Public water system · MN5480259
ActiveDairy Queen-Onamia
At a glance
Dairy Queen-Onamia (PWSID MN5480259) is an active transient non-community water system in Mille Lacs County, Minnesota. It reports serving 275 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
275
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Dairy Queen-Onamia compare with other water systems in Mille Lacs County?
By EPA's size categories, Dairy Queen-Onamia is a very small system (500 people or fewer). Mille Lacs County has 91 active public water systems. Its population served is about 24% above the county average of 221 people per system, and accounts for 1.4% of the 20,104 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 Dairy Queen-Onamia is about twice 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 Dairy Queen-Onamia?
EPA lists Dairy Queen-Onamia 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. 78 of the 91 active systems in Mille Lacs County (86%) are also privately owned.
Does Dairy Queen-Onamia 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 Dairy Queen-Onamia. For the latest compliance status, check EPA ECHO for current compliance history.
Dairy Queen-Onamia: frequently asked questions
Who runs Dairy Queen-Onamia?
Dairy Queen-Onamia (PWSID MN5480259) is a transient non-community water system privately owned. It is regulated by the MN state drinking water program.
How many people does Dairy Queen-Onamia serve?
Dairy Queen-Onamia reports serving 275 people through 1 service connection in Mille Lacs County, Minnesota.
Where does Dairy Queen-Onamia 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 Dairy Queen-Onamia have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Dairy Queen-Onamia'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 Dairy Queen-Onamia's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Dairy Queen-Onamia 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 Mille Lacs County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Princeton | Mille Lacs | 5,421 | Community | Groundwater |
| Milaca | Mille Lacs | 3,043 | Community | Groundwater |
| New Life Christian Center | Mille Lacs | 1,000 | Transient non-community | Groundwater |
| Onamia | Mille Lacs | 831 | Community | Groundwater |
| Isle | Mille Lacs | 820 | Community | Groundwater |
| Broberg'S Country Store | Mille Lacs | 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, “Dairy Queen-Onamia, PWSID MN5480259, Minnesota”, https://aquacensus.com/water-systems/minnesota/dairy-queen-onamia-mn5480259 (data as of October 1, 2026).