Utah drinking water record

Health-based drinking water violations in Utah, by year
15: 75751516: 70701617: 77771718: 31311819: 70701920: 26262021: 17172122: 22222223: 71712324: 24242425: 505025

Busiest year: 2017 (77 violations). Counted by the year the violation period began. Source: EPA SDWIS.

  • Community water systems: 502 active systems serve about 3,713,734 people. 382 of them (76%) serve 3,300 people or fewer; 376 draw mainly on groundwater and 119 on surface water.
  • Health-based violations since 2015: 538, at 230 systems (46% of all systems). That share is 43rd of 50 states (1 = lowest).
  • Most common problems: uncorrected Ground Water Rule deficiencies (296); contaminant averages over the limit (68); coliform treatment technique (43). Source: EPA SDWIS
  • Largest system: Salt Lake City Water System, about 383,612 people, with 1 health-based violation since 2015. Source: EPA SDWIS
  • Housing age: the median Utah home was built in 1992 (US 1980). Source: US Census Bureau, ACS 2020–2024 (table B25035)
  • Storm damage to water service: NOAA storm narratives mention water mains, boil water notices or lost water service in 5 episodes in Utah since 2015. Source: NOAA Storm Events Database
  • August 20, 2022, Grand (flash flood): “Several areas had their water turned off after flood waters led to a broken water main.” Source: NOAA Storm Events Database
  • March 5, 2022, Wasatch Mountains I-80 North (heavy snow): “Storm total snow accumulations included 19 inches in Emigration Canyon, 15.9 inches at City Creek Water Plant, 15.5 inches at Parleys Summit, and 13 inches at Mountain Dell Dam.” Source: NOAA Storm Events Database
The largest water systems in Utah
SystemPeople servedMain sourceHealth violations since 2015
Salt Lake City Water System383,612Surface water1
Granger-Hunter Improvement District121,083Bought surface water0
West Jordan City Water System117,025Bought surface water1
Provo City116,288Bought surface water0
St George City Water System105,240Bought surface water1
Sandy City Water System99,750Bought surface water1

Source: EPA SDWIS.

Share of water systems with a health-based violation since 2015: Utah and nearby states
  • Idaho34.2%
  • Wyoming35%
  • Nevada35.4%
  • Colorado37.8%
  • Utah45.8%
  • Arizona53.3%
  • New Mexico74.9%

Utah is 5th of 7 (1 = lowest share). Source: EPA SDWIS.

Checked September 2026.

Who to call in Utah, city by city

5 Utah cities on this site and the water utility for each. What to do while you wait is in our water service outage guide.

Frequently asked questions

Is there a water service outage in Utah right now?

Not on this site: no reports from Utah in the last 24 hours.

How many public water systems are in Utah?

EPA records list 502 active community water systems in Utah, serving about 3,713,734 people. 76% serve 3,300 people or fewer.

How common are drinking water violations in Utah?

Since 2015, 230 of 502 community water systems in Utah (46%) have had at least one health-based violation, 538 in total.

What is the largest water system in Utah?

Salt Lake City Water System, which EPA records list as serving about 383,612 people.

Report counts are user-submitted; other figures name their official source. How our data works

Cities in Utah with Water Service Outages Information

Orem

no reports in the last 24 hours · pop. 97,821
City of Orem Water

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Provo

no reports in the last 24 hours · pop. 116,868
Provo City Water

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Salt Lake City

no reports in the last 24 hours · pop. 200,133
Salt Lake City Department of Public Utilities

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West Jordan

no reports in the last 24 hours · pop. 116,861
City of West Jordan Public Works

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West Valley City

no reports in the last 24 hours · pop. 140,230
Granger-Hunter Improvement District

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