Public water system · MT0000304
ActivePhilipsburg Town of
At a glance
Town of Philipsburg (PWSID MT0000304) is an active community water system in Granite County, Montana. It reports serving 1,360 people through 540 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in February 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,360
Service connections
540
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Town of Philipsburg compare with other water systems in Granite County?
By EPA's size categories, Town of Philipsburg is a small system (501 to 3,300 people). Granite County has 21 active public water systems, and Town of Philipsburg is the 3rd-largest of them by population served. Its population served is about 3.6 times the county average of 380 people per system, and accounts for 17% of the 7,984 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 Town of Philipsburg 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 60 Montana systems (2.5%) list surface water as their primary source.
Who owns and regulates Town of Philipsburg?
EPA lists Town of Philipsburg 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. 3 of the 21 active systems in Granite County (14%) are also owned by a local government.
Does Town of Philipsburg have drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in February 2026. The violations listed here began between April 2025 and February 2026. By type: 11 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Surface Water Treatment Rule (11 of them). EPA lists 11 as addressed and 1 as archived. Addressed means the violation is not resolved or archived and is covered by formal enforcement. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-02-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2026-01-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2025-12-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2025-11-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2025-10-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2025-09-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2025-08-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2025-07-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2025-06-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2025-05-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2025-04-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Addressed |
| 2025-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Archived |
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.
Town of Philipsburg: frequently asked questions
Who runs Town of Philipsburg?
Town of Philipsburg (PWSID MT0000304) is a community water system owned by a local government. It is regulated by the MT state drinking water program.
How many people does Town of Philipsburg serve?
Town of Philipsburg reports serving 1,360 people through 540 service connections in Granite County, Montana.
Where does Town of Philipsburg get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Town of Philipsburg have any drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in February 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 Town of Philipsburg'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, 12 are health-based, and the most recent began in February 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Town of Philipsburg's water quality report?
As a community water system, Town of Philipsburg 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 Granite County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bearmouth Rest Stop Eastbound | Granite | 2,000 | Transient non-community | Groundwater |
| Bearmouth Rest Stop Westbound | Granite | 2,000 | Transient non-community | Groundwater |
| Fics Kwik Six | Granite | 405 | Transient non-community | Groundwater |
| Discovery Ski Area | Granite | 401 | Transient non-community | Groundwater |
| Parkers | Granite | 256 | Transient non-community | Groundwater |
| Garnet Ghost Town Blm | Granite | 254 | 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, “Philipsburg Town of, PWSID MT0000304, Montana”, https://aquacensus.com/water-systems/montana/philipsburg-town-of-mt0000304 (data as of October 1, 2026).