Public water system · ND4000854
ActiveSt John City of
At a glance
City of St John (PWSID ND4000854) is an active community water system in Rolette County, North Dakota. It reports serving 341 people through 125 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in October 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
341
Service connections
125
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of St John compare with other water systems in Rolette County?
By EPA's size categories, City of St John is a very small system (500 people or fewer). Rolette County has 7 active public water systems, and City of St John is the 5th-largest of them by population served. Its population served is about 36% below the county average of 532 people per system, and accounts for 9.2% of the 3,723 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 St John 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 St John?
EPA lists City of St John 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. 4 of the 7 active systems in Rolette County (57%) are also owned by a local government.
Does City of St John have drinking water violations?
EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in October 2013. The violations listed here began between October 1991 and October 2013. By type: 4 public notice, recordkeeping or other, 3 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 4 as archived, 3 as resolved and 2 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2013-10-02 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2013-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2012-10-02 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2012-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2010-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1996-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1991-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 9 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 St John: frequently asked questions
Who runs City of St John?
City of St John (PWSID ND4000854) 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 St John serve?
City of St John reports serving 341 people through 125 service connections in Rolette County, North Dakota.
Where does City of St John 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 St John have any drinking water violations?
EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in October 2013. 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 St John'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 9 violations for this system; 3 are health-based, and the most recent began in October 2013. 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 St John's water quality report?
As a community water system, City of St John 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 Rolette County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rolla City of | Rolette | 1,280 | Community | Groundwater |
| Dunseith City of | Rolette | 773 | Community | Groundwater |
| All Seasons Wd-System Iv | Rolette | 670 | Community | Groundwater |
| Rolette City of | Rolette | 484 | Community | Groundwater |
| Legacy Co-Op | Rolette | 150 | Transient non-community | Groundwater |
| International Peace Garden | Rolette | 25 | 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, “St John City of, PWSID ND4000854, North Dakota”, https://aquacensus.com/water-systems/north-dakota/st-john-city-of-nd4000854 (data as of October 1, 2026).