Public water system · UTAH27021
ActiveWashington City
At a glance
Washington City (PWSID UTAH27021) is an active community water system in Washington County, Utah. It reports serving 45,865 people through 15,730 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
45,865
Service connections
15,730
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Washington City compare with other water systems in Washington County?
By EPA's size categories, Washington City is a large system (10,001 to 100,000 people). Washington County has 59 active public water systems, and Washington City is the 2nd-largest of them by population served. Its population served is about 11 times the county average of 4,138 people per system, and accounts for 19% of the 244,151 people reported by systems filed under the county. Across Utah, the 1,133 active systems average 3,458 people each. Nationally, the average active community water system reports serving 6,703 people, so Washington City is about 6.8 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Utah has 540 active community water systems, 48% of the state's 1,133 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 45 Utah systems (4%) list surface water as their primary source.
Who owns and regulates Washington City?
EPA lists Washington City as owned by a local government. The UT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 22 of the 59 active systems in Washington County (37%) are also owned by a local government.
Does Washington City have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2025. The violations listed here began between January 2020 and January 2025. By type: 12 monitoring and reporting. The contaminants or rules involved are Nitrate, Cyanide, Arsenic and Beryllium. EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cyanidecode 1024 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Berylliumcode 1075 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Antimonycode 1074 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Thalliumcode 1085 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nickelcode 1036 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Washington City: frequently asked questions
Who runs Washington City?
Washington City (PWSID UTAH27021) is a community water system owned by a local government. It is regulated by the UT state drinking water program.
How many people does Washington City serve?
Washington City reports serving 45,865 people through 15,730 service connections in Washington County, Utah.
Where does Washington City get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Washington City have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Washington City's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the UT state drinking water program.
Where can I find Washington City's water quality report?
As a community water system, Washington City must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| St George City Water System | Washington | 105,240 | Community | Purchased surface water |
| Hurricane City | Washington | 25,555 | Community | Purchased surface water |
| Utah Tech Culinary Water System | Washington | 12,000 | Non-transient non-community | Purchased surface water |
| Ivins | Washington | 10,465 | Community | Purchased surface water |
| Santa Clara City | Washington | 9,000 | Community | Purchased surface water |
| Hildale - Colorado City | Washington | 6,100 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Washington City, PWSID UTAH27021, Utah”, https://aquacensus.com/water-systems/utah/washington-city-utah27021 (data as of October 1, 2026).