Fairfield Clean Air

Advocating for transparency, safety, and a cleaner community.

See The Data Get Involved

Our Mission

Fairfield Clean Air is a community coalition whose mission is to monitor the quality of our essential common resource: fresh and healthy air.

It was established in 2025 in response to concerns about potential industrial air pollution.

Fairfield Clean Air will continue to assess air quality, inform our community, and advocate for an optimal healthy environment for all.

The Context

Hycast Foundry, LLC, is a gray and ductile iron foundry located at 905 West Depot Avenue in Fairfield, Iowa. Built in 1912, it is now seeking a new Title V Operating Permit from the Iowa Department of Natural Resources (IDNR).


According to the IDNR Public Notice, this facility has the potential to emit the following air pollutants annually. We believe the community has a right to know.

Hycast Foundry

Potential Annual Emissions

Particulate Matter (Total)

441.24 Tons

PM-10

215.98 Tons

PM-2.5

179.73 Tons

Volatile Organic Compounds

144.49 Tons

Carbon Monoxide

62.30 Tons

Hazardous Air Pollutants

24.83 Tons

Nitrogen Oxides

7.33 Tons

Sulfur Dioxide

3.04 Tons

Lead

0.065 Tons

As seen below, IDNR was prepared to accept this level of pollutants in our Fairfield air.

We need to act now to voice our concerns and seek a solution that preserves our community health and well being.

See the RESOURCES page with information for comment letters.

"Based on the information provided in the Title V Operating Permit renewal application, the DNR has made an initial determination that the facility meets all the applicable criteria for the issuance of an operating permit specified in 567 IAC 24.107."


— IDNR Public Notice