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Alternative A:No Action <br /> Under the No Action Alternative, the mining activity would continue for about 5 to 8 years, and <br /> reclamation of some areas in the quarry would be implemented according to the base reclamation plan <br /> already permitted by the Division of Minerals and Geology(DMG). The Pikeview Quarry produced, <br /> on average, 1,115,000 tons of limestone per year. <br /> Alternative B: The Proposed Action <br /> Under the proposed action,the head wall on the western boundary of the quarry would be cut back <br /> onto National Forest System land and reclaimed in three phases: <br /> 1) Pre-production, production, and initial fill operations in the National Forest System <br /> lands. <br /> 2) Production and reclamation in both forest lands and in currently permitted areas; and <br /> 3) Production and reclamation in private lands already permitted. Part of the reclamation <br /> phase would be implemented concurrently with the production phase. The purpose and <br /> need for this proposed project would be to mitigate visual impacts that currently exist <br /> and to reduce potential slope instability hazards in the future. <br /> This alternative would also allow the quarry to remove approximately 1,900,000 tons of additional <br /> limestone(about 1,056,000 tons of saleable limestone for concrete and asphalt rock,and about <br /> 844,000 tons for road base)from private land that would not otherwise be accessible because of slope <br /> instability problems. The production rate would remain the same and the life of the mine would be <br /> extended to 12 years (the last two years would only include reclamation activities). <br /> Alternative C: Enhanced Reclamation without Layback <br /> Under the enhanced reclamation without layback alternative,enhanced reclamation would occur in <br /> addition to the base reclamation, and no federal lands would be affected. This alternative would not <br /> allow for the reclamation of steep slopes. Instead,topsoil would be accumulated on existing slopes to <br /> provide relative stabilization. <br /> Under this alternative,the quarry would have the same limestone production as under Alternative A. <br /> Relevant Policy <br /> The Council on Environmental Quality National Environmental Policy Act(NEPA)requirements(40 CFR <br /> 1502.9(c))and Forest Service NEPA implementing procedures(FSH 1909.15, Section 18)require that if <br /> new information or changed circumstances relating to the environmental impacts of a proposed action come <br /> to light after a decision has been made and prior to implementation,the responsible official should review <br /> the information to determine its importance. If the new information or changed conditions falls within the <br /> scope of the environmental analysis conducted for the decision, will not affect the quality of the human <br /> environment in a significant manner or extent not already considered,and will not result in an uncertain <br /> environmental impact,then no revision or supplementation to the environmental document is required. If <br /> these conditions are not met,then supplementation is required. <br /> This supplemental information report(SIR) is not a NEPA document and does not satisfy the requirement of <br /> supplementation. This SIR will serve to summarize an interdisciplinary review of the changed conditions or <br /> new information and document the responsible official's determination as to whether a supplemental or <br /> revised Environmental Assessment is required. <br /> Description of Changed Conditions <br /> Pikeview Quarry SIR P a g e 12 <br />