Public water system · ND5300948
ActiveTrenton Water Users Assoc
At a glance
Trenton Water Users Assoc (PWSID ND5300948) is an active community water system in Williams County, North Dakota. It reports serving 840 people through 300 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
840
Service connections
300
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Trenton Water Users Assoc compare with other water systems in Williams County?
By EPA's size categories, Trenton Water Users Assoc is a small system (501 to 3,300 people). Williams County has 19 active public water systems, and Trenton Water Users Assoc is the 6th-largest of them by population served. Its population served is about 58% below the county average of 1,990 people per system, and accounts for 2.2% of the 37,806 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 Trenton Water Users Assoc 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 Trenton Water Users Assoc?
EPA lists Trenton Water Users Assoc as privately owned. 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. 10 of the 19 active systems in Williams County (53%) are also privately owned.
Does Trenton Water Users Assoc have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2024. The violations listed here began between December 1997 and August 2024. By type: 8 monitoring and reporting, 3 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Chloramine (5 of them). EPA lists 9 as resolved and 3 as archived. 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. 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 |
|---|---|---|---|---|
| 2024-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloraminecode 1006 | No | Resolved |
| 2019-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloraminecode 1006 | No | Resolved |
| 2017-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloraminecode 1006 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloraminecode 1006 | No | Resolved |
| 2012-11-13 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloraminecode 1006 | No | Resolved |
| 2004-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1998-01-28 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Trenton Water Users Assoc: frequently asked questions
Who runs Trenton Water Users Assoc?
Trenton Water Users Assoc (PWSID ND5300948) is a community water system privately owned. It is regulated by the ND state drinking water program.
How many people does Trenton Water Users Assoc serve?
Trenton Water Users Assoc reports serving 840 people through 300 service connections in Williams County, North Dakota.
Where does Trenton Water Users Assoc 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 Trenton Water Users Assoc have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 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 Trenton Water Users Assoc'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, none is health-based, and the most recent began in August 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 Trenton Water Users Assoc's water quality report?
As a community water system, Trenton Water Users Assoc 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 Williams County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Williston City of | Williams | 26,426 | Community | Surface water |
| Northwest Rural Water District | Williams | 5,102 | Community | Purchased surface water |
| Tioga City of | Williams | 2,202 | Community | Purchased surface water |
| R & T Water System | Williams | 1,003 | Community | Purchased surface water |
| Ray City of | Williams | 950 | Community | Purchased surface water |
| Inspire Communities-Springbrook | Williams | 300 | 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, “Trenton Water Users Assoc, PWSID ND5300948, North Dakota”, https://aquacensus.com/water-systems/north-dakota/trenton-water-users-assoc-nd5300948 (data as of October 1, 2026).