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Basic Oxygen Process Furnace (BOPF) Steelmaking Facilities Secondary Emissions: New Source Performance Standards

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Rule Summary

These final secondary emission standards apply to any new, modified, or reconstructed top-blown BOPF and to any new, modified, or reconstructed hot metal transfer station or skimming station used with a bottom-blown or a top-blown BOPF, for which construction commenced after January 20, 1983.  Visible emissions from shop roof monitors (or other building openings) are limited to an opacity of 10 percent during the steel production cycle of a top-blown BOPF, and during hot metal transfer, and skimming for a bottom-blown BOPf except that an opacity greater than 10 percent but less than 20 percent may occur once per steel production cycle.  Visible emissions from the shop roof monitor during the furnace cycle of a bottom-blown BOPF are not subject to the roof monitor opacity standard. Reference Method 9, with data reduction procedures for 3-minute averages will be used to determine compliance with the secondary emission opacity standards.

Rule History

01/02/1986 - Final Rule.

01/20/1983 - Proposed rule and notice of public hearing.

04/13/1978 - Final Rule.

03/02/1977 - Proposed Rule. 

03/08/1974 - Final Rule.

06/11/1973 - Proposed Rule.

Additional Resources

Background Information Document