EPA Moves to Protect Bristol Bay Fishery from Pebble Mine
Agency action begins process to prevent damage to world’s largest sockeye salmon fishery
The U.S. Environmental Protection Agency (EPA) is initiating a process under the Clean Water Act to identify appropriate options to protect the world’s largest sockeye salmon fishery in Bristol Bay, Alaska from the potentially destructive impacts of the proposed Pebble Mine.
The Pebble Mine has the potential to be one of the largest open pit copper mines ever developed and could threaten a salmon resource rare in its quality and productivity. During this process, the U.S. Army Corps of Engineers cannot approve a permit for the mine.
This action, requested by EPA Administrator Gina McCarthy, reflects the unique nature of the Bristol Bay watershed as one of the world’s last prolific wild salmon resources and the threat posed by the Pebble deposit, a mine unprecedented in scope and scale. It does not reflect an EPA policy change in mine permitting.
“Extensive scientific study has given us ample reason to believe that the Pebble Mine would likely have significant and irreversible negative impacts on the Bristol Bay watershed and its abundant salmon fisheries,” McCarthy said. “It’s why EPA is taking this step forward in our effort to ensure protection for the world’s most productive salmon fishery from the risks it faces from what could be one of the largest open pit mines on earth. This process is not something the Agency does very often, but Bristol Bay is an extraordinary and unique resource.”
EPA is basing its action on available information, including data collected as a part of the agency’s Bristol Bay ecological risk assessment and mine plans submitted to the Securities and Exchange Commission. Dennis McLerran, EPA Regional Administrator for EPA Region 10, sent letters to the U.S. Army Corps of Engineers, the State of Alaska, and the Pebble Partnership initiating action under EPA’s Clean Water Act Section 404(c) authorities.
“Bristol Bay is an extraordinary natural resource, home to some of the most abundant salmon producing rivers in the world. The area provides millions of dollars in jobs and food resources for Alaska Native Villages and commercial fishermen,” McLerran said. “The science EPA reviewed paints a clear picture: Large-scale copper mining of the Pebble deposit would likely result in significant and irreversible harm to the salmon and the people and industries that rely on them.”
This follows the January 2014 release of EPA’s “Assessment of Potential Mining Impacts on Salmon Ecosystems of Bristol Bay, Alaska,” a study that documents the significant ecological resources of the region and the potentially destructive impacts to salmon and other fish from potential large-scale copper mining of the Pebble Deposit. The assessment indicates that the proposed Pebble Mine would likely cause irreversible destruction of streams that support salmon and other important fish species, as well as extensive areas of wetlands, ponds and lakes.
In 2010, several Bristol Bay Alaska Native tribes requested that EPA take action under Clean Water Act Section 404(c) to protect the Bristol Bay watershed and salmon resources from development of the proposed Pebble Mine, a venture backed by Northern Dynasty Minerals. The Bristol Bay watershed is home to 31 Alaska Native Villages. Residents of the area depend on salmon as a major food resource and for their economic livelihood, with nearly all residents participating in subsistence fishing.
Based on information provided by The Pebble Partnership and Northern Dynasty Minerals, mining the Pebble deposit may involve excavation of a pit up to one mile deep and over 2.5 miles wide—the largest open pit ever constructed in North America. Disposal of mining waste may require construction of three or more massive earthen tailings dams as high as 650 feet. The Pebble deposit is located at the headwaters of Nushagak and Kvichak rivers, which produce about half of the sockeye salmon in Bristol Bay.
The Clean Water Act generally requires a permit under Section 404 from the U.S. Army Corps of Engineers before any person places dredge or fill material into wetlands, lakes and streams. Mining operations typically involve such activities and must obtain Clean Water Act Section 404 permits. Section 404 directs EPA to develop the environmental criteria the Army Corps uses to make permit decisions. It also authorizes EPA to prohibit or restrict fill activities if EPA determines such actions would have unacceptable adverse effects on fishery areas.
Now that the 404(c) process has been initiated, the Army Corps cannot issue a permit for fill in wetlands or streams associated with mining the Pebble deposit until EPA completes the 404(c) review process.
EPA has received more than 850,000 requests from citizens, tribes, Alaska Native corporations, commercial and sport fisherman, jewelry companies, seafood processors, restaurant owners, chefs, conservation organizations, members of the faith community, sport recreation business owners, elected officials and others asking EPA to take action to protect Bristol Bay.
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