On January 29, 2025, there was an accidental release (the Incident ) of hydrogen from a nitrogen hose line at the facility. On August 18, 2025, EPA sent Respondent a Notice letter. On September 5, 2025, and on various other occasions, EPA conferred with Respondent regarding the violations alleged herein and provided an opportunity for Respondent to submit additional information or materials. Based upon the information gathered during the Investigation, EPA determined that Respondent violated certain provisions of the CAA. EPA and Respondent entered into a Consent Agreement and Final Order, Docket No. CAA-06-2026-3521 to resolve Respondent's liability for federal civil penalties for the alleged violation in this Order.