Public water system · UTAH18157
ActiveHerriman City Municipal Water Department
At a glance
Herriman City Municipal Water Department (PWSID UTAH18157) is an active community water system in Salt Lake County, Utah. It reports serving 60,000 people through 13,989 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
60,000
Service connections
13,989
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Herriman City Municipal Water Department compare with other water systems in Salt Lake County?
By EPA's size categories, Herriman City Municipal Water Department is a large system (10,001 to 100,000 people). Salt Lake County has 77 active public water systems. Its population served is about 3.2 times the county average of 19,034 people per system, and accounts for 4.1% of the 1,465,589 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 Herriman City Municipal Water Department is about 9 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 106 Utah systems (9.4%) list purchased surface water as their primary source.
Who owns and regulates Herriman City Municipal Water Department?
EPA lists Herriman City Municipal Water Department 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. 23 of the 77 active systems in Salt Lake County (30%) are also owned by a local government.
Does Herriman City Municipal Water Department have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2025. The violations listed here began between October 2014 and July 2025. By type: 9 monitoring and reporting, 1 public notice, recordkeeping or other, 1 monitoring and 1 required treatment not met. The contaminants or rules involved are Consumer Confidence Rule, Revised Total Coliform Rule, Groundwater Rule and Total coliform bacteria (TCR). 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 |
|---|---|---|---|---|
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2017-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-07-28 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Heptachlorcode 2065 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Heptachlor epoxidecode 2067 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Hexachlorobenzenecode 2274 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Di(2-ethylhexyl) phthalatecode 2039 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dinosebcode 2041 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Picloramcode 2040 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Pentachlorophenolcode 2326 | No | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toxaphenecode 2020 | 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.
Herriman City Municipal Water Department: frequently asked questions
Who runs Herriman City Municipal Water Department?
Herriman City Municipal Water Department (PWSID UTAH18157) is a community water system owned by a local government. It is regulated by the UT state drinking water program.
How many people does Herriman City Municipal Water Department serve?
Herriman City Municipal Water Department reports serving 60,000 people through 13,989 service connections in Salt Lake County, Utah.
Where does Herriman City Municipal Water Department get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Herriman City Municipal Water Department have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 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 Herriman City Municipal Water Department'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, one is health-based, and the most recent began in July 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 Herriman City Municipal Water Department's water quality report?
As a community water system, Herriman City Municipal Water Department 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 Salt Lake County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Salt Lake City Water System | Salt Lake | 383,612 | Community | Surface water |
| Granger-Hunter Improvement District | Salt Lake | 121,083 | Community | Purchased surface water |
| West Jordan City Water System | Salt Lake | 117,025 | Community | Purchased surface water |
| Sandy City Water System | Salt Lake | 99,750 | Community | Purchased surface water |
| Jordan Valley Wcd | Salt Lake | 99,335 | Community | Surface water |
| South Jordan City | Salt Lake | 89,704 | Community | Purchased surface water |
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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, “Herriman City Municipal Water Department, PWSID UTAH18157, Utah”, https://aquacensus.com/water-systems/utah/herriman-city-municipal-water-department-utah18157 (data as of October 1, 2026).