Public water system · MN1110019
ActivePine River
At a glance
Pine River (PWSID MN1110019) is an active community water system in Cass County, Minnesota. It reports serving 939 people through 349 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; 4 are health-based, and the most recent began in October 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
939
Service connections
349
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Pine River compare with other water systems in Cass County?
By EPA's size categories, Pine River is a small system (501 to 3,300 people). Cass County has 248 active public water systems, and Pine River is the 2nd-largest of them by population served. Its population served is about 9.6 times the county average of 98 people per system, and accounts for 3.9% of the 24,374 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 Pine River 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 Pine River?
EPA lists Pine River 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 248 active systems in Cass County (3.2%) are also owned by a local government.
Does Pine River have drinking water violations?
EPA's records list 5 violations for this system; 4 are health-based, and the most recent began in October 2010. The violations listed here began between October 1993 and October 2010. By type: 4 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2010-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | 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.
Pine River: frequently asked questions
Who runs Pine River?
Pine River (PWSID MN1110019) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Pine River serve?
Pine River reports serving 939 people through 349 service connections in Cass County, Minnesota.
Where does Pine River 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 Pine River have any drinking water violations?
EPA's records list 5 violations for this system; 4 are health-based, and the most recent began in October 2010. 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 Pine River'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; 4 are health-based, and the most recent began in October 2010. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Pine River's water quality report?
As a community water system, Pine River 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 Cass County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Walker | Cass | 990 | Community | Groundwater |
| Cass Lake Wayside Rest Mndot | Cass | 873 | Transient non-community | Groundwater |
| Cass Lake | Cass | 691 | Community | Groundwater |
| Pillager | Cass | 523 | Community | Groundwater |
| The One Stop | Cass | 500 | Transient non-community | Groundwater |
| Y Mart | Cass | 500 | 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, “Pine River, PWSID MN1110019, Minnesota”, https://aquacensus.com/water-systems/minnesota/pine-river-mn1110019 (data as of October 1, 2026).