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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.

  • Emissions Inventory Cover Letter
  • 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

  • Emissions Inventory cover letter
  • Emissions Inventory

July 16, 2021: Facility submits source test plan

  • Hydro Extrusio​n source test plan

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

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

July 30, 2021: DEQ approves source test plan 
Aug. 13, 2021: Facility conducts source testing to verify Permanent Total Enclosure with 100% capture efficiency

Sep. 10, 2021: Facility submits source test report
Nov. 24, 2021: DEQ approves source test

Dec. 10, 2021: DEQ requests revisions to the Emissions Inventory that was received on July 6, 2021
Dec. 15, 2021: Facility submits a 30-day extension request to submit the revised Emissions Inventory
Dec. 21, 2021: DEQ approves the extension request. The Emissions Inventory is due by Feb, 10, 2022
Feb. 10, 2022: Facility submits the revised Emissions Inventory

March 22, 2022: Facility submits form AQ523
April 20, 2022: DEQ requests information on Categorically Exempt Toxics Emissions Units
May 4, 2022: Facility submits information on Categorically Exempt Toxics Emissions Units
May 20, 2022: DEQ approves the Emissions Inventory
​Oct. 21, 2022: Facility submits supporting information for material usage and composition

Dec. 9, 2022: DEQ requests revisions to the Emissions Inventory
Jan. 9, 2023: Facility submits a revised Emissions Inventory.

Jan. 30, 2023: DEQ approves the revised Emissions Inventory.
May 30, 2023: Facility submits a revised Emissions Inventory.


Modeling Protocol

June 20, 2022: Facility submits the Modeling Protocol

Dec. 9, 2022: DEQ requests revisions to the Modeling Protocol

Jan. 9, 2023: Facility submits a revised Modeling Protocol

Jan. 30, 2023: DEQ approves the revised Modeling Protocol

May 30, 2023: Facility submits a revised Modeling Protocol

Risk Assessment Work Plan

July 15, 2022: Facility submits the Risk Assessment Work Plan

Jan. 9, 2023: Facility submits a revised Risk Assessment Work Plan

Jan. 30, 2023: DEQ approves the revised Risk Assessment Work Plan

May 30, 2023: Facility submits a revised Risk Assessment Work Plan



May 30, 2023: Facility submits a Risk Assessment

Oct. 4, 2023: DEQ approves the Risk Assessment 

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.

Contact

Thomas Rhodes

Site address

5325 NE Skyport Way
Portland, OR 97218

Current Air Permit

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