Walker County, GA
drinking water quality
69,340 residents · 6 public water systems · 6 ZIP codes
EPA sampled 3 of 6 public water systems here, together serving about 59,897 people. The highest reading was PFOS at 56 ng/L at Lafayette. 3 of the sampled systems were above a federal limit. Last sampled 9/9/2024.
What was found
| Compound | Highest result | Federal limit | Ratio |
|---|---|---|---|
| PFOS | 56 ng/L | 4 ng/L | 14.0× |
| PFOA | 31 ng/L | 4 ng/L | 7.8× |
| PFHxS | 5.2 ng/L | 10 ng/L | 0.5× |
Also detected, with no federal limit set: PFBS (44 ng/L), PFPeA (9.2 ng/L), PFHxA (8 ng/L), PFHpA (7.6 ng/L), PFDA (3 ng/L).
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 Walker County
30707 · 30725 · 30728 · 30739 · 30741 · 30750
Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.