Public water system · MT0003252
ActiveFallon Water Well Association
At a glance
Fallon Water Well Association (PWSID MT0003252) is an active transient non-community water system in Prairie County, Montana. It reports serving 47 people through 15 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 November 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
47
Service connections
15
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Fallon Water Well Association compare with other water systems in Prairie County?
By EPA's size categories, Fallon Water Well Association is a very small system (500 people or fewer). Prairie County has 7 active public water systems, and Fallon Water Well Association is the 4th-largest of them by population served. Its population served is about 34% below the county average of 72 people per system, and accounts for 9.4% of the 501 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 Fallon Water Well Association is well 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 Fallon Water Well Association?
EPA lists Fallon Water Well Association 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. 5 of the 7 active systems in Prairie County (71%) are also privately owned.
Does Fallon Water Well Association have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in November 2025. The violations listed here began between January 2016 and November 2025. By type: 8 monitoring, 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (9 of them). 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 |
|---|---|---|---|---|
| 2025-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2019-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2016-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-04-02 | Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | 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.
Fallon Water Well Association: frequently asked questions
Who runs Fallon Water Well Association?
Fallon Water Well Association (PWSID MT0003252) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Fallon Water Well Association serve?
Fallon Water Well Association reports serving 47 people through 15 service connections in Prairie County, Montana.
Where does Fallon Water Well Association 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 Fallon Water Well Association 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 November 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 Fallon Water Well Association'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 November 2025. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find Fallon Water Well Association's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Fallon Water Well Association 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 Prairie County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Terry High School District No 5 | Prairie | 133 | Non-transient non-community | Groundwater |
| Terry Downtown Wua | Prairie | 115 | Transient non-community | Groundwater |
| Prairie Community Hospital | Prairie | 80 | Non-transient non-community | Groundwater |
| Bolin Elementary School Dist 5 | Prairie | 45 | Non-transient non-community | Groundwater |
| M & D Sprinklers | Prairie | 41 | Transient non-community | Groundwater |
| Diamond Motel and Campground LLC | Prairie | 40 | 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, “Fallon Water Well Association, PWSID MT0003252, Montana”, https://aquacensus.com/water-systems/montana/fallon-water-well-association-mt0003252 (data as of October 1, 2026).