Public water system · MT0000763

Active

Great Falls Koa Kampground

At a glance

Great Falls Koa Kampground (PWSID MT0000763) is an active non-transient non-community water system in Cascade County, Montana. It reports serving 287 people through 130 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in May 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

287

Service connections

130

Primary source

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDMT0000763

System typeNon-transient non-community water system

Activity statusActive

Population served287

Service connections130

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyMT state drinking water program

City servedGreat Falls

StateMontana

ZIP—

CountyCascade County

How does Great Falls Koa Kampground compare with other water systems in Cascade County?

By EPA's size categories, Great Falls Koa Kampground is a very small system (500 people or fewer). Cascade County has 98 active public water systems. Its population served is well below the county average of 985 people per system, and accounts for 0.3% of the 96,513 people reported by systems filed under the county. Across Montana, the 2,378 active systems average 489 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Great Falls Koa Kampground is about 33% below that figure.

What does “non-transient non-community water system” mean?

A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Montana has 319 active non-transient non-community water systems, 13% 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 Great Falls Koa Kampground?

EPA lists Great Falls Koa Kampground 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. 73 of the 98 active systems in Cascade County (74%) are also privately owned.

Does Great Falls Koa Kampground have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in May 2025. The violations listed here began between January 2020 and May 2025. By type: 12 monitoring and reporting. The contaminants or rules involved are E. coli, Lead and Copper Rule, Dichloromethane and Fluoride. EPA lists 12 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
2025-05-13	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2020-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Dichloromethanecode 2964	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Fluoridecode 1025	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Berylliumcode 1075	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Thalliumcode 1085	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	1,2,4-Trichlorobenzenecode 2378	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	trans-1,2-Dichloroethylenecode 2979	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Cadmiumcode 1015	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Xylenes, Totalcode 2955	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Carbon tetrachloridecode 2982	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Mercurycode 1035	No	Resolved

The 12 most recent violations in EPA's records, newest first.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.

Great Falls Koa Kampground: frequently asked questions

Who runs Great Falls Koa Kampground?

Great Falls Koa Kampground (PWSID MT0000763) is a non-transient non-community water system privately owned. It is regulated by the MT state drinking water program.

How many people does Great Falls Koa Kampground serve?

Great Falls Koa Kampground reports serving 287 people through 130 service connections in Cascade County, Montana.

Where does Great Falls Koa Kampground 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 Great Falls Koa Kampground have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in May 2025. 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 Great Falls Koa Kampground'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in May 2025. For current results, consult EPA ECHO, or the MT state drinking water program.

Where can I find Great Falls Koa Kampground's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Great Falls Koa Kampground is a non-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 Cascade County

Water system	County	Population served	Type	Source
Great Falls City of	Cascade	60,000	Community	Surface water
Malmstrom Air Force Base	Cascade	8,850	Community	Purchased surface water
Source Giant Springs Inc.	Cascade	3,007	Non-transient non-community	Groundwater
Montana Expo Park Cascade County	Cascade	2,510	Transient non-community	Purchased surface water
Sun Prairie Village County	Cascade	1,800	Community	Groundwater
University of Providence	Cascade	1,472	Non-transient non-community	Purchased surface water

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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, “Great Falls Koa Kampground, PWSID MT0000763, Montana”, https://aquacensus.com/water-systems/montana/great-falls-koa-kampground-mt0000763 (data as of October 1, 2026).