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<br />DIVISION OF MINERALS AND GEOLOGY <br />Depanmenl of Natural Resources <br />1313 Sherman 8i., Room 215 <br />Denver, Colorado 80203 <br />Phone 1J031866~3567 <br />FA%: Q031 83?8106 <br />April 29, 1996 <br /> <br />III IIIIIIIIIIIIIII~F <br />999 <br />Mr. Ken Jacobson DENSER <br />Western Colorado Regulatory Office ~F~CE <br />U.S. Army Engineer District, Sacramento <br />402 Rood Avenue, Room 142 <br />Grand Junction, CO 81501-2563 <br />RE: Response to Public Notice No. 199475349, SANDCO, Inc., <br />Willow Bend Pit, Colorado Reclamation Permit No. M-86-165. <br />Dear Mr. Jacobson: <br />I~~ <br />DEPARTMENT' OF <br />NATURAL <br />RESOURCES <br />Roy Romer <br />Governor <br />lames 5. Lochhead <br />Executive DueUOr <br />Michael B. LOng <br />Division Director <br />The Colorado Division of Minerals and Geology (DMG1, Durango field offi~e, has reviewed <br />the project description for the Willow Bend Pit, public notice number 199 75349, and <br />offers the following comments for consideration. <br />DMG has not identified any major concerns with the mine plan proposed n the project <br />description for the Willow Bend Pit. One of the key issues to be address d by the <br />operator regards clarification of the maximum depth of extraction in relati n to the <br />channel bottom elevation. Current depth restriction for the Willow Bend it is defined as <br />being the surface elevation of the river at low flow season. Additionally, DMG will <br />probably require development and implementation of an appropriate river hannel survey <br />and continuation of a monitoring program to verify that no significant ad rse impacts to <br />river channel stability are occurring as a result of gravel extraction activiti s. <br />DMG's experience with SANDCO, Inc., indicates that the operator compli s with <br />Colorado reclamation statutes. Mining activities conducted by SANDCO, Inc., have <br />continuously exhibited a cooperative attitude with regulatory requirement and an <br />awareness of environmental responsibility. <br />Please contact me at the DMG field office in Durango, 1474 Main Avenu Room 207, <br />Durango, CO 81301-5182, phone (970) 247-5062, if I can be of greater ervice. <br />Sincerely, <br />Wallace H. Erickson <br />Environmental Protection Specialist <br />