Benton County tap water
0 of 14 water systems serving Benton County with full PFAS testing averaged above a 2024 federal PFAS level at one or more sampling points.
- 28 community water systems list this county as served; 13 serve 3,300+ people with full PFAS testing.
- 2 had a health-based violation since 2021-10-26.
Largest systems serving this county
| System | Source | People served (whole system) | PFAS above a 2024 level? | Violations since 2021-10-26 |
|---|---|---|---|---|
| Springdale Water Utilities | Purchased surface water | 100,795 | No | 0 |
| Rogers Water Utilities | Purchased surface water | 81,443 | No | 0 |
| Bentonville Water Utilities | Purchased surface water | 51,250 | No | 0 |
| Bella Vista Poa | Purchased surface water | 39,419 | No | 0 |
| Centerton Waterworks | Purchased surface water | 27,243 | No | 0 |
| Siloam Springs Waterworks | Surface water | 23,940 | No | 0 |
| Washington Water Authority Wwa | Purchased surface water | 20,140 | No | 0 |
| Pea Ridge Waterworks | Purchased surface water | 12,795 | No | 0 |
| Madison CO Water Facilities Bd | Purchased surface water | 11,435 | No | 0 |
| Gentry Waterworks | Purchased surface water | 8,870 | No | 0 |
| Benton County Water District #1 | Purchased surface water | 6,730 | No | 0 |
| Cave Springs Waterworks | Purchased surface water | 5,365 | No | 0 |
Which one is yours? A county usually has several utilities. Your bill or your utility's annual water-quality report names yours. Population is for the whole system, which can cross county lines.
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.