Public water system · MN1370004
ActiveMadison
At a glance
Madison (PWSID MN1370004) is an active community water system in Lac qui Parle County, Minnesota. It reports serving 1,511 people through 795 service connections. Its primary water source is 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 September 1991.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,511
Service connections
795
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Madison compare with other water systems in Lac qui Parle County?
By EPA's size categories, Madison is a small system (501 to 3,300 people). Lac qui Parle County has 23 active public water systems, and Madison is the largest of them by population served. Its population served is about 5.8 times the county average of 260 people per system, and accounts for 25% of the 5,986 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 Madison 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 Madison?
EPA lists Madison 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. 8 of the 23 active systems in Lac qui Parle County (35%) are also owned by a local government.
Does Madison have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in September 1991. 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 |
|---|---|---|---|---|
| 1991-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | 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.
Madison: frequently asked questions
Who runs Madison?
Madison (PWSID MN1370004) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Madison serve?
Madison reports serving 1,511 people through 795 service connections in Lac qui Parle County, Minnesota.
Where does Madison 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 Madison 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 September 1991. 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 Madison'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 September 1991. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Madison's water quality report?
As a community water system, Madison 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 Lac qui Parle County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Dawson | Lac qui Parle | 1,466 | Community | Groundwater |
| Lac Qui Parle Valley School | Lac qui Parle | 800 | Non-transient non-community | Groundwater |
| Our Savior'S Lutheran of Baxter | Lac qui Parle | 300 | Transient non-community | Groundwater |
| St. Joseph Catholic Church | Lac qui Parle | 225 | Transient non-community | Groundwater |
| Lac Qui Parle State Park | Lac qui Parle | 195 | Transient non-community | Groundwater |
| Borgund Lutheran Church | Lac qui Parle | 175 | Transient non-community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Madison, PWSID MN1370004, Minnesota”, https://aquacensus.com/water-systems/minnesota/madison-mn1370004 (data as of October 1, 2026).