HF5159

Nonferrous mining prohibited if sulfate levels increase in waters within the Rainy River headwaters, and penalties established.
Legislative Session 94 (2025-2026)

AI Generated Summary

Purpose

  • To protect the Boundary Waters Canoe Area Wilderness (BWCAW) and the Rainy River headwaters from mining and peat harvesting. The bill would ban nonferrous mining in these areas unless a federal national emergency and legislative approval allow exceptions, and it would require water quality monitoring with results publicly available.

Main Provisions

  • Definitions and scope:
    • Defines Boundary Waters Canoe Area Wilderness (BWCAW) and Rainy River headwaters.
  • Wilderness protection and mining bans:
    • Within the BWCAW, state-owned or administered lands cannot be leased for mineral exploration or mining, and no state permits or leases may be issued for mining or related activities, except in cases of Congress-declared national emergencies with legislative approval after an investigation.
    • Acquired state lands within the BWCAW are designated as state wilderness.
  • Rainy River headwaters and sulfate limits:
    • The Department of Natural Resources (DNR) may not issue a permit to mine nonferrous metallic minerals in the Rainy River headwaters unless:
    • The expected increase in sulfate in affected surface water or groundwater is not more than 0 parts per million (ppm).
    • If sulfate would increase by more than 0 ppm, the permit cannot be issued.
    • Any permit must require monitoring of water quality in affected waters, and the monitoring results must be made publicly available on the Pollution Control Agency’s surface water data site.
  • Peat harvesting:
    • Peat harvesting is prohibited in the BWCAW, with exceptions only in national emergencies declared by Congress and with legislative approval after investigation by the DNR.
  • Investigation and decision process:
    • In a national emergency, the DNR must investigate reasonable alternatives to exploitation of resources in the BWCAW. If reasonable alternatives exist, no permit will be issued. If no alternatives exist and resources are needed, a permit may be issued with legislative approval.

Changes to Existing Law

  • Codifies strict protections for mining and peat harvesting in the BWCAW and clarifies restrictions on state lands in that area.
  • Introduces a sulfate-based hurdle for any nonferrous mining in the Rainy River headwaters, requiring zero or no expected sulfate increase and public reporting of water-quality monitoring.
  • Adds a requirement for a formal investigation of alternatives during national emergencies to determine whether exploitation is truly needed.
  • Aligns state wilderness designations with the BWCAW by classifying acquired state lands within the BWCAW as state wilderness.

Definitions and Key Terms Included

  • Boundary Waters Canoe Area Wilderness (BWCAW)
  • Rainy River headwaters
  • nonferrous mining / nonferrous metallic minerals
  • sulfate (in surface water and groundwater)
  • parts per million (ppm)
  • surface water data / Pollution Control Agency surface water data access site
  • water quality monitoring
  • state-owned lands / acquired lands / state wilderness
  • peat harvesting
  • national emergency (as declared by Congress)
  • Department of Natural Resources (DNR)

Relevant Terms

Boundary Waters Canoe Area Wilderness BWCAW Rainy River headwaters nonferrous mining nonferrous metallic minerals sulfate ppm (parts per million) surface water groundwater water quality monitoring Pollution Control Agency surface water data access site peat harvesting state-owned lands acquired lands state wilderness National Emergency Congress Department of Natural Resources (DNR) Minnesota Statutes 84.523 BWCAW boundaries (federal/regulatory references)

Bill text versions

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Actions

DateChamberWhereTypeNameCommittee Name
May 17, 2026HouseActionIntroduction and first reading, referred toEnvironment and Natural Resources Finance and Policy
May 17, 2026HouseActionAuthors added
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Citations

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Progress through the legislative process

17%
In Committee

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