Public water system · ND3700876
ActiveSheldon City of
At a glance
City of Sheldon (PWSID ND3700876) is an active community water system in Ransom County, North Dakota. It reports serving 95 people through 90 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in November 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
95
Service connections
90
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does City of Sheldon compare with other water systems in Ransom County?
By EPA's size categories, City of Sheldon is a very small system (500 people or fewer). Ransom County has 5 active public water systems, and City of Sheldon is the 4th-largest of them by population served. Its population served is well below the county average of 967 people per system, and accounts for 2% of the 4,835 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 Sheldon 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 Sheldon?
EPA lists City of Sheldon 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 5 active systems in Ransom County (80%) are also owned by a local government.
Does City of Sheldon have drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in November 2025. The violations listed here began between July 1993 and November 2025. By type: 2 monitoring and reporting, 2 contaminant level above the legal limit and 1 reporting. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 3 as resolved and 2 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 |
|---|---|---|---|---|
| 2025-11-18 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 1995-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1995-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 5 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 Sheldon: frequently asked questions
Who runs City of Sheldon?
City of Sheldon (PWSID ND3700876) 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 Sheldon serve?
City of Sheldon reports serving 95 people through 90 service connections in Ransom County, North Dakota.
Where does City of Sheldon 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 Sheldon have any drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in November 2025. 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 Sheldon'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 5 violations for this system; 2 are health-based, and the most recent began in November 2025. 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 Sheldon's water quality report?
As a community water system, City of Sheldon 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 Ransom County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lisbon City of | Ransom | 2,154 | Community | Groundwater |
| Southeast Wud (Central-Lisbon) | Ransom | 1,675 | Community | Purchased groundwater |
| Enderlin City of | Ransom | 886 | Community | Groundwater |
| Grant Colony | Ransom | 25 | 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, “Sheldon City of, PWSID ND3700876, North Dakota”, https://aquacensus.com/water-systems/north-dakota/sheldon-city-of-nd3700876 (data as of October 1, 2026).