National Emission Standards for Hazardous Air Pollutants: Iron and Steel Foundries Residual Risk and Technology Review

Résumé

This action presents the proposed results of the U.S. Environmental Protection Agency's (EPA's) residual risk and technology review (RTR) required under the Clean Air Act (CAA) for the National Emission Standards for Hazardous Air Pollutants (NESHAP) for major source Iron and Steel Foundries, initially promulgated in 2004 and amended in 2008. Pursuant to the CAA, this action also presents the proposed results of the technology review for the NESHAP for area source Iron and Steel Foundries, initially promulgated in 2008. In this proposed action, the EPA is also proposing to remove exemptions for periods of startup, shutdown, and malfunction (SSM) and specify that the emissions standards apply at all times; require electronic reporting of performance test results and compliance reports; and make minor corrections and clarifications for a few other rule provisions for major sources and area sources. Implementation of these proposed rules is not expected to result in significant changes to the emissions from iron and steel foundries, human health, or environmental impacts associated with those emissions. However, this action, if finalized, would result in improved monitoring, complianc