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Technical Resource Document: Extraction and Beneficiation of Ores and Minerals: Phosphate and Molybdenite
This report is one of a series of profiles of major mining sectors. It summarizes EPA site visits to phosphate and molybdenite mines and includes reports of EPA site visits to IMC Fertilizer's Four Corners (phosphate) Mine near Duette, Florida and Cyprus Minerals Corporation's Thompson Creek (molybdenite) Mine near Challis, Idaho. This document discusses the extraction and beneficiation activities at each site. It includes a description of mine operations, mine waste generation and management practices, and regulatory status on a site-specific basis; The information was gathered from State and Federal agency files, as well as observations made during the site visits.
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- Mine Site Visit: IMC Fertilizer's Four Corners (phosphate) Mine (PDF) (77 pp, 828K)
- Mine Site Visit: Cyprus Minerals Corporation's Thompson Creek (molybdenite) Mine (PDF) (63 pp, 540K)