HARNETT REGIONAL WATER
High Risk2 PFAS compound(s) exceed EPA Maximum Contaminant Levels
This utility has until 2029 to install treatment under the EPA's April 2024 PFAS rule. In the meantime, a point-of-use filter certified NSF/ANSI 58 for PFOA/PFOS provides reliable interim protection.
7
PFAS Detected
2
Above EPA Limits
18
ZIPs Served
Surface
Water Source
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 12.30ppt | 308% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 7.70ppt | 193% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 3.10ppt | 31% of limit
| 10 ppt | Below limit |
PFHxA Perfluorohexanoic acid | 7.10ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 6.90ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 3.60ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.40ppt | No federal limit | — | Unregulated |
ZIP Codes Served by This Utility
27332 27501 27505 27506 27521 27526 27540 27543 27546 27552 28323 28326 28334 28335 28339 28356 28368 28390
Click any ZIP to see the full result page for that area.
About this data
Source
EPA UCMR 5 — January 2026 release
Sampling period
January 2023 – December 2025
Water system ID (PWSID)
NC0343045
Detection threshold (MRL)
~1.5–2 ppt — "Not detected" means below this floor