Public water system · MT0062380
ActiveSt Regis Work Center
At a glance
St Regis Work Center (PWSID MT0062380) is an active transient non-community water system in Mineral County, Montana. It reports serving 33 people through 14 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
33
Service connections
14
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does St Regis Work Center compare with other water systems in Mineral County?
By EPA's size categories, St Regis Work Center is a very small system (500 people or fewer). Mineral County has 37 active public water systems. Its population served is well below the county average of 454 people per system, and accounts for 0.2% of the 16,812 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 St Regis Work Center 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 St Regis Work Center?
EPA lists St Regis Work Center as owned by the federal 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 37 active systems in Mineral County (8.1%) are also owned by the federal government.
Does St Regis Work Center have drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2019. The violations listed here began between May 1999 and January 2019. By type: 7 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2019-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-10-01 | 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 |
| 1999-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 7 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.
St Regis Work Center: frequently asked questions
Who runs St Regis Work Center?
St Regis Work Center (PWSID MT0062380) is a transient non-community water system owned by the federal government. It is regulated by the MT state drinking water program.
How many people does St Regis Work Center serve?
St Regis Work Center reports serving 33 people through 14 service connections in Mineral County, Montana.
Where does St Regis Work Center 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 St Regis Work Center have any drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2019. 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 St Regis Work Center'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. EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2019. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find St Regis Work Center's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. St Regis Work Center 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 Mineral County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Quartz Flat Rest Stop East | Mineral | 3,301 | Transient non-community | Groundwater |
| Quartz Flat Rest Stop West | Mineral | 3,301 | Transient non-community | Groundwater |
| Dena Mora Saltese East Rest | Mineral | 3,000 | Transient non-community | Groundwater |
| Dena Mora Saltese West Rest | Mineral | 2,000 | Transient non-community | Groundwater |
| Superior Town of | Mineral | 1,100 | Community | Groundwater |
| Lincolns Silver Dollar Bar | Mineral | 520 | 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, “St Regis Work Center, PWSID MT0062380, Montana”, https://aquacensus.com/water-systems/montana/st-regis-work-center-mt0062380 (data as of October 1, 2026).