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. A facility-specific emissions inventory timeline and associated documents are linked below.
Feb. 1, 2022: DEQ calls facility into the CAO program.
May 2, 2022: Facility submitted Emissions Inventory.
Dec. 2, 2022: DEQ responded to the Emissions Inventory with a request for revisions and additional information.
Dec. 20, 2022: Facility submitted Emissions Inventory extension request.
Dec. 22, 2022: DEQ responded to Emissions Inventory extension request.
Jan. 12, 2023: Facility submitted revised Emissions Inventory.
March 29, 2023: DEQ responded to the Emissions Inventory with a request for revisions and additional information.
April 28, 2023: Facility submitted revised Emissions Inventory.
May 26, 2023: Facility submitted letter outlining plans to shut down in the near future and terminate its Simple ACDP. The CAO risk assessment will no longer be needed.