The Trump administration's Environmental Protection Agency has proposed rescinding Obama-Biden era regulations that limit toxic heavy metal discharges from coal-fired power plants, a move environmental advocates warn could unleash hundreds of millions of pounds of contaminated wastewater into America's rivers and streams.
The proposal would eliminate 2024 regulations requiring coal plants to treat wastewater containing mercury, arsenic, and selenium—neurotoxins and carcinogens that leach from coal ash dumps into groundwater before flowing into waterways that serve as drinking water sources for tens of millions of Americans.
EPA Administrator Lee Zeldin justified the rollback by claiming the 2024 rule "misjudged the effectiveness and cost of the regulation" and forced plant closures during periods of high electricity demand driven by artificial intelligence data centers.
In climate policy, as across environmental challenges, urgency must meet solutions—science demands action, but despair achieves nothing. This regulatory reversal, however, represents the opposite of solutions-focused environmental policy: removing safeguards without addressing underlying public health risks.
The rescinded Biden-era regulations had required power plants to report groundwater contamination and treat polluted water before discharge. The EPA had projected these rules would reduce pollutant discharges by 660-672 million pounds annually and provide $3.2 billion in annual public health benefits, with household electricity costs increasing less than $3.50 yearly—a minimal economic burden for substantial health protection.
Environmental advocacy group Earthjustice condemned the proposal, warning it "would eliminate safeguards on hundreds of millions of pounds of wastewater with neurotoxins and cancer-causing contaminants." The toxic metals at issue—mercury, arsenic, and selenium—pose severe health risks even at low concentrations, particularly for children and pregnant women.
The contamination pathway flows from unlined, uncovered coal ash dumps where toxic metals leach into groundwater, then migrate into streams and rivers. Without treatment requirements, this contaminated water enters aquatic ecosystems and drinking water systems serving communities downstream from coal facilities.
