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Air Quality permits under review

  • 12/31/2020 11:22:00 AM
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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.

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

Scott County
Arconic Davenport Works (formerly Alcoa) – 4879 State St., Riverdale. The application was submitted to operate their existing Aluminum Sheet, Plate and Foil facility. The public comment period ends Jan. 31, 2021. 

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 OR through the EASY Air Public Inquiry Portal and then click the Public Notice tab.

Muscatine County
Grain Processing Corporation – 1600 Oregon St., Muscatine. Project No. 20-041, Dryer House 5 (DH5), Dewatering Building Sources: increase PM, PM10 and PM2.5 emission limits, and modify exhaust air flow rate and temperature due to 2019 testing. The public comment period ends Jan. 27, 2021.