Public water system · ND4101425
ActiveMilnor City of
At a glance
City of Milnor (PWSID ND4101425) is an active community water system in Sargent County, North Dakota. It reports serving 653 people through 325 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
653
Service connections
325
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does City of Milnor compare with other water systems in Sargent County?
By EPA's size categories, City of Milnor is a small system (501 to 3,300 people). Sargent County has 5 active public water systems, and City of Milnor is the 2nd-largest of them by population served. Its population served is about 50% above the county average of 437 people per system, and accounts for 30% of the 2,183 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 Milnor 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 groundwater means the system buys groundwater from another public water system rather than drawing its own. 114 North Dakota systems (28%) list purchased groundwater as their primary source.
Who owns and regulates City of Milnor?
EPA lists City of Milnor 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 5 active systems in Sargent County (100%) are also owned by a local government.
Does City of Milnor have drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2021. The violations listed here began between January 1993 and April 2021. By type: 4 contaminant level above the legal limit, 2 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 5 as archived and 2 as resolved. 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. 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 |
|---|---|---|---|---|
| 2021-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2021-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 1999-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1999-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1998-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1998-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 7 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 Milnor: frequently asked questions
Who runs City of Milnor?
City of Milnor (PWSID ND4101425) 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 Milnor serve?
City of Milnor reports serving 653 people through 325 service connections in Sargent County, North Dakota.
Where does City of Milnor get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does City of Milnor have any drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2021. 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 Milnor'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 7 violations for this system; 4 are health-based, and the most recent began in April 2021. 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 Milnor's water quality report?
As a community water system, City of Milnor 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 Sargent County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Gwinner City of | Sargent | 753 | Community | Groundwater |
| Forman City of | Sargent | 504 | Community | Groundwater |
| Rutland City of | Sargent | 163 | Community | Purchased groundwater |
| Sundale Hutterian Association | Sargent | 110 | 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, “Milnor City of, PWSID ND4101425, North Dakota”, https://aquacensus.com/water-systems/north-dakota/milnor-city-of-nd4101425 (data as of October 1, 2026).