Washington, DC and Pittsburgh, PA
Environmental Alert
(by Ben Clapp, Gary Steinbauer and Mackenzie Moyer)
On July 22, 2025, the U.S. Environmental Protection Agency (EPA) published a Direct Final Rule and a Companion Proposal in the Federal Register to extend certain compliance deadlines for coal combustion residual (CCR) management units (CCRMUs) regulated under EPA’s May 2024 Legacy CCR Rule, under which certain inactive CCR surface impoundments and landfills became subject to federal regulation under existing EPA CCR rules. The Direct Final Rule is effective on January 22, 2026, unless EPA receives adverse comments by August 21, 2025. Comments are also due on the Companion Proposal by August 21, 2025.
As described in detail in an earlier Babst Calland Environmental Alert, CCRMUs are inactive CCR landfills and other land-based disposal areas that had previously not been regulated under EPA’s CCR rules. Under the Legacy CCR Rule, facilities covered under the rule are required to conduct an extensive, two-part investigation known as a Facility Evaluation Report (FER) to determine whether CCRMUs are present and therefore subject to the groundwater monitoring, corrective action, closure, and post-closure care requirements in EPA’s CCR rules.
The Direct Final Rule allows facilities to submit both sections of the FER at the same time, provided that both reports are submitted no later than February 8, 2027. Facilities were initially required by the Legacy CCR Rule to submit Part 1 of the FER by February 9, 2026, and Part 2 of the FER by February 8, 2027. EPA is also extending the deadline for groundwater monitoring requirements (groundwater monitoring system installation, development of sampling program, and initiation of monitoring) for CCRMUs until August 8, 2029, from the original deadline of May 8, 2028, on the grounds that the original deadline did not provide sufficient time to come into compliance. …