Public water system · ND2500946
ActiveTowner City of
At a glance
City of Towner (PWSID ND2500946) is an active community water system in McHenry County, North Dakota. It reports serving 479 people through 327 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in March 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
479
Service connections
327
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Towner compare with other water systems in McHenry County?
By EPA's size categories, City of Towner is a very small system (500 people or fewer). McHenry County has 7 active public water systems, and City of Towner is the 2nd-largest of them by population served. Its population served is about 45% above the county average of 331 people per system, and accounts for 21% of the 2,316 people reported by systems filed under the county. Across North Dakota, the 403 active systems average 1,864 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Towner is well below 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. North Dakota has 317 active community water systems, 79% of the state's 403 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 177 North Dakota systems (44%) list groundwater as their primary source.
Who owns and regulates City of Towner?
EPA lists City of Towner as owned by a local government. The ND state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 7 active systems in McHenry County (86%) are also owned by a local government.
Does City of Towner have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in March 2024. The violations listed here began between January 2020 and March 2024. By type: 5 monitoring and reporting, 2 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Chlorine (2 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2024-03-02 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2024-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2022-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
All 8 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.
City of Towner: frequently asked questions
Who runs City of Towner?
City of Towner (PWSID ND2500946) is a community water system owned by a local government. It is regulated by the ND state drinking water program.
How many people does City of Towner serve?
City of Towner reports serving 479 people through 327 service connections in McHenry County, North Dakota.
Where does City of Towner get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does City of Towner have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in March 2024. 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 City of Towner'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. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in March 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the ND state drinking water program.
Where can I find City of Towner's water quality report?
As a community water system, City of Towner 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 McHenry County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Velva City of | McHenry | 1,084 | Community | Groundwater |
| Drake City of | McHenry | 275 | Community | Groundwater |
| Granville City of | McHenry | 241 | Community | Purchased groundwater |
| Upham City of | McHenry | 130 | Community | Purchased groundwater |
| Karlsruhe City of | McHenry | 82 | Community | Groundwater |
| Towner State Nursery | McHenry | 25 | Transient non-community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Towner City of, PWSID ND2500946, North Dakota”, https://aquacensus.com/water-systems/north-dakota/towner-city-of-nd2500946 (data as of October 1, 2026).