Public water system · MT0001979
ActiveBearmouth Rest Stop Eastbound
At a glance
Bearmouth Rest Stop Eastbound (PWSID MT0001979) is an active transient non-community water system in Granite County, Montana. It reports serving 2,000 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,000
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Bearmouth Rest Stop Eastbound compare with other water systems in Granite County?
By EPA's size categories, Bearmouth Rest Stop Eastbound is a small system (501 to 3,300 people). Granite County has 21 active public water systems, and Bearmouth Rest Stop Eastbound is the largest of them by population served. Its population served is about 5.3 times the county average of 380 people per system, and accounts for 25% 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 transient non-community water system reports serving 144 people, so Bearmouth Rest Stop Eastbound is about 14 times 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 Bearmouth Rest Stop Eastbound?
EPA lists Bearmouth Rest Stop Eastbound as owned by a state 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 21 active systems in Granite County (9.5%) are also owned by a state government.
Does Bearmouth Rest Stop Eastbound have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2025. The violations listed here began between December 2001 and March 2025. By type: 10 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (9 of them). EPA lists 11 as resolved and 1 as archived. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2014-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2012-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-12-01 | 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.
Bearmouth Rest Stop Eastbound: frequently asked questions
Who runs Bearmouth Rest Stop Eastbound?
Bearmouth Rest Stop Eastbound (PWSID MT0001979) is a transient non-community water system owned by a state government. It is regulated by the MT state drinking water program.
How many people does Bearmouth Rest Stop Eastbound serve?
Bearmouth Rest Stop Eastbound reports serving 2,000 people through 1 service connection in Granite County, Montana.
Where does Bearmouth Rest Stop Eastbound 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 Bearmouth Rest Stop Eastbound 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 March 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 Bearmouth Rest Stop Eastbound'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 March 2025. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find Bearmouth Rest Stop Eastbound's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Bearmouth Rest Stop Eastbound 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 Granite County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bearmouth Rest Stop Westbound | Granite | 2,000 | Transient non-community | Groundwater |
| Philipsburg Town of | Granite | 1,360 | Community | Surface water |
| 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 |
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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, “Bearmouth Rest Stop Eastbound, PWSID MT0001979, Montana”, https://aquacensus.com/water-systems/montana/bearmouth-rest-stop-eastbound-mt0001979 (data as of October 1, 2026).