The United States Environmental Protection Agency (EPA) finalized amendments to improve the effectiveness of the 2004 National Emission Standards for Hazardous Air Pollutants (NESHAP) for Lime Manufacturing Plants. These affected facilities operate lime kilns to produce lime products from the calcination of limestone. Each facility potentially operates multiple individual lime kilns, lime coolers and process stone handling operations. EPA has evaluated the risks remaining after fully implementing the 2004 NESHAP and determined that risks from this source category are acceptable. In addition, the agency identified no developments in practices, processes or control technologies that would further reduce emissions of hazardous air pollutants. EPA determined that the standards continue to provide an ample margin of safety to protect public health and the environment.
EPA is finalizing minor amendments to clarify that standards are applicable during periods of startup, shutdown and malfunction and require electronic reporting of data submissions. The major change from proposal is the replacing of the proposed work practice standards for periods of startup and shutdown with emission standards that apply during those periods.
For more information about the Lime Manufacturing Plants NESHAP, visit the regulatory page.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.