EPA Proposes Weakening Federal Coal Ash Disposal Regulations

The United States Environmental Protection Agency proposed a sweeping overhaul of federal regulations governing the disposal of coal combustion residuals, known as coal ash, on April 9, 2026. The proposal seeks to ease groundwater monitoring standards, roll back requirements for the cleanup of entire coal properties, and expand the beneficial use of ash in construction materials like cement.

EPA Administrator Lee Zeldin stated the revisions aim to restore American energy dominance and accommodate unique facility circumstances. The new framework expands the authority of states and regulators to grant exemptions from national standards, provided the agency determines the action poses no reasonable probability of adverse effects on human health and the environment. These changes reverse stringent rules implemented under the Biden administration designed to prevent heavy metals such as mercury, lead, and cobalt from contaminating groundwater.

The coal industry, represented by the Utility Solid Waste Activities Group, welcomed the shift away from a one-size-fits-all regulatory framework, arguing that previous mandates increased costs and threatened plant viability. Conversely, environmental organizations including the Southern Environmental Law Center and Earthjustice condemned the move. They argue that removing these protections allows toxic pollutants to leach into surrounding waters, creating a daily pollution threat to nearby residents.