Public water system · ND1300432
ActiveHalliday City of
At a glance
City of Halliday (PWSID ND1300432) is an active community water system in Dunn County, North Dakota. It reports serving 188 people through 180 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; 3 are health-based, and the most recent began in September 1998.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
188
Service connections
180
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does City of Halliday compare with other water systems in Dunn County?
By EPA's size categories, City of Halliday is a very small system (500 people or fewer). Dunn County has 7 active public water systems, and City of Halliday is the 2nd-largest of them by population served. Its population served is about 14% below the county average of 218 people per system, and accounts for 12% of the 1,525 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 Halliday 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 83 North Dakota systems (21%) list purchased surface water as their primary source.
Who owns and regulates City of Halliday?
EPA lists City of Halliday 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. 5 of the 7 active systems in Dunn County (71%) are also owned by a local government.
Does City of Halliday have drinking water violations?
EPA's records list 6 violations for this system; 3 are health-based, and the most recent began in September 1998. The violations listed here began between April 1980 and September 1998. By type: 3 monitoring and reporting and 3 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 6 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1998-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1985-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Fluoridecode 1025 | Yes | Archived |
| 1983-06-13 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Fluoridecode 1025 | Yes | Archived |
| 1980-04-23 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Fluoridecode 1025 | Yes | Archived |
All 6 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 Halliday: frequently asked questions
Who runs City of Halliday?
City of Halliday (PWSID ND1300432) 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 Halliday serve?
City of Halliday reports serving 188 people through 180 service connections in Dunn County, North Dakota.
Where does City of Halliday 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 City of Halliday have any drinking water violations?
EPA's records list 6 violations for this system; 3 are health-based, and the most recent began in September 1998. 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 Halliday'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 6 violations for this system; 3 are health-based, and the most recent began in September 1998. 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 Halliday's water quality report?
As a community water system, City of Halliday 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 Dunn County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Killdeer City of | Dunn | 939 | Community | Purchased surface water |
| Dunn Center City of | Dunn | 146 | Community | Purchased surface water |
| Dodge City of | Dunn | 87 | Community | Purchased surface water |
| New Hradec Waterworks | Dunn | 60 | Community | Purchased surface water |
| Manning Water Board | Dunn | 55 | Community | Purchased surface water |
| Medicine Hole Golf Course | Dunn | 50 | Transient non-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, “Halliday City of, PWSID ND1300432, North Dakota”, https://aquacensus.com/water-systems/north-dakota/halliday-city-of-nd1300432 (data as of October 1, 2026).