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. For an introduction to emissions inventories and why they matter, please see EPA's Fact Sheet.
March 1, 2022: Facility called in to CAO program.
May 31, 2022: Facility submitted Emissions Inventory and supporting information (currently in DEQ review)
Feb. 6, 2024: DEQ responds to the Emissions Inventory submittal with a request for revisions and additional information.
April 22, 2024: Facility submitted Emissions Inventory extension request.
April 24, 2024: DEQ responded to Emissions Inventory extension request.
April 24, 2024: DEQ requests additional information.
May 6, 2024: Facility submitted additional information regarding the Emissions Inventory
Aug. 5, 2024: Facility submitted additional information regarding the Emissions Inventory
Aug. 22, 2024: Facility submitted additional information regarding the Emissions Inventory
March 24, 2025: DEQ requests
additional information
May 5 and 6, 2025: DEQ conducted a site visit at the Facility
June 5, 2025: Facility submitted an extension request
June 24, 2025: Facility submitted additional information regarding Emissions Inventory
Aug. 22, 2025: Facility submits Sampling Plan (in DEQ review)