Macomb County tap water
0 of 19 water systems serving Macomb County with full PFAS testing averaged above a 2024 federal PFAS level at one or more sampling points.
- 27 community water systems list this county as served; 19 serve 3,300+ people with full PFAS testing.
- 5 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 |
|---|---|---|---|---|
| Warren, City of | Purchased surface water | 134,056 | No | 0 |
| Sterling Heights, City of | Purchased surface water | 127,000 | No | 0 |
| Clinton Township | Purchased surface water | 100,513 | No | 0 |
| Macomb Township | Purchased surface water | 90,000 | No | 0 |
| Shelby Township | Purchased surface water | 72,000 | No | 0 |
| St. Clair Shores, City of | Purchased surface water | 59,715 | No | 0 |
| Roseville, City of | Purchased surface water | 47,299 | No | 0 |
| Chesterfield Township | Purchased surface water | 41,650 | No | 0 |
| Eastpointe, City of | Purchased surface water | 32,442 | No | 0 |
| Harrison Township | Purchased surface water | 24,314 | No | 0 |
| Mount Clemens, City of | Surface water | 16,314 | No | 2 |
| Washington Township | Purchased surface water | 15,828 | 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.