PolyMet Mine Proposal

PolyMet Mining Corporation has proposed a sulfide mine called the “NorthMet Project” between Babbitt and Hoyt Lakes, Minnesota.  This project proposes to develop an open-pit mine to extract copper, nickel and other metals.

PolyMet’s sulfide mine proposal is currently in a public objection period. Click here to send your objection.

PolyMet is a junior mining company headquartered in Vancouver, Canada. The company has never operated a mine before, and is backed financially by the Swiss company Glencore. Glencore has a significant financial stake in the company, and has an exclusive agreement to sell the mine’s metals on the global commodities market.

While PolyMet doesn’t have a track record to consider, Glencore does. The company was founded by Marc Rich, the financier embroiled in scandal and pardoned by President Bill Clinton. The company has been implicated in environmental disasters, labor violations, and human rights abuses around the world.

The Chairman of the Glencore board of directors is former BP CEO Tony Hayward, the man who was in charge when the Deepwater Horizon oil rig caused the largest oil spill in history in the Gulf of Mexico. He was made infamous for saying how he would “like his life back” while the water was being polluted and whole communities were being devastated by the spill.

In December 2013, the Minnesota Department of Natural Resources (DNR) published the “Supplemental Draft Environmental Impact Statement” for PolyMet’s proposed mine. The public submitted a record number of comments for an environmental review document in Minnesota, 58,000. 98% of these comments opposed the mine as proposed. The Final Environmental Impact Statement for PolyMet’s sulfide mine proposal was officially published on November 13th, 2015. 

What’s Going On?

  • The mine would be located near Babbitt and Hoyt Lakes, Minnesota
  • The mine site would be on land that is now part of the Superior National Forest that is comprised of high quality peatlands
  • The company proposes to excavate three enormous pits up to 696 feet deep and transport the ore by railcar to an old, dormant taconite processing plant 8 miles away that would be refurbished
  • The mineral rights are privately owned and have been leased by PolyMet
  • The company must acquire the surface lands in a land swap with the Forest Service. This has not yet happened, but its potential environmental impacts are analyzed in this draft record of decision published by the Forest Service
  • Excavated material not desired (waste rock) would be stored next to the pits in large, 20-story high piles
  • Processing waste from the plant (tailings) would be added to an existing tailings basin that is currently leaking polluted water
  • The plant site would produce copper and nickel “concentrates” and “precipitates” which would be transported out of state for further processing into useable metals
  • The mine and plant sites have a projected lifespan of 20 years
  • Two wastewater treatment plants to treat polluted water from the mine site and the tailings basin would operate when the mine is running and would continue operating after the mine closes. Treatment will be needed at the mine site for a minimum of 200 years and at the plant site for a minimum of 500 years.
  • The Partridge River curls around the mine site, and flows into the St. Louis River and then into Lake Superior
  • The Embarrass River runs adjacent to the plant site and flows into the St. Louis River and then into Lake Superior
  • Polluted groundwater from the mine site could flow north into the BWCAW watershed via Birch Lake after closure
  • The environmental impact statement is being analyzed by three “co-lead” government agencies: the Minnesota Department of Natural Resources, the U.S. Army Corps of Engineers, and the U.S. Forest Service. In addition, there are “cooperating” agencies that are also providing feedback on the mine plan: the U.S. Environmental Protection Agency, and several tribal governments

What’s the History of the PolyMet Mine Plan?

  • In October 2009, a Draft Environmental Impact Statement for the proposed PolyMet mine was released for public review and comment
  • In February 2010, the U.S. Environmental Protection Agency (EPA) gave the proposal its lowest ranking: Environmentally Unsatisfactory-Inadequate. The EPA gave many reasons, including: missing information, failure to address pollution problems, structural issues, and lack of financial assurance analysis. Many members of the public and environmental advocacy organizations also highlighted major flaws with the proposed mine plan
  • Following this input, the lead agencies decided to revise the mine plan in a “Supplemental Draft Environmental Impact Statement” (SDEIS)
  • This revised plan was released in December 2013 for public review and input
  • Over 58,000 comments were submitted by the March 2014 deadline, and over 98% of these comments opposed the mine proposal
  • As of June 2015, the agencies responsible for the PolyMet environmental review have released an internal, preliminary version of the “Final Environmental Impact Statement.” This internal version is not available for public review and comment.
  • In November 2015, the DNR issued the Final Environmental Impact Statement, and the U.S. Forest Service published the Draft Record of Decision for the land exchange.
  • In March 2016, the Minnesota DNR declared that the Final EIS was “adequate.”
  • In January 2018, the Minnesota DNR issued a draft Permit to Mine, which is now open for public comment through March 6, 2018.

What is the History of Sulfide Mining Elsewhere?

  • This kind of mining has never happened in Minnesota before, but in other states, it is associated with long-lasting water pollution
  • No sulfide mine has ever operated without polluting its nearby waters
  • The EPA identifies the hardrock mining industry (sulfide mining is a type of hardrock mining) as the largest toxic-waste producing industry in the U.S.
  • The sulfide ores that are excavated react with oxygen in the air and water from rain and other precipitation – and form sulfuric acid. This acid is harmful to organisms that live in water (fish, invertebrates, etc). It also leaches out toxic heavy metals in the rocks with which it comes in contact – metals harmful to people and to wildlife. This polluted discharge is often called “acid mine drainage,” and it can persist for hundreds, even thousands, of years
  • Minnesota Governor Mark Dayton visited the Gilt Edge Mine Superfund site in October 2015 to learn more about unfunded cleanup from sulfide mines.
  • The sulfide mining industry also has a long track record of financial irresponsibility. Many companies go bankrupt or fail to provide enough “financial assurance” – a damage deposit up front – to cover the costs of dealing with pollution. This has left some states and their taxpayers with hundreds of millions of dollars in liability