Public water system · MN5820573
ActiveMahtomedi Dairy Queen
At a glance
Mahtomedi Dairy Queen (PWSID MN5820573) is an active transient non-community water system in Washington County, Minnesota. It reports serving 200 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
200
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Mahtomedi Dairy Queen compare with other water systems in Washington County?
By EPA's size categories, Mahtomedi Dairy Queen is a very small system (500 people or fewer). Washington County has 192 active public water systems. Its population served is well below the county average of 1,376 people per system, and accounts for less than 0.1% of the 264,205 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 Mahtomedi Dairy Queen is about 39% above 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 Mahtomedi Dairy Queen?
EPA lists Mahtomedi Dairy Queen 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. 149 of the 192 active systems in Washington County (78%) are also privately owned.
Does Mahtomedi Dairy Queen 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 Mahtomedi Dairy Queen. For the latest compliance status, check EPA ECHO for current compliance history.
Mahtomedi Dairy Queen: frequently asked questions
Who runs Mahtomedi Dairy Queen?
Mahtomedi Dairy Queen (PWSID MN5820573) is a transient non-community water system privately owned. It is regulated by the MN state drinking water program.
How many people does Mahtomedi Dairy Queen serve?
Mahtomedi Dairy Queen reports serving 200 people through 1 service connection in Washington County, Minnesota.
Where does Mahtomedi Dairy Queen 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 Mahtomedi Dairy Queen have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Mahtomedi Dairy Queen'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 Mahtomedi Dairy Queen's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mahtomedi Dairy Queen 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 Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Woodbury | Washington | 82,643 | Community | Groundwater |
| Cottage Grove | Washington | 42,760 | Community | Groundwater |
| Oakdale | Washington | 30,144 | Community | Groundwater |
| Stillwater | Washington | 19,462 | Community | Groundwater |
| Hugo | Washington | 12,047 | Community | Groundwater |
| Forest Lake | Washington | 11,800 | 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, “Mahtomedi Dairy Queen, PWSID MN5820573, Minnesota”, https://aquacensus.com/water-systems/minnesota/mahtomedi-dairy-queen-mn5820573 (data as of October 1, 2026).