Troubled Waters

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How Mine Waste Dumping is Poisoning Our Oceans, Rivers, and Lakes

Troubled Waters: How Mine Waste Dumping is Poisoning Our Ocean, Rivers, and Lakes is an investigative report from Earthworks and MiningWatch Canada that documents how mining companies are using the world’s waterways as dumping grounds for their toxic mine wastes.

These mine wastes, or tailings, can contain up to three dozen dangerous chemicals, including arsenic, lead, mercury, and cyanide.

Each year, mining companies dump over 180 million tonnes of these hazardous mine wastes into rivers, oceans, and lakes – that’s more than 1.5 times the amount of waste that US cities send to landfills each year.

The Troubled Waters report examines the impacts of ten corporations’ waste dumping practices in water bodies in 11 regions around the world, including those in Papua New Guinea, Turkey, Canada, Indonesia, United States, and Norway.

The report calls on mining companies to stop using our oceans, rivers, and lakes as dumping grounds for their toxic wastes. The report recommends additional steps that must be taken by mining companies to protect people and ecosystems from irresponsible aquatic waste disposal, including dry stacking and backfill, where safe, and adopting measures to produce less waste.

For More Information

Map of mines dumping wastes in water

View Bodies of Water Most Threatened By Dumping in a larger map

Major mining companies dumping mining waste in water

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Fly River system, Papua New Guinea

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Canadian lakes

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Otomina and Ajkwa Rivers, West Papua, Indonesia

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Canadian lakes

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Luise Harbor, Papua New Guinea

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Senunu Bay, Indonesia

Canadian lakes

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Otomina and Ajkwa Rivers, West Papua, Indonesia

Canadian lakes

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Canadian lakes

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Canadian lakes

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Canadian lakes

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