Nonferrous mining prohibited if sulfate levels increase in waters within the Rainy River headwaters, and penalties established.

Summary

The bill amends Minnesota law to bar new non‑ferrous metal mining permits in the Rainy River headwaters unless the project will not raise sulfate levels in surface water or groundwater. It also requires continuous water‑quality monitoring, makes results publicly available, and sets a $500 million civil penalty for any permit violation. The measure applies to state‑owned lands and any state‑issued permits, with limited emergency exceptions.

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