Public water system · MN1380001

Active

Beaver Bay

At a glance

Beaver Bay (PWSID MN1380001) is an active community water system in Lake County, Minnesota. It reports serving 130 people through 130 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in September 2023.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

130

Service connections

130

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDMN1380001

System typeCommunity water system

Activity statusActive

Population served130

Service connections130

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyMN state drinking water program

City served—

StateMinnesota

ZIP—

CountyLake County

How does Beaver Bay compare with other water systems in Lake County?

By EPA's size categories, Beaver Bay is a very small system (500 people or fewer). Lake County has 94 active public water systems. Its population served is about 32% below the county average of 190 people per system, and accounts for 0.7% of the 17,863 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 Beaver Bay 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 61 Minnesota systems (0.9%) list surface water as their primary source.

Who owns and regulates Beaver Bay?

EPA lists Beaver Bay 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. 3 of the 94 active systems in Lake County (3.2%) are also owned by a local government.

Does Beaver Bay have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in September 2023. The violations listed here began between March 2005 and September 2023. By type: 10 monitoring and reporting, 1 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (7 of them). EPA lists 10 as resolved and 2 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
2023-09-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Archived
2023-08-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Archived
2021-05-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2012-06-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2012-06-01	Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2010-11-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2010-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2008-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2005-05-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2005-04-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2005-03-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved

The 12 most recent 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.

Beaver Bay: frequently asked questions

Who runs Beaver Bay?

Beaver Bay (PWSID MN1380001) is a community water system owned by a local government. It is regulated by the MN state drinking water program.

How many people does Beaver Bay serve?

Beaver Bay reports serving 130 people through 130 service connections in Lake County, Minnesota.

Where does Beaver Bay get its water?

EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.

Does Beaver Bay have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in September 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 Beaver Bay'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. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in September 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 Beaver Bay's water quality report?

As a community water system, Beaver Bay 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 Lake County

Water system	County	Population served	Type	Source
Gooseberry Falls State Park	Lake	4,797	Transient non-community	Groundwater
Two Harbors	Lake	3,698	Community	Surface water
Silver Bay	Lake	1,826	Community	Surface water
Baptism River/Tettegouche State Park	Lake	1,473	Transient non-community	Groundwater
Split Rock Lighthouse Historic Site	Lake	967	Transient non-community	Groundwater
Betty'S Pies	Lake	500	Transient non-community	Purchased surface water

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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, “Beaver Bay, PWSID MN1380001, Minnesota”, https://aquacensus.com/water-systems/minnesota/beaver-bay-mn1380001 (data as of October 1, 2026).