Energy & environment · 10/07/2025Updated: 10/16/2026 · 1 min read
Finding of Failure To Attain the 1997 8-Hour Ozone Standards; California; San Joaquin Valley
Summary
The Environmental Protection Agency (EPA) is proposing to determine that the San Joaquin Valley, California area failed to attain the 1997 8-hour ozone national ambient air quality standard by its June 15, 2024 'Extreme' area attainment date, based on data from 2021 through 2023.