Public water system · ND2901491
ActiveOmnd Water Treatment Plant
At a glance
Omnd Water Treatment Plant (PWSID ND2901491) is an active community water system in Mercer County, North Dakota. It reports serving 4,168 people through 1,667 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in April 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,168
Service connections
1,667
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Omnd Water Treatment Plant compare with other water systems in Mercer County?
By EPA's size categories, Omnd Water Treatment Plant is a medium system (3,301 to 10,000 people). Mercer County has 10 active public water systems, and Omnd Water Treatment Plant is the largest of them by population served. Its population served is about 3.9 times the county average of 1,070 people per system, and accounts for 39% of the 10,695 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 Omnd Water Treatment Plant is about 38% 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 20 North Dakota systems (5%) list surface water as their primary source.
Who owns and regulates Omnd Water Treatment Plant?
EPA lists Omnd Water Treatment Plant 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. 10 of the 10 active systems in Mercer County (100%) are also owned by a local government.
Does Omnd Water Treatment Plant have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in April 2015. By type: 1 monitoring and reporting. The contaminant or rule involved is Bromate. EPA lists 1 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 |
|---|---|---|---|---|
| 2015-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Bromatecode 1011 | No | Resolved |
The one violation in EPA's records.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.
Omnd Water Treatment Plant: frequently asked questions
Who runs Omnd Water Treatment Plant?
Omnd Water Treatment Plant (PWSID ND2901491) is a community water system owned by a local government. It is regulated by the ND state drinking water program.
How many people does Omnd Water Treatment Plant serve?
Omnd Water Treatment Plant reports serving 4,168 people through 1,667 service connections in Mercer County, North Dakota.
Where does Omnd Water Treatment Plant get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Omnd Water Treatment Plant have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in April 2015. 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 Omnd Water Treatment Plant'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 one violation for this system; it is not health-based, and the most recent began in April 2015. For current results, consult the system's annual water quality report, EPA ECHO, or the ND state drinking water program.
Where can I find Omnd Water Treatment Plant's water quality report?
As a community water system, Omnd Water Treatment Plant 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 Mercer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Beulah City of | Mercer | 3,058 | Community | Groundwater |
| Hazen City of | Mercer | 2,411 | Community | Purchased surface water |
| Stanton City of | Mercer | 366 | Community | Purchased surface water |
| Zap City of | Mercer | 237 | Community | Purchased surface water |
| Golden Valley City of | Mercer | 182 | Community | Purchased surface water |
| Pick City City of | Mercer | 123 | 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, “Omnd Water Treatment Plant, PWSID ND2901491, North Dakota”, https://aquacensus.com/water-systems/north-dakota/omnd-water-treatment-plant-nd2901491 (data as of October 1, 2026).