DES MOINES – The DNR Air Quality Bureau has the following draft permits up for review. The permits help protect Iowans’ health and the air where we live. DNR’s permitting staff review the applications to ensure facilities comply with state and federal air quality standards. The public has the right and is encouraged to comment on draft permits. DNR considers public comments before finalizing the permits. Submit comments in writing to the assigned permit writer before 4:30 p.m. on the last day of the comment period.
Title V Operating Permits
Title V Operating permits are reviewed and re-issued every five years. Facilities with a Title V permit have the potential to emit large amounts of air pollutants compared to other facilities. The five-year reviews are a federal requirement and ensure adequate monitoring is included in the permit. The DNR plans to issue Title V Operating Permits for the following facilities. Find permit details at www.iowadnr.gov/titlev-draft or through the Iowa EASY Air Public Inquiry Portal and then click on the Public Notice tab.
Jefferson County
HyCast Foundry, LLC located at 905 West Depot Ave, Fairfield
The application was submitted to operate their existing Gray and Ductile Iron Foundries facility. The public comment period for this draft renewal Title V permit is being extended to February 2, 2026, and a virtual public hearing will be held on January 29, 2026 at 7:00 p.m.
Sioux County
West Branch RNG, LLC located at 2978 470th St, Maurice
The application was submitted to operate their existing Mixed, Manufactured, or Liquefied Petroleum Gas Production and/or Distribution facility. The public comment period ends January 17, 2026.