EPA Approves Stricter Ohio Air Quality Plan
The EPA has approved an amendment to Ohio's State Implementation Plan under the Clean Air Act. The move strengthens the state's air quality compliance regime, imposing updated emission controls and recordkeeping requirements for manufacturers, particularly those classified as major sources.
This latest EPA action specifically targets major sources of nitrogen oxides (NOx) and volatile organic compounds (VOCs) in Ohio, compelling companies not covered by existing Control Techniques Guidelines (CTG) to conduct and submit detailed "source-specific" RACT studies. These studies must analyze the technological and economic feasibility of new emission controls. The list of facilities directly impacted by these source-specific requirements includes prominent manufacturers such as PPG Industries, Owens Corning, Charter Steel, and U.S. Steel Tubular Lorain. The approved plan incorporates specific NOx RACT determinations for furnaces at Charter Steel and source-specific limits for boilers, heaters, and cooking lines at other facilities. This move is largely driven by the reclassification of the Cleveland ozone nonattainment area to "serious," which under the Clean Air Act, triggers more stringent requirements. A key change for manufacturers in Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, and Summit counties is the lowering of the "major source" threshold from 100 tons per year of emissions to 50 tons per year, bringing a new tier of mid-sized facilities into this stricter regulatory framework. For manufacturers, this means new or updated presumptive RACT emission limitations for various equipment types. For example, the rules establish revised NOx limits for different classes of boilers (small, mid-size, large), stationary combustion turbines, internal combustion engines, and reheat furnaces. Similar updates expand requirements for certain coating and printing lines. The financial and operational impacts extend beyond new controls. Affected facilities must now navigate more intensive recordkeeping and reporting mandates to demonstrate compliance. Adding to the cost pressure, the Ohio EPA's Division of Air Pollution Control is implementing its first fee increase in almost 30 years, introducing a new $5,000 annual base fee for Title V and Synthetic Minor facilities. From an internal audit perspective, these changes necessitate a fresh look at environmental compliance frameworks. Audit plans should now verify the company's process for evaluating technical and economic feasibility for the newly required RACT studies and confirm that monitoring and reporting systems can capture the data required by the updated permits. This state-level tightening occurs amidst a backdrop of shifting federal environmental policy, creating a complex compliance puzzle for manufacturers. While some federal regulations face rollbacks or delays, state-level actions like Ohio's demonstrate that the trend toward more stringent air quality standards continues, requiring manufacturers to maintain robust, and flexible, compliance programs.
