Skip to main content

Cascade Steel Rolling Mills, Inc.

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 in the risk assessment process.

  • Each step of the CAO risk assessment process has a section that includes DEQ's communications and deliverables with the facility.
  • The color-coded 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 web page

Air toxics assessment process


An Emissions Inventory is a list of each toxic air contaminant regulated under the Cleaner Air Oregon rules that a facility emits in a given year. The Emissions Inventory includes the amount of each toxic air contaminant emitted from each individual emissions-producing activity. 

For an introduction to emissions inventories and why they matter, please see EPA's Fact Sheet. A facility-specific emissions inventory timeline and associated documents are linked below.  

Feb. 7, 2022: Facility called in to CAO program.

​May 9, 2022: Cascade Steel submits Emissions Inventory (currently under DEQ review) 

About the facility 

Cascade Steel Rolling Mills, Inc. processes ferrous scrap metal (for example, auto bodies, machines, and appliances) to produce various steel products, such as reinforcing bar (rebar) for the construction industry, flat and round merchant bar for steel fabrication, and various finished products. The steel mill was founded in 1968 and now consists of a melt shop, a rolling mill, and supporting operations. The current mill melt shop capacity is 948,000 tons of steel production per year. The 85-acre facility is served by truck and rail.

DEQ contact

Julia DeGagné

Site address

3200 N Hwy 99W McMinnville, OR 97128 

Current Air Permit 

Title V, 36-5034-TV-01 

Current Air Permit 

Current Review Report