WaterQ

Utah Tap Water Quality Rankings 2026: 45th in Nation | WaterQ

Alex Carter
By Alex Carter
Water Quality Researcher ยท Published 2026-06-23

Utah is ranked 45th out of 50 states for drinking water quality, receiving an average score of 64 and a grade of C. Serving a population of 3,669,912, the state's water infrastructure consists of 219 water systems that have recorded a total of 10,284 violations. These systems face environmental challenges typical of the Mountain West, including an arid climate, fast-growing urban areas, and legacy mining.

Key Findings for Utah

Reviewing EPA SDWIS data for 2026, here's what defines Utah's water quality landscape:

  • The arid climate of the Mountain West and rapid urban expansion put pressure on local water resources and infrastructure.
  • Legacy mining operations in mountain regions can contribute to heavy metals and mineral runoff entering local watersheds.
  • Rapidly growing urban areas can experience compliance challenges as municipalities work to expand water treatment capacity.

Most Common Contaminants in Utah

Here's what Utah residents should know about the contaminants most relevant to their water:

Arsenic

Arsenic can occur naturally in the geological formations of the western United States and can enter groundwater supplies. It is also sometimes associated with legacy mining areas in mountainous regions.

Lead

Lead typically enters drinking water through the corrosion of older service lines and household plumbing fixtures. This remains a potential issue in older housing stock.

Disinfection Byproducts

Disinfection byproducts form when chlorine treatments react with naturally occurring organic matter in source water. This is a common issue for water systems that rely on surface water reservoirs.

Utah's Best and Worst Cities for Water Quality

Water quality can vary significantly from one city or local utility to another. We recommend checking the specific municipal profiles on our Utah state page to view the latest local testing data and violation records. Explore the full breakdown on our Utah water systems page.

What Utah Residents Should Do

Given Utah's 45th place ranking, here's what matters most for residents:

  1. Look up your local water provider's annual Consumer Confidence Report to see exactly what contaminants were detected in your area.
  2. Test your water independently if you use a private well, as these are not regulated by the EPA and may contain naturally occurring contaminants like arsenic.
  3. Use an NSF-certified water filter designed to target the specific contaminants, such as lead or disinfection byproducts, found in your local system.
  4. Review the EPA's violation database for your local utility to stay informed about recent compliance issues or monitoring failures.

Frequently Asked Questions

How does Utah water quality compare to other states?

Utah ranks 45th out of 50 states for drinking water quality, receiving an average score of 64 and a grade of C. This score is based on the performance of 219 water systems serving a population of 3,669,912, which have collectively accumulated 10,284 violations.

What are the most common contaminants in Utah tap water?

Typical contaminants of concern in Utah's region include naturally occurring arsenic linked to geology and legacy mining, lead from aging household pipes, and disinfection byproducts from chemical treatment. These categories are common challenges for systems in the Mountain West.

Is it safe to drink tap water in Utah?

With a grade of C, Utah's tap water is generally considered acceptable to drink, but the high count of violations highlights key areas of concern. Residents may want to check their local system's specific compliance reports or use appropriate filtration to address regional contaminants.

Source: EPA SDWIS 2026 Compliance Data and WaterQ National Database. For more information on our ranking process, visit our state rankings page.