Public water system · MT0005070
ActiveRocky Mountain Supply Townsend
At a glance
Rocky Mountain Supply Townsend (PWSID MT0005070) is an active transient non-community water system in Broadwater County, Montana. It reports serving 200 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
200
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Rocky Mountain Supply Townsend compare with other water systems in Broadwater County?
By EPA's size categories, Rocky Mountain Supply Townsend is a very small system (500 people or fewer). Broadwater County has 20 active public water systems. Its population served is about 57% below the county average of 465 people per system, and accounts for 2.2% of the 9,301 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 Rocky Mountain Supply Townsend is about 39% above 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 Rocky Mountain Supply Townsend?
EPA lists Rocky Mountain Supply Townsend 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. 16 of the 20 active systems in Broadwater County (80%) are also privately owned.
Does Rocky Mountain Supply Townsend have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2025. The violations listed here began between July 2023 and January 2025. By type: 2 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2025-01-21 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2023-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
All 4 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.
Rocky Mountain Supply Townsend: frequently asked questions
Who runs Rocky Mountain Supply Townsend?
Rocky Mountain Supply Townsend (PWSID MT0005070) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Rocky Mountain Supply Townsend serve?
Rocky Mountain Supply Townsend reports serving 200 people through 1 service connection in Broadwater County, Montana.
Where does Rocky Mountain Supply Townsend 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 Rocky Mountain Supply Townsend have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 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 Rocky Mountain Supply Townsend'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 4 violations for this system; none is health-based, and the most recent began in January 2025. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find Rocky Mountain Supply Townsend's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Rocky Mountain Supply Townsend 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 Broadwater County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Wheat Montana Bakery | Broadwater | 2,453 | Non-transient non-community | Groundwater |
| Town Pump Three Forks 1 | Broadwater | 2,245 | Non-transient non-community | Groundwater |
| Townsend City of | Broadwater | 2,000 | Community | Groundwater |
| Bridger Brewing Three Forks | Broadwater | 470 | Non-transient non-community | Groundwater |
| Steer Inn Teasers Restaurant and Lounge | Broadwater | 233 | Non-transient non-community | Groundwater |
| Canyon Ferry Lake Koa | Broadwater | 218 | 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, “Rocky Mountain Supply Townsend, PWSID MT0005070, Montana”, https://aquacensus.com/water-systems/montana/rocky-mountain-supply-townsend-mt0005070 (data as of October 1, 2026).