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Musick, Jason <br />From: Kaldenbach, Tom <br />Sent: Thursday, July 16, 2009 12:59 PM <br />To: Musick, Jason <br />Cc: Hernandez, Daniel <br />Subject: Edna Mine, TR-48 <br />Jason, <br />I have reviewed Edna's proposal to eliminate hydrologic monitoring and concluded that the Trout Creek Sandstone <br />monitoring well could be eliminated from the monitoring program, based on its low potential for being impacted by <br />mining. <br />I cannot currently reach a conclusion on the elimination of alluvial ground water monitoring until we make a conclusion <br />regarding the elimination of surface water monitoring. <br />A conclusion on eliminating surface water monitoring cannot be reached until CWCD completes its on-going review. <br />1 have no adequacy comments for the operator. <br />Tom Kaldenbach <br />Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining and Safety <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />(303) 866-3567, ext. 8128