Utah drinking water quality
Utah has 1,080 active public water systems serving 3.9 million people. 605 of them, 56%, had at least one EPA violation in the past three years, 188 have an unresolved violation today, and 14 are designated serious violators by the EPA.
Active systems
1,080
in 29 counties
People served
3.9M
520 community systems serve 3.7M
Violations, past 3 years
605
56% of active systems
Serious violators
14
36 systems carry a health flag
Largest counties
All 29 countiesLargest community water systems
All 1,080 systems| System | Serves | Status |
|---|---|---|
| Salt Lake City Water System Salt Lake County |
383,612 | |
| Granger-Hunter Improvement District Salt Lake County |
121,083 | |
| West Jordan City Water System Salt Lake County |
117,025 | |
| Provo City Utah County |
116,288 | |
| ST George City Water System Washington County |
105,240 | |
| Sandy City Water System Salt Lake County |
99,750 | |
| Jordan Valley Wcd Salt Lake County |
99,335 | |
| Orem City Water System Utah County |
98,129 | |
| Lehi City Utah County |
93,446 | |
| South Jordan City Salt Lake County |
89,704 |
About the Utah data
Retrieved from EPA ECHO on Oct 11, 2026. EPA records for Utah systems do not include town names, so searches here match on ZIP code, street address, or county.