Suncor Energy Inc.’s (SU) plants and refinery in Commerce City are facing renewed scrutiny from two government agencies for alleged non-compliance with air emission laws. The U.S. Environmental Protection Agency (“EPA”) and the Colorado Department of Public Health and Environment (“CDPHE”) issued a Notice of Violation last week based on findings from a 2023 inspection finalized in an EPA report on Jan 26. This notice marks the initial step in a federal-state enforcement process.Alleged Violations and Regula ...