Public water system · MT0005121
ActiveSunny Brook Colony
At a glance
Sunny Brook Colony (PWSID MT0005121) is an active community water system in Chouteau County, Montana. It reports serving 80 people through 13 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
80
Service connections
13
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Sunny Brook Colony compare with other water systems in Chouteau County?
By EPA's size categories, Sunny Brook Colony is a very small system (500 people or fewer). Chouteau County has 12 active public water systems. Its population served is well below the county average of 288 people per system, and accounts for 2.3% of the 3,456 people reported by systems filed under the county. Across Montana, the 2,378 active systems average 489 people each. Nationally, the average active community water system reports serving 6,703 people, so Sunny Brook Colony is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Montana has 853 active community water systems, 36% 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 Sunny Brook Colony?
EPA lists Sunny Brook Colony 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. 2 of the 12 active systems in Chouteau County (17%) are also privately owned.
Does Sunny Brook Colony 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 Sunny Brook Colony. For the latest compliance status, check EPA ECHO for current compliance history.
Sunny Brook Colony: frequently asked questions
Who runs Sunny Brook Colony?
Sunny Brook Colony (PWSID MT0005121) is a community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Sunny Brook Colony serve?
Sunny Brook Colony reports serving 80 people through 13 service connections in Chouteau County, Montana.
Where does Sunny Brook Colony 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 Sunny Brook Colony have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Sunny Brook Colony'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 the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Sunny Brook Colony's water quality report?
As a community water system, Sunny Brook Colony must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Chouteau County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Fort Benton City of | Chouteau | 1,500 | Community | Groundwater |
| Big Sandy Town of | Chouteau | 608 | Community | Groundwater |
| Highwood County Water and Sewer District | Chouteau | 280 | Community | Groundwater |
| Geraldine Town of | Chouteau | 260 | Community | Groundwater |
| Loma County Water District | Chouteau | 200 | Community | Surface water |
| Carter Chouteau Co Water Dist | Chouteau | 150 | Community | 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, “Sunny Brook Colony, PWSID MT0005121, Montana”, https://aquacensus.com/water-systems/montana/sunny-brook-colony-mt0005121 (data as of October 1, 2026).