2009-02-23_REVISION - M1988044 - Laserfiche WebLink

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7-1?V51 RECEIVED TECHNICAL REVISION COAL CREEK SAND RESOURCE FEB 2 3 Z009 M-1988-044 pion of Reciam bon, SCHMIDT CONSTRUCTION COMPANY Mk*V and Safety Purpose: This revision adjusts the total area to be mined and the actual areas to be mined to comply with agreements made with the Colorado Board of Land Commissioners and Arapahoe County. The revision does not add affected land to the land previously approved, but does remove some land from the approved affected land. To date, no disturbances have been created in the permit amendment area. History: When the amendment was approved, four areas were identified as being included in the land to be affected. However, no local government approval had been provided at that time. In the course of obtaining local government approval, many issues arose that have been addressed. As a result of resolving the issues raised, an agreement was reached with Arapahoe County and approved by the State Land Board that would limit the amount of disturbance to a defined amount of acreage. These agreements limited the affected land in the amendment area to a maximum of 300 acres. These acreages were defined on an Agreement Features Map which is included in this revision. New Affected Land Areas: All of the new affected land areas are included within the four originally approved areas. These included areas IU, 2U, 1L, and 2L. Each of these areas have been redefined with respect to the boundary of the affected land so as to provide a maximum of 300 acres of affected land within the amendment area. These changes have no influence on any mining areas in the previously permitted area. The purpose of defining these areas so precisely was to accommodate a belief that a particular species of rare skipper (a butterfly group) might migrate through this area. To date no skippers of this species have ever been seen, but being rare that is not surprising. Also, no actual searches have ever been done to verify this species of skipper actually occurs here. Following are the various effects of the redefinition of the affected land areas. Area 1L: Virtually all of Area 1L has been removed from the affected land. The only area still included is a narrow strip along the eastern edge of this area that may be included in the footprint of a future dam to be used for water storage for Rangeview. Area IU: No changes will occur in this area. Area 2U: Area 2U has been limited to a much smaller footprint. Area 2L: The land included in this area has been reduced to a defined area that is somewhat smaller than the original area. Much of this area will be within the currently defined highwater level of the proposed reservoir. In all cases, the affected land has been limited to those locations that extensive exploration identified as potentially containing the best sand resources. Technical Revision - February 2009 M-1988-044 Page 1 of 2