Polk County tap water
0 of 11 water systems serving Polk County with full PFAS testing averaged above a 2024 federal PFAS level at one or more sampling points.
- 38 community water systems list this county as served; 11 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 |
|---|---|---|---|---|
| Des Moines Water Works | Purchased surface water | 246,055 | No | 0 |
| Ankeny, City of | Purchased surface water | 76,207 | No | 0 |
| West Des Moines Water Works | Purchased surface water | 73,959 | No | 0 |
| Urbandale Water Utility | Purchased surface water | 45,605 | No | 0 |
| Johnston Municipal Water Supply | Purchased surface water | 24,897 | No | 0 |
| Altoona Water Supply | Groundwater | 22,436 | No | 1 |
| Clive Water department | Purchased surface water | 20,277 | No | 0 |
| Grimes Water Supply | Groundwater | 17,997 | No | 0 |
| Bondurant Muni Water Supply | Purchased surface water | 9,393 | No | 0 |
| Southeast Polk Rwd | Purchased surface water | 7,565 | No | 0 |
| Polk City Water Supply | Purchased surface water | 6,533 | 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.