Pierce County tap water
7 of 29 water systems serving Pierce County with full PFAS testing averaged above a 2024 federal PFAS level at one or more sampling points.
- 227 community water systems list this county as served; 28 serve 3,300+ people with full PFAS testing.
- 8 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 |
|---|---|---|---|---|
| Tacoma Water Division City of | Surface water | 446,245 | No | 0 |
| Puyallup City of | Purchased surface water | 94,520 | No | 0 |
| Lakewood Water District | Groundwater | 82,425 | Yes | 0 |
| Southwood | Purchased surface water | 64,155 | Yes | 0 |
| Bonney Lake Water department City | Purchased surface water | 43,371 | No | 0 |
| Firgrove Mutual Inc | Purchased surface water | 36,168 | No | 0 |
| Jblm Lewis | Groundwater | 35,414 | Yes | 0 |
| Spanaway Water Company | Groundwater | 34,506 | Yes | 0 |
| Parkland Light & Water Company | Groundwater | 33,775 | Yes | 0 |
| Fife dept of Public Works | Purchased surface water | 29,091 | No | 0 |
| Summit Water & Supply CO | Groundwater | 19,125 | No | 0 |
| Gig Harbor Water dept | Groundwater | 16,510 | 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.