NorthWest Region

Air Toxics Health Risk Assessment Status

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 health standards.
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.
  • A color-coded graphic 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.

Air Toxics assessment process

process diagram 

For an introduction to emissions inventories and why they matter, please see EPA’s Fact Sheet. 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.
Oct. 4, 2019: DEQ calls PCC Structurals, Inc. Large Parts Campus (PCC-LPC) into the program
Jan. 2, 2020: PCC-LPC submits Emissions Inventory and supporting Emissions Estimates for DEQ review
March 17, 2020: DEQ requests additional information for Emissions Inventory review

April 10, 2020: PCC-LPC submits an extension request for submittal of supporting information and revised Emissions Inventory

April 29, 2020: Maul Foster Alongi writes to DEQ during PCC-LPC's shutdown to confirm that PCC-LPC will clarify the extension request after the facility resumed production activities.

May 7, 2020: PCC-LPC submits a letter to DEQ clarifying their extension request.

June 3, 2020: DEQ responds to PCC-LPC's formal extension request

June 15, 2020: PCC-LPC submits supplemental information, including process flow and site diagrams.

Aug. 4, 2020: DEQ response to PCC-LPC's submittal

Aug. 26, 2020: PCC-LPC submits an extension request for submittal of revised Emissions Inventory

Sep. 1, 2020: DEQ response to PCC-LPC's extension request

DEQ Contact
Site Address
4600 SE Harney Drive,
Portland, Oregon 97206