Kane County tap water
1 of 18 water systems serving Kane County with full PFAS testing averaged above a 2024 federal PFAS level at one or more sampling points.
- 39 community water systems list this county as served; 17 serve 3,300+ people with full PFAS testing.
- 4 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 |
|---|---|---|---|---|
| Aurora | Surface water | 183,000 | No | 0 |
| Elgin | Surface water | 114,797 | No | 0 |
| Carpentersville | Groundwater | 37,983 | No | 0 |
| St Charles | Groundwater | 33,081 | No | 0 |
| Montgomery | Groundwater | 28,956 | No | 0 |
| Batavia | Groundwater | 26,098 | No | 0 |
| South Elgin | Groundwater | 23,648 | Yes | 2 |
| Geneva | Groundwater | 21,247 | No | 0 |
| North Aurora | Groundwater | 18,261 | No | 0 |
| Sugar Grove | Groundwater | 11,243 | No | 0 |
| Pingree Grove | Groundwater | 10,365 | No | 0 |
| Gilberts | Groundwater | 8,366 | 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.