Public water system · MT0002142
ActiveMelrose Bar
At a glance
Melrose Bar (PWSID MT0002142) is an active transient non-community water system in Silver Bow County, Montana. It reports serving 64 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in May 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
64
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Melrose Bar compare with other water systems in Silver Bow County?
By EPA's size categories, Melrose Bar is a very small system (500 people or fewer). Silver Bow County has 24 active public water systems. Its population served is well below the county average of 1,797 people per system, and accounts for 0.1% of the 43,130 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 Melrose Bar is about 56% 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 Melrose Bar?
EPA lists Melrose Bar 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. 18 of the 24 active systems in Silver Bow County (75%) are also privately owned.
Does Melrose Bar have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in May 2026. The violations listed here began between July 2021 and May 2026. By type: 9 monitoring, 2 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Revised Total Coliform Rule (10 of them). EPA lists 9 as resolved, 2 as archived and 1 as unaddressed. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-05-16 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Unaddressed |
| 2026-04-03 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2026-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2025-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2025-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | 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.
Melrose Bar: frequently asked questions
Who runs Melrose Bar?
Melrose Bar (PWSID MT0002142) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Melrose Bar serve?
Melrose Bar reports serving 64 people through 1 service connection in Silver Bow County, Montana.
Where does Melrose Bar 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 Melrose Bar have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in May 2026. 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 Melrose Bar'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, one is health-based, and the most recent began in May 2026. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find Melrose Bar's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Melrose Bar 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 Silver Bow County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Butte Silverbow Water Dept | Silver Bow | 33,000 | Community | Surface water |
| Montana Technological University | Silver Bow | 3,200 | Non-transient non-community | Purchased surface water |
| Fairmont Hot Springs Resort | Silver Bow | 1,965 | Community | Groundwater |
| Harrington Bottling Co | Silver Bow | 1,001 | Non-transient non-community | Groundwater |
| Divide Feely North Rest Stop | Silver Bow | 500 | Transient non-community | Groundwater |
| Divide Feely South Rest Stop | Silver Bow | 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, “Melrose Bar, PWSID MT0002142, Montana”, https://aquacensus.com/water-systems/montana/melrose-bar-mt0002142 (data as of October 1, 2026).