Rolnictwo i żywność · 2/28/2013
Forest Service
Omya California (Omya), a division of Omya Inc., has submitted the following applications: An Amended Plan of Operations and Reclamation Plan to the U.S. Department of Agriculture, Forest Service, San Bernardino National Forest (SBNF); and A Mining and Land Reclamation Plan Conditional Use Permit application submitted to the County of San Bernardino (County). Combined, these applications propose the expansion of the existing Sentinel and Butterfield Quarries. The existing permitted Sentinel and Butterfield limestone quarries are located on mining claims within the SBNF. Known limestone ore resources, within the proposed quarry expansions, will add an additional 20 years life to the Sentinel Quarry, add an additional 40 years life to the Butterfield Quarry, and will allow mining at both quarries to be extended until 2055. Depending on market demand, the combined Sentinel and Butterfield Quarries average ore production rates will be approximately 680,000 tons per year compared to the 3-year average between 2004-2006 of approximately 378,000 tons per year. Reclamation will occur concurrently with mining. The proposed expansion includes 48.7 acres of disturbance at the Sentinel Quarry