Public water system · MN1480001
ActiveIsle
At a glance
Isle (PWSID MN1480001) is an active community water system in Mille Lacs County, Minnesota. It reports serving 820 people through 479 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
820
Service connections
479
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Isle compare with other water systems in Mille Lacs County?
By EPA's size categories, Isle is a small system (501 to 3,300 people). Mille Lacs County has 91 active public water systems, and Isle is the 5th-largest of them by population served. Its population served is about 3.7 times the county average of 221 people per system, and accounts for 4.1% of the 20,104 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 Isle 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 Isle?
EPA lists Isle 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. 9 of the 91 active systems in Mille Lacs County (9.9%) are also owned by a local government.
Does Isle 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 July 2022 and October 2023. By type: 3 monitoring and reporting. The contaminants or rules involved are Combined Radium (-226 and -228), Total trihalomethanes (TTHM) and Haloacetic acids (HAA5). EPA lists 2 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 |
|---|---|---|---|---|
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 2022-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2022-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | 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.
Isle: frequently asked questions
Who runs Isle?
Isle (PWSID MN1480001) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Isle serve?
Isle reports serving 820 people through 479 service connections in Mille Lacs County, Minnesota.
Where does Isle 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 Isle 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 Isle'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 Isle's water quality report?
As a community water system, Isle 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 Mille Lacs County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Princeton | Mille Lacs | 5,421 | Community | Groundwater |
| Milaca | Mille Lacs | 3,043 | Community | Groundwater |
| New Life Christian Center | Mille Lacs | 1,000 | Transient non-community | Groundwater |
| Onamia | Mille Lacs | 831 | Community | Groundwater |
| Broberg'S Country Store | Mille Lacs | 500 | Transient non-community | Groundwater |
| Foreston | Mille Lacs | 340 | 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, “Isle, PWSID MN1480001, Minnesota”, https://aquacensus.com/water-systems/minnesota/isle-mn1480001 (data as of October 1, 2026).