Public water system · MN1400010
ActiveLesueur
At a glance
Lesueur (PWSID MN1400010) is an active community water system in Le Sueur County, Minnesota. It reports serving 4,170 people through 1,570 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,170
Service connections
1,570
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Lesueur compare with other water systems in Le Sueur County?
By EPA's size categories, Lesueur is a medium system (3,301 to 10,000 people). Le Sueur County has 50 active public water systems, and Lesueur is the 2nd-largest of them by population served. Its population served is about 7.4 times the county average of 567 people per system, and accounts for 15% of the 28,355 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 Lesueur is about 38% 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 Lesueur?
EPA lists Lesueur 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. 10 of the 50 active systems in Le Sueur County (20%) are also owned by a local government.
Does Lesueur have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2023. The violations listed here began between August 1992 and October 2023. By type: 3 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 as resolved and 1 as archived. 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. 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 |
|---|---|---|---|---|
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 2001-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1992-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 3 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.
Lesueur: frequently asked questions
Who runs Lesueur?
Lesueur (PWSID MN1400010) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Lesueur serve?
Lesueur reports serving 4,170 people through 1,570 service connections in Le Sueur County, Minnesota.
Where does Lesueur 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 Lesueur have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2023. 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 Lesueur'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 3 violations for this system; none is health-based, and the most recent began in October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Lesueur's water quality report?
As a community water system, Lesueur 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 Le Sueur County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| New Prague | Le Sueur | 8,247 | Community | Groundwater |
| Montgomery | Le Sueur | 3,379 | Community | Groundwater |
| Le Center | Le Sueur | 2,544 | Community | Groundwater |
| Waterville | Le Sueur | 1,868 | Community | Groundwater |
| Cleveland | Le Sueur | 719 | Community | Groundwater |
| Neisen'S Riverside Sports Bar | Le Sueur | 700 | 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, “Lesueur, PWSID MN1400010, Minnesota”, https://aquacensus.com/water-systems/minnesota/lesueur-mn1400010 (data as of October 1, 2026).