Public water system · MT0004443
ActiveMcgregor Lake Highlands
At a glance
Mcgregor Lake Highlands (PWSID MT0004443) is an active transient non-community water system in Flathead County, Montana. It reports serving 38 people through 22 service connections. 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
38
Service connections
22
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Mcgregor Lake Highlands compare with other water systems in Flathead County?
By EPA's size categories, Mcgregor Lake Highlands is a very small system (500 people or fewer). Flathead County has 327 active public water systems. Its population served is well below the county average of 324 people per system, and accounts for less than 0.1% of the 105,781 people reported by systems filed under the county. Across Montana, the 2,378 active systems average 489 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Mcgregor Lake Highlands 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. Montana has 1,206 active transient non-community water systems, 51% of the state's 2,378 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,994 Montana systems (84%) list groundwater as their primary source.
Who owns and regulates Mcgregor Lake Highlands?
EPA lists Mcgregor Lake Highlands as privately owned. The MT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 263 of the 327 active systems in Flathead County (80%) are also privately owned.
Does Mcgregor Lake Highlands 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 Mcgregor Lake Highlands. For the latest compliance status, check EPA ECHO for current compliance history.
Mcgregor Lake Highlands: frequently asked questions
Who runs Mcgregor Lake Highlands?
Mcgregor Lake Highlands (PWSID MT0004443) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Mcgregor Lake Highlands serve?
Mcgregor Lake Highlands reports serving 38 people through 22 service connections in Flathead County, Montana.
Where does Mcgregor Lake Highlands 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 Mcgregor Lake Highlands have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Mcgregor Lake Highlands' 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 MT state drinking water program.
Where can I find Mcgregor Lake Highlands' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mcgregor Lake Highlands 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 Flathead County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kalispell Public Works | Flathead | 25,000 | Community | Groundwater |
| Whitefish City of | Flathead | 10,418 | Community | Surface water |
| Flathead County Water and Sewer | Flathead | 7,775 | Community | Groundwater |
| Bigfork County Water and Sewer | Flathead | 6,100 | Community | Groundwater |
| Columbia Falls City of | Flathead | 4,450 | Community | Groundwater |
| Ridge Run | Flathead | 3,500 | 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, “Mcgregor Lake Highlands, PWSID MT0004443, Montana”, https://aquacensus.com/water-systems/montana/mcgregor-lake-highlands-mt0004443 (data as of October 1, 2026).