Coke Ovens Batteries: National Emissions Standards for Hazardous Air Pollutants (NESHAP)
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Rule Summary
Following a technology review for the Coke Ovens Batteries NESHAP, conducted in accordance with the Clean Air Act, EPA finalized:
- Lower leak limits for coke oven emissions from coke oven doors, lids, and offtakes as a development in practices, processes, or control technologies that necessitate revision of the standards.
- Requirements for HNR facilities to meet a limit of zero percent leaks from oven doors in addition to either monitor pressure in ovens or common tunnels during all phases of oven operation.
- A revised equation to estimate emissions from leaks from coke oven doors that replaces an equation that used only 1981 data.
- Fenceline monitoring for benzene, including a work practice action level. If a monitor reading exceeds the final action level, the facility must do a root-cause analysis and take corrective action to lower emissions such that fenceline monitor readings are no longer exceeding the action level.
In addition, the EPA also finalized the removal of exemptions for periods of startup, shutdown, and malfunction and requirements for electronic reporting of performance test results and compliance reports.
Rule History
04/15/2005 - Final rule; amendments.
08/09/2004 - Proposed rule; amendments.
01/13/1994 - Correction.
10/27/1993 - Final Rule.
12/04/1992 - Proposed rule and notice of public hearing.
Additional Resources
Risk Assessment Document for Coke Oven MACT Residual Risk
View the supporting documents in the docket folder to find additional related documents to the rules.