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Public water system · MN5240209

Active

Three Oaks Winery

At a glance

Three Oaks Winery (PWSID MN5240209) is an active transient non-community water system in Freeborn County, Minnesota. It reports serving 30 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.

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

Population served

30

Service connections

1

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDMN5240209
System typeTransient non-community water system
Activity statusActive
Population served30
Service connections1
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyMN state drinking water program
City served—
StateMinnesota
ZIP—
CountyFreeborn County

How does Three Oaks Winery compare with other water systems in Freeborn County?

By EPA's size categories, Three Oaks Winery 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 0.1% 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 transient non-community water system reports serving 144 people, so Three Oaks Winery is well below that figure.

What does “transient non-community water system” mean?

A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Minnesota has 5,008 active transient non-community water systems, 77% 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 Three Oaks Winery?

EPA lists Three Oaks Winery as privately owned. 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. 32 of the 55 active systems in Freeborn County (58%) are also privately owned.

Does Three Oaks Winery have drinking water violations?

No SDWA violations on record.

EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Three Oaks Winery. For the latest compliance status, check EPA ECHO for current compliance history.

Three Oaks Winery: frequently asked questions

Who runs Three Oaks Winery?

Three Oaks Winery (PWSID MN5240209) is a transient non-community water system privately owned. It is regulated by the MN state drinking water program.

How many people does Three Oaks Winery serve?

Three Oaks Winery reports serving 30 people through 1 service connection in Freeborn County, Minnesota.

Where does Three Oaks Winery 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 Three Oaks Winery have any drinking water violations?

EPA's Safe Drinking Water Act records list no violations for this system.

Is Three Oaks Winery'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the MN state drinking water program.

Where can I find Three Oaks Winery's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Three Oaks Winery is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in Freeborn County

Water systemCountyPopulation servedTypeSource
Albert LeaFreeborn18,492CommunityGroundwater
Albert Lea Information Center MndotFreeborn1,306Transient non-communityGroundwater
Clarks GroveFreeborn695CommunityGroundwater
AldenFreeborn661CommunityGroundwater
Oakland Woods Rest Area MndotFreeborn644Transient non-communityGroundwater
Mayo Clinic Health System - Albert LeaFreeborn600Non-transient non-communityPurchased 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, “Three Oaks Winery, PWSID MN5240209, Minnesota”, https://aquacensus.com/water-systems/minnesota/three-oaks-winery-mn5240209 (data as of October 1, 2026).