policy impactOfficial Guide08/13/2026

[Federal] Determination of Attainment by the Attainment Date; 1997 Ozone Standards; California; Coachella Valley

Coachella Valley Ozone Met

Official sourcefederalregister.gov ↗ official release

Curated byThe Neighbor Times

Last checkedAug 13, 2026

Information is for general purposes only — verify details with the official agency before taking action. Read the original ↗

Agency: Environmental Protection Agency

The Environmental Protection Agency (EPA) is taking final action to determine that the Riverside County (Coachella Valley), CA 1997 ozone "Extreme" nonattainment area attained the revoked 1997 ozone national ambient air quality standards (NAAQS) by its June 15, 2025 attainment date. This determination is based on quality-assured and certified ambient air quality monitoring data from 2022 through 2024.

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