Public water system · MN1750002
ActiveChokio
At a glance
Chokio (PWSID MN1750002) is an active community water system in Stevens County, Minnesota. It reports serving 400 people through 222 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; all are health-based, and the most recent began in April 2003.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
400
Service connections
222
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Chokio compare with other water systems in Stevens County?
By EPA's size categories, Chokio is a very small system (500 people or fewer). Stevens County has 21 active public water systems, and Chokio is the 3rd-largest of them by population served. Its population served is roughly in line with the county average of 387 people per system, and accounts for 4.9% of the 8,136 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active community water system reports serving 6,703 people, so Chokio 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. Minnesota has 987 active community water systems, 15% of the state's 6,465 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,261 Minnesota systems (97%) list groundwater as their primary source.
Who owns and regulates Chokio?
EPA lists Chokio as owned by a local government. The MN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 21 active systems in Stevens County (29%) are also owned by a local government.
Does Chokio have drinking water violations?
EPA's records list 5 violations for this system; all are health-based, and the most recent began in April 2003. The violations listed here began between July 1994 and April 2003. By type: 5 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2003-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1997-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1996-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1994-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Chokio: frequently asked questions
Who runs Chokio?
Chokio (PWSID MN1750002) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Chokio serve?
Chokio reports serving 400 people through 222 service connections in Stevens County, Minnesota.
Where does Chokio 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 Chokio have any drinking water violations?
EPA's records list 5 violations for this system; all are health-based, and the most recent began in April 2003. 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 Chokio'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; all are health-based, and the most recent began in April 2003. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Chokio's water quality report?
As a community water system, Chokio 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 Stevens County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Morris | Stevens | 5,351 | Community | Groundwater |
| Hancock | Stevens | 845 | Community | Groundwater |
| Apostolic Christian Faith Church | Stevens | 350 | Transient non-community | Groundwater |
| Donnelly | Stevens | 216 | Community | Groundwater |
| Apostolic Christian Church | Stevens | 175 | Transient non-community | Groundwater |
| Good Shepherd Lutheran Church | Stevens | 130 | Transient non-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, “Chokio, PWSID MN1750002, Minnesota”, https://aquacensus.com/water-systems/minnesota/chokio-mn1750002 (data as of October 1, 2026).