Utah
Water quality data from the EPA Safe Drinking Water Information System
Water Systems
2,385
Active public water systems
Population Served
3.90M
Residents with piped water
Lead Violations
15
Systems exceeding 15 ppb
Copper Violations
76
Lead & Copper Rule
Average Lead Level
EPA Action Level: 15 ppb
MCLG (health goal): 0 ppb
Average across 744 systems with reported lead data.
Violations Detected
91 water systems in Utah have reported violations under the Lead and Copper Rule. These utilities are required to notify customers and take corrective action.
Schools & Daycares
3 school or daycare water systems identified in this state. 2 have active violations.
Children are especially vulnerable to lead exposure. Schools are required to test for lead and remediate violations.
Water Systems: Highest Lead Levels
| System Name | City | Population | Lead Level | Status | Sample Date |
|---|---|---|---|---|---|
| SMITHFIELD | 10,223 | 46.00 ppb | Violation | 2025-12-31 | |
| NORTH SALT LAKE | 18,655 | 16.00 ppb | Violation | 2025-12-31 | |
| FARMINGTON | 13,110 | 13.50 ppb | OK | 2025-12-31 | |
| BOUNTIFUL | 10,565 | 8.60 ppb | OK | 2024-12-31 | |
| BOUNTIFUL | 37,500 | 7.20 ppb | OK | 2025-12-31 | |
| TRIDELL | 13,835 | 7.10 ppb | OK | 2024-12-31 | |
| FARMINGTON | 15,000 | 6.40 ppb | OK | 2024-12-31 | |
| BLUFFDALE | 23,205 | 6.00 ppb | OK | 2025-12-31 | |
| SALT LAKE CITY | 15,800 | 5.70 ppb | OK | 2024-12-31 | |
UNIVERSITY OF UTAHSchool/Daycare | SANDY | 57,080 | 5.50 ppb | OK | 2025-12-31 |
| WEST JORDAN | 99,335 | 5.05 ppb | OK | 2025-12-31 | |
| SARATOGA SPRINGS | 21,431 | 5.00 ppb | OK | 2025-12-31 | |
| PROVO | 116,288 | 4.30 ppb | OK | 2025-12-31 | |
| SOUTH JORDAN | 87,356 | 4.10 ppb | OK | 2023-12-31 | |
| KAYSVILLE | 32,976 | 4.10 ppb | OK | 2023-12-31 |
Showing top 15 of 677 systems with lead data. Action level: 15 ppb.
Systems With Active Violations
These water systems have exceeded EPA limits and must take corrective action.
SANDY · Pop. 57,080
Lead: 5.50 ppb (2025-12-31)
BRIGHAM CITY · Pop. 33,540
Lead: 2.80 ppb (2024-12-31)
ELWOOD · Pop. 25,625
Lead: 1.20 ppb (2024-12-31)
PLAIN CITY · Pop. 20,820
Lead: 3.30 ppb (2024-12-31)
PLEASANT VIEW · Pop. 20,000
Lead: 1.31 ppb (2025-06-30)
HEBER CITY · Pop. 19,000
Lead: 2.70 ppb (2025-12-31)
NORTH SALT LAKE · Pop. 18,655
Lead: 16.00 ppb (2025-12-31)
SMITHFIELD · Pop. 10,223
Lead: 46.00 ppb (2025-12-31)
VERNAL · Pop. 10,000
Lead: 0.70 ppb (2025-12-31)
Water Source Types
Air Quality
ModerateAvg AQI
51.2
PM2.5
7.4 µg/m³
Unhealthy Days
15
Primary Pollutant
PM2.5
Source: EPA AirNow & American Lung Association 2024 State of the Air. AQI scale: 0–50 Good · 51–100 Moderate · 101–150 Sensitive Groups · 151+ Unhealthy.
PFAS Contamination
Moderate DetectionPFAS (per- and polyfluoroalkyl substances), known as “forever chemicals,” are a group of synthetic chemicals that persist indefinitely in the environment and human body. The EPA set a maximum contaminant level (MCL) of 4 parts per trillion (ppt) for PFOA and PFOS in April 2024. View national PFAS tracker →
Systems Tested
128
PFAS Detected
38
Detection Rate
29.7%
Exceeding MCL (4 ppt)
5(3.9%)
Highest recorded level: 12 ppt (EPA MCL: 4 ppt). Hill AFB contamination documented; some industrial sources