Utah Cities With the Lowest Water Scores
Utah cities whose tap water scores lowest on our 0-100 Water Score, derived from EPA records.
258 cities on this list · updated 2026
| # | City | Water Score |
|---|---|---|
| 1 | Cedar Citytop: Radium (combined -226 & -228) | 35/100 |
| 2 | Herrimantop: Radium (combined -226 & -228) | 61/100 |
| 3 | Huntsvilletop: Radium (combined -226 & -228) | 64/100 |
| 4 | Elbertatop: Arsenic | 68/100 |
| 5 | Cornishtop: Nitrate | 68/100 |
| 6 | Hildaletop: Gross Beta / Photon Emitters | 69/100 |
| 7 | Park Citytop: Nitrate | 70/100 |
| 8 | Salt Lake Citytop: Haloacetic Acids (HAA5) | 73/100 |
| 9 | Bountifultop: Radium-226 | 74/100 |
| 10 | Apple Valleytop: Radium-226 | 74/100 |
| 11 | Sandytop: Fluoride | 75/100 |
| 12 | Midwaytop: Arsenic | 75/100 |
| 13 | Rockvilletop: Radium-226 | 77/100 |
| 14 | Clintontop: Gross Beta / Photon Emitters | 79/100 |
| 15 | Fruit Heightstop: Total Trihalomethanes (TTHM) | 79/100 |
| 16 | Scipiotop: Nitrate | 79/100 |
| 17 | Ogdentop: Total Trihalomethanes (TTHM) | 81/100 |
| 18 | Manilatop: Total Trihalomethanes (TTHM) | 81/100 |
| 19 | East Carbontop: Total Trihalomethanes (TTHM) | 82/100 |
| 20 | Deltatop: Arsenic | 84/100 |
| 21 | Corinnetop: Gross Beta / Photon Emitters | 84/100 |
| 22 | Green Rivertop: Total Trihalomethanes (TTHM) | 84/100 |
| 23 | Hinckleytop: Arsenic | 84/100 |
| 24 | Provotop: Radium (combined -226 & -228) | 85/100 |
| 25 | Hurricanetop: Nitrate | 85/100 |
| 26 | Heber Citytop: Cadmium | 85/100 |
| 27 | Smithfieldtop: Atrazine | 85/100 |
| 28 | Moabtop: Nitrate | 85/100 |
| 29 | Stansbury Parktop: Haloacetic Acids (HAA5) | 85/100 |
| 30 | Roosevelttop: Total Trihalomethanes (TTHM) | 85/100 |
Methodology. Ranked by our 0-100 Water Score (lower = more on the EPA record), computed from SDWIS violations and PFAS monitoring. Built from public U.S. EPA drinking-water records (SDWIS violations + UCMR5 PFAS monitoring) for community water systems. A higher count or a lower Water Score reflects what's on the federal record — not a judgment of any utility. Meeting legal limits is not the same as zero risk.
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