Lead (1978) Nonattainment Area State/Area/County ReportData is current as of December 31, 2020
|MISSOURI (Region VII)|
|Jefferson County (part); Herculaneum, MO (Nonattainment)|
|Jefferson County (P)|
|Within city limits of Herculaneum.|
This is not an official list of nonattainment areas. See the Code of Federal Regulations (40 CFR Part 81) and pertinent Federal Register notices for legal lists and boundaries.