Public water system · ND0901060
ActiveCass Rural Water District-Phase I
At a glance
Cass Rural Water District-Phase I (PWSID ND0901060) is an active community water system in Cass County, North Dakota. It reports serving 3,658 people through 1,407 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is health-based, and the most recent began in April 2004.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,658
Service connections
1,407
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Cass Rural Water District-Phase I compare with other water systems in Cass County?
By EPA's size categories, Cass Rural Water District-Phase I is a medium system (3,301 to 10,000 people). Cass County has 27 active public water systems, and Cass Rural Water District-Phase I is the 4th-largest of them by population served. Its population served is about 44% below the county average of 6,547 people per system, and accounts for 2.1% 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 Cass Rural Water District-Phase I is about half of 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 177 North Dakota systems (44%) list groundwater as their primary source.
Who owns and regulates Cass Rural Water District-Phase I?
EPA lists Cass Rural Water District-Phase I 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. 8 of the 27 active systems in Cass County (30%) are also privately owned.
Does Cass Rural Water District-Phase I have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in April 2004. By type: 1 contaminant level above the legal limit. 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 |
|---|---|---|---|---|
| 2004-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Cass Rural Water District-Phase I: frequently asked questions
Who runs Cass Rural Water District-Phase I?
Cass Rural Water District-Phase I (PWSID ND0901060) is a community water system privately owned. It is regulated by the ND state drinking water program.
How many people does Cass Rural Water District-Phase I serve?
Cass Rural Water District-Phase I reports serving 3,658 people through 1,407 service connections in Cass County, North Dakota.
Where does Cass Rural Water District-Phase I get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Cass Rural Water District-Phase I have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in April 2004. 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 Cass Rural Water District-Phase I'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 health-based, and the most recent began in April 2004. For current results, consult the system's annual water quality report, EPA ECHO, or the ND state drinking water program.
Where can I find Cass Rural Water District-Phase I's water quality report?
As a community water system, Cass Rural Water District-Phase I 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 |
| Casselton City of | Cass | 2,513 | Community | Purchased groundwater |
| Cass Rural Water District-Phase Ii | Cass | 1,700 | Community | Groundwater |
| Cass Rural Water District-Phase Iii | Cass | 1,682 | 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, “Cass Rural Water District-Phase I, PWSID ND0901060, North Dakota”, https://aquacensus.com/water-systems/north-dakota/cass-rural-water-district-phase-i-nd0901060 (data as of October 1, 2026).