On May 4, 2010, following significant revisions (reportedly at the behest of the Office of Management and Budget), the Environmental Protection Agency (“EPA”) released proposed regulations governing management of coal combustion residuals generated by coal fired power plants, commonly known as coal ash (the “Proposed Rule”). In Fall 2009, EPA indicated it would release the Proposed Rule by the end of 2009.
EPA has proposed two options for managing coal ash.
The first option would regulate coal ash as special waste under the Resource Conservation and Recovery Act’s (“RCRA”) hazardous waste provisions. Under this option, a comprehensive program of federally enforceable requirements for management and disposal of coal ash would be created. Measures would be adopted to phase out the wet handling of coal ash. Additionally, states would be authorized to develop a permit program or use the federally-established program. This option would include storage, manifest, transport, and disposal requirements for coal ash as well as mechanisms for corrective action and financial responsibility. Failure to comply would be subject to direct federal enforcement.
The second option would regulate disposal of coal ash under RCRA’s non-hazardous waste provisions. EPA would set performance standards for waste management facilities that handle coal ash. States that adopt their own coal ash management programs would be responsible for enforcing the rule and would have the option to establish a permit program. Surface impoundments built after the rule goes into effect would be required to have composite liners, but there will be no land disposal restrictions. Although citizen suits could be filed for failure to comply with the rule, this option does not provide for direct federal enforcement. This option also does not provide for any financial assurances, but EPA plans to develop a proposed regulation pursuant to the financial assurance requirements in Comprehensive Environmental Response, Compensation, and Liability Act (“CERCLA”) § 108(b) that would cover coal ash facilities. This option would go into effect earlier than the first option.
Under both options, landfills that accept coal ash will be required to conduct groundwater monitoring, even if they were built before the Proposed Rule is finalized. Landfills built after the rule goes into effect would also have to install liners. The Proposed Rule does not address depositing coal ash as backfill in mines, known as minefills. Nor does it affect the current status of coal ash that is beneficially reused. The Bevill exemption, which lists specific wastes that are exempt from regulation under RCRA, includes the beneficial reuse of coal ash (e.g., fly ash in cement and concrete). However, EPA is soliciting comments regarding the uses of coal ash in unencapsulated form, such as in road fill and agricultural applications. EPA is also soliciting comments on how to define “beneficial use.” Based on the comments submitted, EPA could determine that unencapsulated uses should be regulated or could redefine which “beneficial uses” remain exempt.
Once the proposed rule is published in the Federal Register, the public will have 90 days to submit comments.
For more information about the Proposed Rule and how to submit comments visit EPA’s website.



