Utah tap water
2 of 126 Utah water systems with full PFAS testing (2%) averaged above a 2024 federal PFAS level at one or more sampling points.
- 490 active community water systems in the EPA file; 118 serve 3,300+ people and have a full PFAS set.
- 74 systems had at least one health-based violation since 2021-10-26.
- 6 systems report a lead 90th percentile above 15 ppb (some results are old; check each system page).
Largest systems
| System | People served | PFAS above a 2024 level? | Health-based violations since 2021-10-26 |
|---|---|---|---|
| Salt Lake City Water System | 383,612 | No | 0 |
| Granger-Hunter Improvement District | 121,083 | No | 0 |
| West Jordan City Water System | 117,025 | No | 0 |
| Provo City | 116,288 | No | 0 |
| St George City Water System | 105,240 | No | 0 |
| Sandy City Water System | 99,750 | No | 0 |
| Jordan Valley Wcd | 99,335 | No | 0 |
| Orem City Water System | 98,129 | No | 0 |
Counties
Salt Lake County22 systems with full PFAS testingUtah County19 systems with full PFAS testingDavis County18 systems with full PFAS testingWeber County11 systems with full PFAS testing
All 23 utilities with a page in Utah
- Eagle Mountain City 61,266
- Granger-Hunter Improvement District 121,083
- Herriman City Municipal Water department 60,000
- Jordan Valley Wcd 99,335
- Kearns Improvement District 56,700
- Layton City Water System 82,000
- Lehi City 93,446
- Logan City Water System 55,540
- Ogden City Water System 87,267
- Orem City Water System 98,129
- Provo City 116,288
- Riverton City Water System 45,600
- Salt Lake City Water System 383,612
- Sandy City Water System 99,750
- Saratoga Springs City 68,000
- South Jordan City 89,704
- Spanish Fork City 47,169
- St George City Water System 105,240
- Taylorsville-Bennion Id 67,098
- Tooele City Water System 41,770
- University of Utah 57,080
- Washington City 45,865
- West Jordan City Water System 117,025
Why not "the state's water quality"? You drink from one utility, not a state. Rollups count systems, not people, so one large utility counts the same as a small one. Use the system pages for your actual water.
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.