Public water system · MN1520002
ActiveLafayette
At a glance
Lafayette (PWSID MN1520002) is an active community water system in Nicollet County, Minnesota. It reports serving 504 people through 230 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; all are health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
504
Service connections
230
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Lafayette compare with other water systems in Nicollet County?
By EPA's size categories, Lafayette is a small system (501 to 3,300 people). Nicollet County has 26 active public water systems, and Lafayette is the 5th-largest of them by population served. Its population served is about 58% below the county average of 1,206 people per system, and accounts for 1.6% of the 31,366 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 Lafayette 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 Lafayette?
EPA lists Lafayette 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 26 active systems in Nicollet County (23%) are also owned by a local government.
Does Lafayette have drinking water violations?
EPA's records list 6 violations for this system; all are health-based, and the most recent began in January 2026. The violations listed here began between April 2021 and January 2026. By type: 6 contaminant level above the legal limit. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (6 of them). EPA lists 4 as archived and 2 as resolved. 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. 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 |
|---|---|---|---|---|
| 2026-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2022-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2021-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
All 6 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.
Lafayette: frequently asked questions
Who runs Lafayette?
Lafayette (PWSID MN1520002) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Lafayette serve?
Lafayette reports serving 504 people through 230 service connections in Nicollet County, Minnesota.
Where does Lafayette 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 Lafayette have any drinking water violations?
EPA's records list 6 violations for this system; all are health-based, and the most recent began in January 2026. 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 Lafayette'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 6 violations for this system; all are health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Lafayette's water quality report?
As a community water system, Lafayette 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 Nicollet County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| North Mankato | Nicollet | 14,448 | Community | Groundwater |
| Saint Peter | Nicollet | 12,198 | Community | Groundwater |
| Nicollet | Nicollet | 1,117 | Community | Groundwater |
| Courtland | Nicollet | 635 | Community | Groundwater |
| Scandian Grove Lutheran Church | Nicollet | 400 | Transient non-community | Groundwater |
| Minnesota Valley Lutheran High School | Nicollet | 300 | Non-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, “Lafayette, PWSID MN1520002, Minnesota”, https://aquacensus.com/water-systems/minnesota/lafayette-mn1520002 (data as of October 1, 2026).