Public water system · MT0004807
ActiveMcgregor Lakes Rv LLC
At a glance
Mcgregor Lakes Rv LLC (PWSID MT0004807) is an active transient non-community water system in Flathead County, Montana. It reports serving 82 people through 41 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is health-based, and the most recent began in April 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
82
Service connections
41
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Mcgregor Lakes Rv LLC compare with other water systems in Flathead County?
By EPA's size categories, Mcgregor Lakes Rv LLC 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 Lakes Rv LLC is about 43% 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 Lakes Rv LLC?
EPA lists Mcgregor Lakes Rv LLC 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 Lakes Rv LLC have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in April 2022. By type: 1 required treatment not met. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-04-02 | Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2D | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
The one violation in EPA's records.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Mcgregor Lakes Rv LLC: frequently asked questions
Who runs Mcgregor Lakes Rv LLC?
Mcgregor Lakes Rv LLC (PWSID MT0004807) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Mcgregor Lakes Rv LLC serve?
Mcgregor Lakes Rv LLC reports serving 82 people through 41 service connections in Flathead County, Montana.
Where does Mcgregor Lakes Rv LLC 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 Lakes Rv LLC have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in April 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Mcgregor Lakes Rv LLC'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 records list one violation for this system; it is health-based, and the most recent began in April 2022. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find Mcgregor Lakes Rv LLC's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mcgregor Lakes Rv LLC 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 Lakes Rv LLC, PWSID MT0004807, Montana”, https://aquacensus.com/water-systems/montana/mcgregor-lakes-rv-llc-mt0004807 (data as of October 1, 2026).