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EPA Proposes New CCR Rule Flexibility - Site-Specific Permitting and Dewatering Exemptions

EPA proposed significant changes to federal Coal Combustion Residuals (CCR) regulations on April 13, 2026, creating new flexibility for site-specific permitting decisions. The proposed rule would exempt CCR dewatering structures from current regulations and establish alternative compliance pathways for groundwater monitoring, cleanup levels, and closure requirements at legacy CCR surface impoundments and management units.

The proposal addresses long-standing industry concerns about one-size-fits-all regulatory approaches at diverse CCR sites across the country. Here is what the current framework looks like and what it means for consultants working on coal ash remediation projects.

Proposed Changes to CCR Regulations

The EPA proposal includes several key modifications to existing CCR rules:

  • Dewatering structure exemption: CCR dewatering structures would be exempt from current CCR disposal regulations
  • Site-specific monitoring: Alternative groundwater monitoring point compliance locations based on site conditions
  • Flexible cleanup levels: Site-specific corrective action cleanup levels instead of uniform federal standards
  • Alternative closure: Modified closure requirements and timeframes based on site characteristics
  • CCR extraction allowance: Provisions for extracting CCR materials during remediation activities

What this means in practice: Sites with unique hydrogeologic conditions, space constraints, or other technical challenges could pursue alternative approaches through the permitting process rather than meeting uniform federal requirements.

How This Affects Remediation Projects

RCRA Corrective Action Sites

Sites with both RCRA corrective action and CCR obligations could benefit from coordinated cleanup approaches. The site-specific pathway could align CCR remediation with broader facility cleanup goals and timelines.

Groundwater Monitoring Programs

Current CCR rules require specific monitoring well locations and compliance points. The proposed flexibility would allow monitoring networks designed around actual groundwater flow patterns and potential receptor locations.

Closure Planning

Standard CCR closure requirements often conflict with site redevelopment plans or ongoing operations. Alternative closure provisions could accommodate phased approaches or modified engineering controls.

Ohio note: Ohio has several large CCR sites subject to federal rules. The proposed flexibility could particularly benefit sites along the Ohio River where space constraints and industrial operations complicate standard closure approaches.

What to Watch

EPA has not announced a comment period end date or final rule timeline. The proposal requires public comment before finalization, typically 60-90 days.

Key implementation questions remain unresolved:

  • Specific criteria for qualifying for site-specific alternatives
  • State program approval requirements for alternative pathways
  • Integration with existing RCRA corrective action processes
  • Cost-benefit analysis requirements for alternative approaches

What to Do Now

If you work on CCR sites:

  • Review current site monitoring and closure plans against proposed flexibility provisions
  • Identify sites where standard requirements create technical or economic challenges
  • Prepare to submit detailed technical justifications for site-specific alternatives
  • Coordinate with RCRA corrective action programs where both apply

The proposed rule could significantly change how CCR remediation projects are designed and implemented. For current CCR regulatory requirements, see our program overviews. For groundwater monitoring procedures at contaminated sites, review our field guides.

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