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Rodriguez, Mary <br />From:Stark, Jim <br />Sent:Wednesday, August 01, 2012 9:07 AM <br />To:DRMS-Coal-Admin <br />Subject:FW: DESERADO MR-152, 2ND ADEQUACY REVIEW – SEDCAD MODELING OF PONDS <br />Please scan into Deserado (C-1981-018) MR-152. Thanks. <br /> <br />From: Zuber, Rob <br />Sent: Monday, July 30, 2012 2:37 PM <br />To: Stark, Jim <br />Subject: DESERADO MR-152, 2ND ADEQUACY REVIEW – SEDCAD MODELING OF PONDS <br /> <br />Jim – <br /> <br />I have reviewed the responses of Blue Mountain Energy to our first adequacy review of MR-152 (letter from Scott <br />Wanstedt dated July 18, 2012 and received July 26, 2012). They have addressed all of my concerns, but I do have a <br />question for Scott: Why does the emergency spillway for the Last Chance Pond not have riprap or other armoring? This <br />issue did not arise before because they had not provided any detail on this spillway. <br /> <br />Thanks, <br />Rob <br /> <br />Rob Zuber, P.E. <br />Environmental Protection Specialist <br /> <br />Colorado Department of Natural Resources <br /> <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Phone: 303.866.3567 x8113 <br /> <br />1 <br />