
The Reserve Mining Company was sued by the United States government in 1972 for polluting Lake Superior. The case, known as United States v. Reserve Mining Company, centred around the company's practice of disposing of taconite tailings, or waste, directly into Lake Superior. The waste was found to contain harmful asbestos-like fibres, which contaminated the drinking water of nearby communities. The lawsuit filed by the Environmental Protection Agency (EPA) and the Department of Justice sought to address the environmental and public health concerns arising from Reserve Mining's operations. The case resulted in a landmark decision, granting the EPA broader powers to regulate corporate pollution.
| Characteristics | Values |
|---|---|
| Name of Mining Company | Reserve Mining Company |
| Year Operations Began | 1955 |
| Owner | Armco Steel and Republic Steel |
| Location | Silver Bay, Minnesota |
| Number of Employees | 3,100 |
| Daily Waste Dumped in Lake Superior | 67,000 tons |
| Waste Composition | Taconite tailings, asbestos-like fibers, cummingtonite-grunerite |
| Year Sued | 1972 |
| Suing Entity | United States Department of Justice, Environmental Protection Agency |
| Ruling | Ordered cessation of waste dumping by 1980 |
| Outcome | Establishment of inland dumping ground for tailings |
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What You'll Learn

The Reserve Mining Company's operations
The Reserve Mining Company was a joint venture between Armco Steel and Republic Steel. It was one of the first taconite processing plants in Minnesota, opening in 1955 or 1956 in Silver Bay, on the North Shore of Lake Superior. The plant produced 6 to 10 million tons of pellets a year, extracting iron ore from taconite rock and dumping the leftover waste, or tailings, directly into Lake Superior.
The process of mining taconite involved crushing the rock, removing the iron ore, turning it into pellets, and then dumping the leftover waste into the lake. Initially, this waste was considered no more harmful than sand. However, by the late 1960s, concerns were raised about the environmental impact of these practices, particularly the pollution of Lake Superior and the drinking water supply of nearby communities.
A 1968 report by the Department of the Interior and state agencies concluded that Reserve Mining was polluting Lake Superior in violation of its permits. The report noted issues such as "green" water, trace metals, fish mortality, and the presence of asbestos-like fibres. This report sparked public concern and led to citizen groups fighting against the practice. Despite this, the company continued to dump nearly 67,000 tons of tailings into the lake daily, creating a flat expanse of land at the lake's shoreline.
In 1972, the United States government sued Reserve Mining Company, under the Rivers and Harbors Act of 1899, citing the company for violations of the Act and arguing that the tailings were killing fish and spoiling the lake as a freshwater source. The trial lasted over a year, with both sides relying on prestigious scientists to support their cases. In 1974, Judge Lord ruled that dumping the tailings into Lake Superior posed serious health and environmental threats and ordered the plant to shut down. However, Reserve Mining obtained a stay and continued operations while appealing the decision. It wasn't until 1980 that the company finally ceased disposing of tailings into the lake and began using an inland dumping ground instead.
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Pollution and health concerns
The Reserve Mining Company was sued over polluting Lake Superior, specifically regarding the discharge of taconite tailings into the lake. The pollution was found to have degraded water quality, causing issues such as "green" water, fish mortality, and the presence of harmful asbestos-like fibres. This led to drinking water contamination in nearby communities, including Duluth, which necessitated costly filtration upgrades. The waste material was also found to contain cummingtonite-grunerite, a substance found in asbestos, which is a known carcinogen. As a result, the pollution posed serious health risks to the surrounding communities, including the potential for cancer and other health problems if the contaminated water was ingested.
The lawsuit filed against the Reserve Mining Company in 1972 by the Environmental Protection Agency (EPA) and the subsequent trial revealed the extent of the pollution and its impact on the environment and public health. The trial lasted over a year and resulted in a landmark decision, with Judge Lord ordering the plant to shut down in 1974. This decision gave the EPA broader powers to regulate corporate pollution, a practice that was unheard of before the lawsuit.
The pollution of Lake Superior by the Reserve Mining Company highlights the complex interplay between industrial operations, environmental stewardship, and community health concerns. The company's mining activities, which included dumping nearly 67,000 tons of tailings into the lake daily, had far-reaching consequences for the lake's ecosystem and the communities that relied on it for their water source.
While the lawsuit against the Reserve Mining Company was a significant step in addressing the pollution and health concerns, Lake Superior continues to face environmental challenges. The lake has been designated as a Great Lake Area of Concern, with issues such as invasive species, habitat loss, and the presence of toxic contaminants. These challenges are a result of various factors, including industrial activity, agricultural practices, and shoreline development.
In recent years, there have been efforts to address these ongoing environmental and health concerns. Rehabilitation of critical aquatic habitats is underway, and several wildlife and fish species have been restored. Additionally, the Clean Water Act and the creation of the U.S. Environmental Protection Agency (EPA) have helped set goals for reducing pollution in Lake Superior and other Great Lakes. However, continuous monitoring and efforts are necessary to protect the fragile ecosystem of Lake Superior and ensure the health and safety of the surrounding communities.
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Legal battles and outcomes
The Reserve Mining Company was sued for polluting Lake Superior. The case, United States v. Reserve Mining Company, was prompted by a 1968 report by the Department of the Interior and state agencies, which concluded that the company was polluting the lake in violation of its permits. The report noted concerns about "green" water, trace metals, fish mortality, asbestos-like fibres, and lake eutrophication. The waste material, or "tailings", was initially considered no more harmful than sand. However, by the late 1960s, local environmental groups, commercial fishermen, and sport-fishing groups began to complain that the tailings were killing fish, clouding the water, and spoiling Lake Superior as a freshwater source.
On February 17, 1972, the Department of Justice filed a lawsuit against the Reserve Mining Company in the U.S. District Court in Minneapolis. The trial, which lasted over a year, revealed that drinking water in nearby communities, including Duluth, was contaminated with asbestos fibres, necessitating costly filtration upgrades. The key issue of the trial became public health, with the plaintiffs arguing that the emissions were harmful, and the company arguing that they were not. Reserve Mining also argued that a plant shutdown would wreak economic havoc in the area, and that if the government wanted a cleanup, they should pay for it.
In April 1974, Judge Miles Lord ruled against Reserve Mining, ordering the plant to shut down immediately. However, a series of appeals kept the plant running and allowed the company to continue disposing of tailings in Lake Superior until 1980, when an inland dumping ground was established. The ruling in United States of America v. Reserve Mining Company was considered a landmark decision, as it gave the EPA broader powers to regulate corporate pollution.
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The economic impact
The pollution of the lake and the subsequent lawsuit had a major impact on the company's operations and the local economy. The lawsuit, filed by the US government, sought to address the company's violation of the Rivers and Harbors Act of 1899 by disposing of harmful waste, or "tailings", into the lake. The waste contained asbestos-like fibres, leading to contaminated drinking water in nearby communities, including Duluth.
The trial, which began in 1973, resulted in a ruling against the company in 1974, with Judge Miles Lord ordering the immediate closure of the plant. This decision was met with dismay by the company's employees and their families, as it threatened their livelihoods. The company obtained a stay and continued its operations, but faced significant legal battles and fines.
The pollution and subsequent efforts to address it also had financial implications for the communities and governments involved. The contaminated drinking water necessitated costly filtration upgrades in affected communities. Additionally, the governments involved in the lawsuit sought to address the issue of who should bear the financial burden of cleaning up the pollution caused by the company.
Overall, the economic impact of the pollution of Lake Superior by the Reserve Mining Company was complex and multifaceted, affecting the company, its employees, local communities, and governments. It highlighted the challenging balance between economic activities and environmental protection, with the resulting regulations aiming to strike a sustainable balance between the two.
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The EPA's role
The Environmental Protection Agency's (EPA) role in the case of the Reserve Mining Company's pollution of Lake Superior was significant and resulted in a landmark decision that expanded the agency's powers to regulate corporate pollution.
The EPA first got involved in the case in 1970 when it took over from the Department of the Interior, which had issued a report in 1968 highlighting the pollution issues caused by the company's discharge of taconite tailings into the lake. The EPA then filed a lawsuit in federal court in 1972 to stop the discharge, arguing that it violated the Rivers and Harbors Act of 1899.
The trial, which began in 1973, revealed that the asbestos-like fibers in the ore were present in the drinking water of nearby communities, including Duluth, and that the water contamination posed serious health risks. In 1974, the presiding judge, Miles Lord, ruled against Reserve Mining, ordering the company to cease discharges and shut down the plant immediately.
However, Reserve Mining obtained a stay from a panel of circuit court judges, allowing the company to continue operations and discharges into the lake until it could find a new disposal method. The company continued to face significant legal battles and fines, and by 1980, it finally stopped disposing of tailings into Lake Superior and began using an inland dumping ground.
The EPA's involvement in this case demonstrated its commitment to protecting public health and the environment, and the outcome of the case strengthened its authority to hold corporations accountable for their environmental impact. The case also brought attention to the complex interplay between industrial operations, environmental stewardship, and community health concerns, setting a precedent for future environmental litigation and regulation.
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Frequently asked questions
The Reserve Mining Company was sued for polluting Lake Superior.
The company was sued for dumping 67,000 tons of taconite tailings into Lake Superior daily, polluting the water and killing fish. The waste was also found to contain harmful asbestos fibres, which contaminated the drinking water of nearby communities.
The lawsuit resulted in a court order for the Reserve Mining Company to cease discharges into Lake Superior. The company was allowed to continue operations temporarily while it worked on finding an alternative disposal method. By 1980, the company began depositing waste in an inland pond, bringing an end to the dumping of tailings into the lake.







































