Harris County, GA
drinking water quality
36,929 residents · 18 public water systems · 9 ZIP codes
EPA sampled 1 of 18 public water systems here, together serving about 22,922 people. The highest reading was PFOS at 7.3 ng/L at Harris County Water System. 1 of the sampled system was above a federal limit. Last sampled 7/11/2023.
What was found
| Compound | Highest result | Federal limit | Ratio |
|---|---|---|---|
| PFOS | 7.3 ng/L | 4 ng/L | 1.8× |
| PFOA | 5.8 ng/L | 4 ng/L | 1.4× |
Also detected, with no federal limit set: PFBA (8.2 ng/L), PFPeA (7 ng/L), PFHxA (6.1 ng/L), PFBS (4.9 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 Harris County
31804 · 31807 · 31808 · 31811 · 31822 · 31823 · 31826 · 31831 · 31833
Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.