Public water system · MN5250280
ActiveMayo Clinic Health Systems-Lake City
At a glance
Mayo Clinic Health Systems-Lake City (PWSID MN5250280) is an active non-transient non-community water system in Goodhue County, Minnesota. It reports serving 325 people through 3 service connections. Its primary water source is purchased 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
325
Service connections
3
Primary source
GWP
Purchased groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Mayo Clinic Health Systems-Lake City compare with other water systems in Goodhue County?
By EPA's size categories, Mayo Clinic Health Systems-Lake City is a very small system (500 people or fewer). Goodhue County has 90 active public water systems. Its population served is about 33% below the county average of 489 people per system, and accounts for 0.7% of the 43,962 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Mayo Clinic Health Systems-Lake City is about 24% below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Minnesota has 470 active non-transient non-community water systems, 7.3% of the state's 6,465 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 89 Minnesota systems (1.4%) list purchased groundwater as their primary source.
Who owns and regulates Mayo Clinic Health Systems-Lake City?
EPA lists Mayo Clinic Health Systems-Lake City 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. 75 of the 90 active systems in Goodhue County (83%) are also privately owned.
Does Mayo Clinic Health Systems-Lake City 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 Mayo Clinic Health Systems-Lake City. For the latest compliance status, check EPA ECHO for current compliance history.
Mayo Clinic Health Systems-Lake City: frequently asked questions
Who runs Mayo Clinic Health Systems-Lake City?
Mayo Clinic Health Systems-Lake City (PWSID MN5250280) is a non-transient non-community water system privately owned. It is regulated by the MN state drinking water program.
How many people does Mayo Clinic Health Systems-Lake City serve?
Mayo Clinic Health Systems-Lake City reports serving 325 people through 3 service connections in Goodhue County, Minnesota.
Where does Mayo Clinic Health Systems-Lake City get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Mayo Clinic Health Systems-Lake City have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Mayo Clinic Health Systems-Lake City'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 Mayo Clinic Health Systems-Lake City's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mayo Clinic Health Systems-Lake City is a non-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 Goodhue County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Red Wing | Goodhue | 16,459 | Community | Groundwater |
| Cannon Falls | Goodhue | 4,237 | Community | Groundwater |
| Pine Island | Goodhue | 3,324 | Community | Groundwater |
| Zumbrota | Goodhue | 3,172 | Community | Groundwater |
| Kenyon | Goodhue | 1,817 | Community | Groundwater |
| Goodhue | Goodhue | 1,200 | 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, “Mayo Clinic Health Systems-Lake City, PWSID MN5250280, Minnesota”, https://aquacensus.com/water-systems/minnesota/mayo-clinic-health-systems-lake-city-mn5250280 (data as of October 1, 2026).