Public water system · ND0900613
ActiveMapleton City of
At a glance
City of Mapleton (PWSID ND0900613) is an active community water system in Cass County, North Dakota. It reports serving 1,320 people through 207 service connections. Its primary water source is purchased groundwater, 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 June 2002.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,320
Service connections
207
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does City of Mapleton compare with other water systems in Cass County?
By EPA's size categories, City of Mapleton is a small system (501 to 3,300 people). 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 0.7% 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 Mapleton 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 Mapleton?
EPA lists City of Mapleton 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 Mapleton have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in June 2002. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 as archived. 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 |
|---|---|---|---|---|
| 2002-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
City of Mapleton: frequently asked questions
Who runs City of Mapleton?
City of Mapleton (PWSID ND0900613) 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 Mapleton serve?
City of Mapleton reports serving 1,320 people through 207 service connections in Cass County, North Dakota.
Where does City of Mapleton 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 Mapleton 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 June 2002. 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 Mapleton'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 June 2002. 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 Mapleton's water quality report?
As a community water system, City of Mapleton 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, “Mapleton City of, PWSID ND0900613, North Dakota”, https://aquacensus.com/water-systems/north-dakota/mapleton-city-of-nd0900613 (data as of October 1, 2026).