Covanta Marion, Inc.

​​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. 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.

Aug. 13, 2020: DEQ calls Covanta Marion, Inc. into the program.

• DEQ call-in letter for Covanta

March 11, 2021: DEQ responded to Nov. 24, 2020 Emissions Inventory

• DEQ response letter​
  
• EPA Method 23 

May 20, 2021: Facility submitted source test extension request.

• Covanta extension request​

• DEQ Response Letter
  

The Modeling Protocol provides information on how the facility plans to accurately model the concentrations of Toxic Air Contaminants (TACs) that community members may be exposed to based on the TAC emissions data from the approved Emissions Inventory. A Risk Assessment Work Plan is required for more complex Risk Assessments (Level 3 or Level 4) and provides more detailed information about locations where people live or normally congregate around the facility and how risk to these community members will be evaluated.

Dec. 6, 2023: Facility submitted a Modeling Protocol and Risk Assessment Work Plan.

• Modeling Protocol and Risk Assessment Work Plan
  
• Appendix A: Exposure Location Crosswalk​
  
• Appendix C: REER Calculation Workbook​
  
• Appendix D: AQ522 Form​
  

• DEQ Response Letter ​