Public water system · ND0900134
ActiveBuffalo City of
At a glance
City of Buffalo (PWSID ND0900134) is an active community water system in Cass County, North Dakota. It reports serving 188 people through 132 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; none is health-based, and the most recent began in April 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
188
Service connections
132
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does City of Buffalo compare with other water systems in Cass County?
By EPA's size categories, City of Buffalo is a very small system (500 people or fewer). Cass County has 27 active public water systems. Its population served is well below the county average of 6,547 people per system, and accounts for 0.1% of the 176,764 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 Buffalo 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 Buffalo?
EPA lists City of Buffalo 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. 19 of the 27 active systems in Cass County (70%) are also owned by a local government.
Does City of Buffalo have drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in April 2024. The violations listed here began between January 1981 and April 2024. By type: 9 monitoring and reporting, 1 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (7 of them). EPA lists 8 as archived and 3 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 |
|---|---|---|---|---|
| 2024-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2024-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 1998-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1998-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-01-28 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1996-12-24 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1996-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1992-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1981-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 11 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 Buffalo: frequently asked questions
Who runs City of Buffalo?
City of Buffalo (PWSID ND0900134) 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 Buffalo serve?
City of Buffalo reports serving 188 people through 132 service connections in Cass County, North Dakota.
Where does City of Buffalo 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 Buffalo have any drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in April 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 City of Buffalo'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 11 violations for this system; none is health-based, and the most recent began in April 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 City of Buffalo's water quality report?
As a community water system, City of Buffalo 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 Cass County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Fargo City of | Cass | 120,762 | Community | Surface water |
| West Fargo City of | Cass | 34,858 | Community | Purchased surface water |
| Cass Rural Water District Fargo | Cass | 4,242 | Community | Purchased surface water |
| Cass Rural Water District-Phase I | Cass | 3,658 | Community | Groundwater |
| Casselton City of | Cass | 2,513 | Community | Purchased groundwater |
| Cass Rural Water District-Phase Ii | Cass | 1,700 | 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, “Buffalo City of, PWSID ND0900134, North Dakota”, https://aquacensus.com/water-systems/north-dakota/buffalo-city-of-nd0900134 (data as of October 1, 2026).