Environmental Protection Agency
This action proposes amendments to the national emission standards for hazardous air pollutants (NESHAP) for mercury emissions from mercury cell chlor-alkali plants. This NESHAP (hereafter called the "2003 Mercury Cell MACT") limited mercury air emissions from these plants. Following promulgation of the 2003 Mercury Cell Maximum Achievable Control Technology (MACT) NESHAP, EPA received a petition to reconsider several aspects of the rule from the Natural Resources Defense Council (NRDC). NRDC also filed a petition for judicial review of the rule in the U.S. Court of Appeals for the DC Circuit. By a letter dated April 8, 2004, EPA granted NRDC's petition for reconsideration, and on July 20, 2004, the Court placed the petition for judicial review in abeyance pending EPA's action on reconsideration. This action is EPA's proposed response to NRDC's petition for reconsideration. We are not proposing any amendments to the control and monitoring requirements for stack emissions of mercury established by the 2003 Mercury Cell MACT. This proposed rule would amend the requirements for cell room fugitive mercury emissions to require work practice standards for the cell rooms and to require instrumental monitoring of cell room fugitive mercury emissions. This proposed rule would also amend aspects of these work practice standards and would correct errors and inconsistencies in the 2003 Mercury Cell MACT that have been brought to our attention.
Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 63 [EPA-HQ-OAR-2002-0017; FRL-8576-3] RIN 2060-AN99 AGENCY: Environmental Protection Agency (EPA). ACTION: Proposed rule. SUMMARY: This action proposes amendments to the national emission standards for hazardous air pollutants (NESHAP) for mercury emissions from mercury cell chlor-alkali plants. This NESHAP (hereafter called the “2003 Mercury Cell MACT”) limited mercury air emissions from these plants. Following promulgation of the 2003 Mercury Cell Maximum Achievable Control Technology (MACT) NESHAP, EPA received a petition to reconsider several aspects of the rule from the Natural Resources Defense Council (NRDC). NRDC also filed a petition for judicial review of the rule in the U.S. Court of Appeals for the DC Circuit. By a letter dated April 8, 2004, EPA granted NRDC's petition for reconsideration, and on July 20, 2004, the Court placed the petition for judicial review in abeyance pending EPA's action on reconsideration. This action is EPA's proposed response to NRDC's petition for reconsideration. We are not proposing any amendments to the control and monitoring requirements for stack emissions of mercury established by the 2003 Mercury Cell MACT. This proposed rule would amend the requirements for cell room fugitive mercury emissions to require work practice standards for the cell rooms and to require instrumental monitoring of cell room fugitive mercury emissions. This proposed rule would also amend aspects of the…
Other Federal Register documents from the same docket.
Citation: 73 FR 33258
