Ethylene Oxide Update #67: November 6, 2025

The Illinois Environmental Protection Agency (IEPA) has updated its website to include the 2025 Q2 data related to Vantage’s permit. The results indicate Vantage has released 20.23 pounds (18.39% of permitted annual total) of EtO cumulatively year-to-date, of which 16.46 pounds (27.44% of permitted annual total) were fugitive emissions. Public Act 101-0023 and Vantage’s Construction Permit limit the facility to 110 pounds of emissions annually of which no more than 60 pounds can be fugitive emissions. The Q2 submission noted three leaking components, out of over 740 total components monitored, during the three-month period.  The components were repaired.

The second quarter report is now available on the IEPA website here: 

construction-permit-19100015-q2-25.pdf

Past reports can be found here: https://epa.illinois.gov/topics/community-relations/sites/ethylene-oxide.html