Additional Revisions Proposed to MACT Standards for Ferroalloys Production

摘要

On October 6, 2014 (79 FR 60238-60291), EPA proposed additional revisions to the MACT standards for ferroalloys production. The proposed rule supplements previously proposed revisions to the ferroalloys production MACT standards. The issues addressed in the October 6, 2014 proposed rule include: 1) revisions to the paniculate matter emission limits for electric arc furnaces and local ventilation control devices; 2) emission limits for mercury, polycyclic aromatic hydrocarbons, and hydrochloric acid (HCl); 3) requirements to control process fugitive emissions based on full-building enclosure with negative pressure, or fenceline monitoring as an alternative; 4) a provision for emissions averaging; and 5) amendments to the monitoring, notification, recordkeeping, and testing requirements.