What was found in ZIP 31811
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Pfba | 0.0082 µg/L No EPA limit set Main supplier: HARRIS COUNTY WATER SYSTEM · 22,922 people · 2024 | 1/1 | UCMR-5 |
| PFOS | 0.0073 µg/L No EPA limit set Main supplier: HARRIS COUNTY WATER SYSTEM · 22,922 people · 2024 | 1/1 | UCMR-5 |
| Pfpea | 0.0070 µg/L No EPA limit set Main supplier: HARRIS COUNTY WATER SYSTEM · 22,922 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0061 µg/L No EPA limit set Main supplier: HARRIS COUNTY WATER SYSTEM · 22,922 people · 2024 | 1/1 | UCMR-5 |
| PFOA | 0.0058 µg/L No EPA limit set Main supplier: HARRIS COUNTY WATER SYSTEM · 22,922 people · 2024 | 1/1 | UCMR-5 |
| PFBS | 0.0049 µg/L No EPA limit set Main supplier: HARRIS COUNTY WATER SYSTEM · 22,922 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0047 mg/L 31% of the EPA limit 0.0150 mg/L Main supplier: HARRIS COUNTY WATER SYSTEM · 22,922 people · 2025 | 1/1 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 31811
| Supplier | State | Population served |
|---|---|---|
| HARRIS COUNTY WATER SYSTEM | GA | 22,922 |
Frequently asked questions about ZIP 31811 tap water
Is the tap water in ZIP 31811 safe to drink?
EPA testing detected 7 contaminants across the water suppliers serving ZIP 31811. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 31811?
1 public water supplier report EPA drinking-water monitoring for ZIP 31811. Each is listed above with its population served.
What contaminants are in ZIP 31811's water?
EPA monitoring detected Pfba, PFOS, Pfpea, Pfhxa, PFOA, and others across this ZIP's suppliers. The full list with levels and sources is above.