EPA Proposes Changes to Coal Plant Leachate Wastewater Rules
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Table of Contents
The EPA is proposing to adjust wastewater standards for coal-fired power plants regarding a specific type of liquid waste known as unmanaged combustion residual leachate, or CRL. This action addresses flaws the agency found in its 2024 rule, which imposed strict limits on this wastewater. The EPA discovered that the previous cost analysis omitted the expense of capturing and pumping the leachate and relied on incomplete data about the wastewater’s composition.
Why it matters: This action affects coal-fired power plants that manage wastewater from coal ash landfills or surface impoundments. If finalized, the rule could adjust the technology standards these plants must meet for CRL, potentially altering compliance costs or treatment requirements. The EPA is using this process to correct cost estimates and incorporate new data on plant operations and retirements. The impact will depend on the final limits chosen and the specific circumstances of each facility.
Who it affects
- Coal-fired power plants that discharge unmanaged combustion residual leachate from coal ash landfills or impoundments.
The Environmental Protection Agency published this proposed rule in the Federal Register; readers should review the full document for specific cost estimates, technical options, and the comment deadline before relying on this summary.
Agency: Environmental Protection Agency
Source: Federal Register — read the official document