Safest Drinking Water in Utah 2026
Utah has 5 public water systems serving 840,810 people. The safest system is Granger-Hunter Improvement District in Salt Lake City with a score of 82/100.
Top 5 Water Systems in Utah
| # | Water System | City | Pop. Served | Source | Violations | Score |
|---|---|---|---|---|---|---|
| 1 | Granger-Hunter Improvement District | Salt Lake City | 121,083 | Surface water | 0 | B (82) |
| 2 | West Jordan City Water System | West Jordan | 117,025 | Surface water | 0 | B (80) |
| 3 | Provo City | Provo | 116,288 | Surface water | 0 | B (80) |
| 4 | St George City Water System | St George City | 105,240 | Surface water | 0 | C (78) |
| 5 | Salt Lake City Water System | Salt Lake City | 381,174 | Surface water | 2 | F (54) |
Water quality data for Utah is sourced from the EPA Safe Drinking Water Information System (SDWIS), which tracks compliance for all public water systems.
Frequently Asked Questions
Granger-Hunter Improvement District in Salt Lake City has the highest Water Safety Score in Utah at 82/100 (Grade B), serving 121,083 people.
Utah has 5 public water systems serving 840,810 people. The average Water Safety Score is 75/100.
The Water Safety Score (0-100) is based on health violations (40%), contaminant exceedances (30%), enforcement history (20%), and monitoring violations (10%). Higher scores mean cleaner, safer water.
Water Safety Score: health violations (40%), contaminant exceedances (30%), enforcement history (20%), monitoring violations (10%).