mind. Do you think that you <br />should add contour furrows or ditches on this area? You are greatly increasing the length of the 3:1 slope (from 200' to <br />over 500' per one of your cross sections), and rills and gullies could be an issue. <br />