Arkansas tap water
0 of 170 Arkansas water systems with full PFAS testing (0%) averaged above a 2024 federal PFAS level at one or more sampling points.
- 652 active community water systems in the EPA file; 151 serve 3,300+ people and have a full PFAS set.
- 154 systems had at least one health-based violation since 2021-10-26.
- 35 systems report a lead 90th percentile above 15 ppb (some results are old; check each system page).
Largest systems
| System | People served | PFAS above a 2024 level? | Health-based violations since 2021-10-26 |
|---|---|---|---|
| Central Arkansas Water | 368,455 | No | 0 |
| Fayetteville Waterworks | 116,398 | No | 0 |
| Springdale Water Utilities | 100,795 | No | 0 |
| Fort Smith Water Utilities | 86,209 | No | 0 |
| Jonesboro Water System | 81,888 | No | 0 |
| Rogers Water Utilities | 81,443 | No | 0 |
| Hot Springs Utilities | 75,343 | No | 0 |
| Conway Water System | 65,233 | No | 0 |
Counties
All 11 utilities with a page in Arkansas
- Bentonville Water Utilities 51,250
- Central Arkansas Water 368,455
- Conway Water System 65,233
- Fayetteville Waterworks 116,398
- Fort Smith Water Utilities 86,209
- Hot Springs Utilities 75,343
- Jonesboro Water System 81,888
- Liberty Utilities 43,438
- Rogers Water Utilities 81,443
- Springdale Water Utilities 100,795
- Texarkana Water Utilities 50,815
Why not "the state's water quality"? You drink from one utility, not a state. Rollups count systems, not people, so one large utility counts the same as a small one. Use the system pages for your actual water.
Not medical or legal advice. UCMR 5 results are screening data, not compliance determinations.
Sources and freshness
Public-water-system facts, violations and lead/copper results: EPA ECHO SDWA download (SDWIS snapshot 2026-10-13). PFAS and lithium results: EPA UCMR 5 final data (sampling 2023–2025). Both are U.S. government works, downloaded 2026-10-26. Numbers are computed by the published method; the same fields are in the open data files.