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Air Quality permits under review

  • 2/27/2020 2:23:00 PM
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DES MOINES – The DNR Air Quality Bureau has the following draft permits up for review. The permits help protect Iowans’ health and air quality. DNR’s permitting staff review each permit application to ensure facilities comply with state and federal air quality requirements. We encourage public comments on draft permits, providing help on how to make effective comments. Submit written comments to the assigned permit writer before 4:30 p.m. on the last day of the comment period. DNR considers public comments before finalizing the permits.

Construction Permits
DNR engineers review and issue construction permits to facilities before they build new or modify existing sources of air pollution. The public may review the following air quality construction permits available online at

Marion County
Pella Corporation – Pella Division – 102 Main St., Pella.
Project No. 19-347, Installation of a regenerative thermal oxidizer. Public comment period ends March 27.

Muscatine County
MidAmerican Energy Company – Louisa Generating Station – 8602 172nd St., Muscatine.
Project No. 19-298, Permit modification to revise temperature and flowrate for the Louisa Boiler. The public comment period ends March 27.