Greenbrier County, WV
drinking water quality
31,851 residents · 35 public water systems · 18 ZIP codes
EPA sampled 3 of 35 public water systems here, together serving about 18,368 people. Last sampled 8/18/2025.
Health-based violations
Separately from PFAS, EPA records 78 health-based violations across 25 of the county’s water systems since 2020, the most recent in 2026. They involved contaminant 0700, contaminant 0300, total coliform, haloacetic acids, lead and copper, contaminant 1045.
What this means
PFAS are industrial chemicals that EPA describes as breaking down only very slowly in the environment. In April 2024 EPA set the first enforceable national limits: 4 ng/L for PFOA and PFOS, 10 ng/L for PFHxS, PFNA and GenX.
These figures are county-level and come from EPA’s sampling of public water systems. They describe the worst result found in the county, not what comes out of any particular tap — that depends on which system serves the address, and on the plumbing in the building. A private well is not covered by this programme at all.
ZIP codes in Greenbrier County
24901 · 24910 · 24916 · 24925 · 24931 · 24938 · 24943 · 24957 · 24966 · 24970 · 24977 · 24986 · 24991 · 25958 · 25972 · 25981 · 25984 · 26261
Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.