EPA Proposes Determination of Attainment by the Attainment Date for Mariposa County in California

Summary

The Environmental Protection Agency (EPA) is proposing to determine that the Mariposa County nonattainment area in California attained the 2015 ozone national ambient air quality standards by the August 3, 2024 attainment date, excluding exceedances due to exceptional events in 2021 and 2022.

Original source language: Federal Register — Environmental Protection AgencyOpen original release →

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