Public water system · MT0004901
ActiveWest Glacier Koa Campground Expansion
At a glance
West Glacier Koa Campground Expansion (PWSID MT0004901) is an active transient non-community water system in Flathead County, Montana. It reports serving 130 people through 57 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
130
Service connections
57
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does West Glacier Koa Campground Expansion compare with other water systems in Flathead County?
By EPA's size categories, West Glacier Koa Campground Expansion is a very small system (500 people or fewer). Flathead County has 327 active public water systems. Its population served is about 60% below the county average of 324 people per system, and accounts for 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 West Glacier Koa Campground Expansion is roughly in line with 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 West Glacier Koa Campground Expansion?
EPA lists West Glacier Koa Campground Expansion as owned by the federal government. 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. 20 of the 327 active systems in Flathead County (6.1%) are also owned by the federal government.
Does West Glacier Koa Campground Expansion have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2021. By type: 1 monitoring. 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 |
|---|---|---|---|---|
| 2021-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | 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.
West Glacier Koa Campground Expansion: frequently asked questions
Who runs West Glacier Koa Campground Expansion?
West Glacier Koa Campground Expansion (PWSID MT0004901) is a transient non-community water system owned by the federal government. It is regulated by the MT state drinking water program.
How many people does West Glacier Koa Campground Expansion serve?
West Glacier Koa Campground Expansion reports serving 130 people through 57 service connections in Flathead County, Montana.
Where does West Glacier Koa Campground Expansion 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 West Glacier Koa Campground Expansion have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2021. 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 West Glacier Koa Campground Expansion'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 not health-based, and the most recent began in October 2021. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find West Glacier Koa Campground Expansion's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. West Glacier Koa Campground Expansion 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, “West Glacier Koa Campground Expansion, PWSID MT0004901, Montana”, https://aquacensus.com/water-systems/montana/west-glacier-koa-campground-expansion-mt0004901 (data as of October 1, 2026).