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Hydro Extrusion Portland, 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 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 web page.

Green Arrow pointing to the right with 4 enclosed boxes labeled, from left to right, Emissions Inventory, Modeling Protocol, Ris

The Emissions Inventory provides information on all the Toxic Air Contaminant emissions from a facility, and includes information on a facility’s operations and activities, as well as fuel and material usage rates. This is often the longest step in the CAO risk assessment process as DEQ needs to verify that all activities have been accounted for, and that the most representative emissions data available are used. In some cases, DEQ will require a facility to perform source testing at this stage if insufficient data is available to estimate emissions. ​

Oct. 15, 2020: Facility called in to CAO program.

Dec. 23, 2020: Facility submitted an extension for Emissions Inventory.

Jan. 8, 2021: Facility submitted supplemental information for extension request.

Jan. 13, 2021: DEQ approved extension request.

Feb. 12, 2021: Facility submitted Emissions Inventory.

May 21, 2021: DEQ requests revisions to the Emissions Inventory and source testing.

June 11, 2021: Facility submitted approach to revising the Emissions Inventory and requested extension to completed source testing.

June 21, 2021: DEQ approves approach to revising the Emissions Inventory and source testing extension request.

July 6, 2021: Facility submits revised Emissions Inventory

July 16, 2021: Facility submits source test plan

July 22, 2021: DEQ requests revisions to source test plan

July 28, 2021: Facility submits a revised source test plan

About the Facility"

Hydro Extrusion Portland, Inc. operates an extruded aluminum surface coating facility. Operations include two surface coating lines: one vertical and one horizontal. VOC emissions from surface coating activities are captured and routed to a regenerative thermal oxidizer (RTO) for abatement. The facility was built in 1988.


Thomas Rhodes

Site address

5325 NE Skyport Way
Portland, OR 97218

Current Air Permit

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