Cleaner Air Oregon is a health-based permitting program that regulates emissions of toxic air contaminants from facilities based on risk to nearby communities. CAO requires facilities to report toxic air contaminant emissions, assess potential health risks to people nearby and reduce toxic air contaminant risk if it exceeds legal limits.
As part of the Cleaner Air Oregon process, each facility has a dedicated web page to provide communities access to facility information and updates on where it is involved in the process.
- Each step of the CAO risk assessment process has a section that includes DEQ's communications and deliverables from the facility.
- The graphic below shows where a facility is in the Cleaner Air Oregon Process.
For additional information and history of the program, visit the Cleaner Air Oregon website.
CAO Risk Assessment Process
About the Facility
Mutual Materials manufactures clay bricks. The clay is excavated and open-air dried at the site. The dry clay, with the addition of material from rejected bricks, is screened to ensure the correct particle size. Water is added to achieve the proper consistency, and the wet material is formed, extruded, cut to brick size, dried in a natural gas-fired kiln and then cooled. Mutual Materials purchased the facility in 1993.