Court Tosses Mining Water Filters, Sparking Eco-Debate
Published Date: 11/28/2025
Rule
Summary
Starting January 27, 2026, new rules will remove the requirement that all water runoff from mining sites must pass through siltation structures. This change affects mining companies regulated by the Office of Surface Mining and is a response to a court decision that said the old rule wasn’t backed up well enough. No extra costs are expected, but the public can comment until December 29, 2025, before the rule takes effect.
Analyzed Economic Effects
2 provisions identified: 1 benefits, 0 costs, 1 mixed.
Siltation-Structure Requirement Removed
Starting January 27, 2026, the rule removes the parts of 30 CFR 816.46 and 817.46 that required all surface drainage from a disturbed mining area to pass through a siltation structure before leaving the permit area. The change explicitly affects mining companies regulated by the Office of Surface Mining Reclamation and Enforcement (OSMRE). The public may submit significant adverse comments by December 29, 2025, before the rule takes effect.
Best-Technology Requirement Still Applies
The rule leaves paragraph (b)(1) in 30 CFR 816.46 and 817.46, which continues to require use of the "best technology currently available" to prevent additional suspended solids in runoff. That paragraph may still require siltation structures in specific cases where they are the best technology.
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Key Dates
Department and Agencies
Related Federal Register Documents
2025-21443, Rescission of Fee Rates
The Office of Surface Mining is officially wiping away old coal fee rates that covered 2012 to 2021 because they’re outdated. New fee rates have been in place since October 1, 2021, and this rule makes it official starting January 27, 2026—unless folks speak up by December 29, 2025. This change mainly affects coal producers and keeps the fee system fresh and fair for years to come.
2026-16318, North Dakota Regulatory Program
North Dakota is updating its rules for surface mining to make things clearer and more efficient. These changes include new timelines for permits, creating a new Environmental Quality department, and shifting some duties to a new Water Resources department. The updates take effect on September 10, 2026, and affect anyone involved in mining permits and environmental oversight in the state.
2026-16136, Ohio Regulatory Program
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2026-14244, Montana Regulatory Program
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2026-14245, Montana Regulatory Program
Montana’s new mining rules let companies use smart predictions and real data to show they’ve cleaned up mining sites properly. The state can now keep some money back if certain pollution problems stick around. These changes kick in on August 14, 2026, affecting coal miners and the environment while making sure cleanup is done right.
2026-12484, Agency Information Collection Activities; 30 CFR 822-Special Permanent Program Performance Standards-Operations in Alluvial Valley Floors
The Office of Surface Mining wants to keep collecting info to make sure coal mining west of the 100th meridian doesn’t harm farming or water systems in alluvial valley floors. This renewal helps protect important land and water while mining happens. If you’re involved in mining or live nearby, you can share your thoughts by August 21, 2026—no new costs or big changes, just keeping the rules working smoothly.
Previous / Next Documents
Previous: 2025-21440, Backfilling and Grading
The government is officially removing an old, unused rule about how quickly and how far backfilling and grading must be done during surface mining. This change affects mining companies by clearing up outdated rules, with no new costs or deadlines added. The update takes effect January 27, 2026, unless people send in serious objections by December 29, 2025.
Next: 2025-21442, Certification and Noncoal Reclamation
Starting January 27, 2026, the government is updating rules to stop counting old, unused funds when giving money to States and Tribes for mining cleanup. This change affects States and Tribes that get money from the Office of Surface Mining and means the money they receive will be clearer and more accurate. If anyone has big concerns, they can speak up by December 29, 2025.