Public water system · MN1240016

Active

Twin Lakes

At a glance

Twin Lakes (PWSID MN1240016) is an active community water system in Freeborn County, Minnesota. It reports serving 134 people through 82 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in January 2026.

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

Population served

134

Service connections

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDMN1240016

System typeCommunity water system

Activity statusActive

Population served134

Service connections82

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyMN state drinking water program

City served—

StateMinnesota

ZIP—

CountyFreeborn County

How does Twin Lakes compare with other water systems in Freeborn County?

By EPA's size categories, Twin Lakes is a very small system (500 people or fewer). Freeborn County has 55 active public water systems. Its population served is well below the county average of 526 people per system, and accounts for 0.5% of the 28,918 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 Twin Lakes 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 Twin Lakes?

EPA lists Twin Lakes 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. 19 of the 55 active systems in Freeborn County (35%) are also owned by a local government.

Does Twin Lakes have drinking water violations?

EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in January 2026. The violations listed here began between January 1992 and January 2026. By type: 9 contaminant level above the legal limit, 1 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminant or rule involved most often is Gross alpha (excluding radon and uranium) (9 of them). EPA lists 7 as resolved and 4 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
2026-01-03	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2026-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Archived
2025-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Archived
2025-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Archived
2020-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Resolved
2019-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Resolved
2019-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Resolved
2019-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Resolved
2011-08-24	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Resolved
2011-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Resolved
1992-01-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived

All 11 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.

Twin Lakes: frequently asked questions

Who runs Twin Lakes?

Twin Lakes (PWSID MN1240016) is a community water system owned by a local government. It is regulated by the MN state drinking water program.

How many people does Twin Lakes serve?

Twin Lakes reports serving 134 people through 82 service connections in Freeborn County, Minnesota.

Where does Twin Lakes 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 Twin Lakes have any drinking water violations?

EPA's records list 11 violations for this system; 9 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 Twin Lakes' 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 11 violations for this system; 9 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 Twin Lakes' water quality report?

As a community water system, Twin Lakes 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 Freeborn County

Water system	County	Population served	Type	Source
Albert Lea	Freeborn	18,492	Community	Groundwater
Albert Lea Information Center Mndot	Freeborn	1,306	Transient non-community	Groundwater
Clarks Grove	Freeborn	695	Community	Groundwater
Alden	Freeborn	661	Community	Groundwater
Oakland Woods Rest Area Mndot	Freeborn	644	Transient non-community	Groundwater
Mayo Clinic Health System - Albert Lea	Freeborn	600	Non-transient non-community	Purchased groundwater

Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

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, “Twin Lakes, PWSID MN1240016, Minnesota”, https://aquacensus.com/water-systems/minnesota/twin-lakes-mn1240016 (data as of October 1, 2026).