Public water system · MT0000287
ActiveMartinsdale Water and Sewer District
At a glance
Martinsdale Water and Sewer District (PWSID MT0000287) is an active community water system in Meagher County, Montana. It reports serving 75 people through 87 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2025.
This page covers its drinking water system only; sewer and wastewater service are not part of EPA's drinking water records.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75
Service connections
87
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Martinsdale Water and Sewer District compare with other water systems in Meagher County?
By EPA's size categories, Martinsdale Water and Sewer District is a very small system (500 people or fewer). Meagher County has 8 active public water systems, and Martinsdale Water and Sewer District is the 5th-largest of them by population served. Its population served is well below the county average of 228 people per system, and accounts for 4.1% of the 1,825 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 Martinsdale Water and Sewer District 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 Martinsdale Water and Sewer District?
EPA lists Martinsdale Water and Sewer District as owned by a local government. 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 8 active systems in Meagher County (25%) are also owned by a local government.
Does Martinsdale Water and Sewer District have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2025. The violations listed here began between April 2007 and November 2025. By type: 6 monitoring and reporting, 3 public notice, recordkeeping or other, 2 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 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 |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2018-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2013-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2008-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2008-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2007-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2007-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2007-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | 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.
Martinsdale Water and Sewer District: frequently asked questions
Who runs Martinsdale Water and Sewer District?
Martinsdale Water and Sewer District (PWSID MT0000287) is a community water system owned by a local government. It is regulated by the MT state drinking water program.
How many people does Martinsdale Water and Sewer District serve?
Martinsdale Water and Sewer District reports serving 75 people through 87 service connections in Meagher County, Montana.
Where does Martinsdale Water and Sewer District 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 Martinsdale Water and Sewer District 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 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 Martinsdale Water and Sewer District'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 November 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Martinsdale Water and Sewer District's water quality report?
As a community water system, Martinsdale Water and Sewer District 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 Meagher County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| White Sulphur Springs City of | Meagher | 1,000 | Community | Surface water |
| Showdown Ski Lift Inc. | Meagher | 448 | Transient non-community | Groundwater |
| Springdale Hutterite Colony | Meagher | 87 | Community | Groundwater |
| Bair Family Museum | Meagher | 83 | Transient non-community | Groundwater |
| Checkerboard Bar Motel and Tr Ct | Meagher | 52 | Transient non-community | Groundwater |
| Ringling Bar | Meagher | 47 | Transient non-community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Martinsdale Water and Sewer District, PWSID MT0000287, Montana”, https://aquacensus.com/water-systems/montana/martinsdale-water-and-sewer-district-mt0000287 (data as of October 1, 2026).