Public water system · MN1770007
ActiveLong Prairie
At a glance
Long Prairie (PWSID MN1770007) is an active community water system in Todd County, Minnesota. It reports serving 3,744 people through 1,149 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; 1 is health-based, and the most recent began in October 2003.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,744
Service connections
1,149
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Long Prairie compare with other water systems in Todd County?
By EPA's size categories, Long Prairie is a medium system (3,301 to 10,000 people). Todd County has 72 active public water systems, and Long Prairie is the largest of them by population served. Its population served is about 17 times the county average of 215 people per system, and accounts for 24% of the 15,512 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 Long Prairie is about 44% 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 Long Prairie?
EPA lists Long Prairie 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. 12 of the 72 active systems in Todd County (17%) are also owned by a local government.
Does Long Prairie have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2003. The violations listed here began between May 1991 and October 2003. By type: 4 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 4 as archived and 1 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 |
|---|---|---|---|---|
| 2003-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1991-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1991-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Long Prairie: frequently asked questions
Who runs Long Prairie?
Long Prairie (PWSID MN1770007) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Long Prairie serve?
Long Prairie reports serving 3,744 people through 1,149 service connections in Todd County, Minnesota.
Where does Long Prairie 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 Long Prairie have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 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 Long Prairie'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; 1 is health-based, and the most recent began in October 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 Long Prairie's water quality report?
As a community water system, Long Prairie 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 Todd County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Staples | Todd | 3,089 | Community | Groundwater |
| Browerville | Todd | 836 | Community | Groundwater |
| Clarissa | Todd | 662 | Community | Groundwater |
| Long Prairie Packing | Todd | 575 | Non-transient non-community | Groundwater |
| Bertha | Todd | 557 | Community | Groundwater |
| Eagle Bend | Todd | 545 | 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, “Long Prairie, PWSID MN1770007, Minnesota”, https://aquacensus.com/water-systems/minnesota/long-prairie-mn1770007 (data as of October 1, 2026).