SALT LAKE CITY (ABC4) — One of Utah's oldest refineries has been non-compliant with air quality regulations for the last three years, according to the Environmental Protection Agency (EPA).

Since the 1940s, the Chevron refinery in North Salt Lake has been a part of the capital city's skyline. However, the EPA's updated compliance data lists the historic facility as having "significant violations" to the Clean Air Act (CAA) as of Friday, Aug. 29, 2025. However, the state found no evidence of non-compliance.

"High-profile violations"

According to an EPA report obtained by ABC4.com, the Chevron refinery emitted almost 290,000 pounds of pollutants into the atmosphere in 2024.

The largest specific pollutants include benzene (almost 40,000 pounds), hexane (over 15,000 pounds), and propylene

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