Public water system · MT0000317
ActiveRoberts Wua Carbon Co Water and Sewer
At a glance
Roberts Wua Carbon Co Water and Sewer (PWSID MT0000317) is an active community water system in Carbon County, Montana. It reports serving 300 people through 138 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, none is health-based, and the most recent began in July 2022.
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
300
Service connections
138
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Roberts Wua Carbon Co Water and Sewer compare with other water systems in Carbon County?
By EPA's size categories, Roberts Wua Carbon Co Water and Sewer is a very small system (500 people or fewer). Carbon County has 36 active public water systems. Its population served is about 19% above the county average of 253 people per system, and accounts for 3.3% of the 9,106 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 Roberts Wua Carbon Co Water and Sewer 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 Roberts Wua Carbon Co Water and Sewer?
EPA lists Roberts Wua Carbon Co Water and Sewer 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. 7 of the 36 active systems in Carbon County (19%) are also owned by a local government.
Does Roberts Wua Carbon Co Water and Sewer have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2022. The violations listed here began between January 2003 and July 2022. By type: 7 monitoring and reporting and 5 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (6 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 |
|---|---|---|---|---|
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | 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 |
| 2016-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2009-01-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2004-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2004-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2003-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2003-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2003-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2003-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | 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.
Roberts Wua Carbon Co Water and Sewer: frequently asked questions
Who runs Roberts Wua Carbon Co Water and Sewer?
Roberts Wua Carbon Co Water and Sewer (PWSID MT0000317) is a community water system owned by a local government. It is regulated by the MT state drinking water program.
How many people does Roberts Wua Carbon Co Water and Sewer serve?
Roberts Wua Carbon Co Water and Sewer reports serving 300 people through 138 service connections in Carbon County, Montana.
Where does Roberts Wua Carbon Co Water and Sewer 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 Roberts Wua Carbon Co Water and Sewer 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 July 2022. 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 Roberts Wua Carbon Co Water and Sewer'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 July 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Roberts Wua Carbon Co Water and Sewer's water quality report?
As a community water system, Roberts Wua Carbon Co Water and Sewer 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 Carbon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Red Lodge Mtn Main Lodge | Carbon | 2,006 | Transient non-community | Groundwater |
| Red Lodge Water Dept | Carbon | 2,000 | Community | Groundwater |
| Bridger Town of | Carbon | 750 | Community | Groundwater |
| Joliet Town of | Carbon | 600 | Community | Groundwater |
| Fromberg Town of | Carbon | 498 | Community | Groundwater |
| Bridger Rest Area | Carbon | 400 | 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, “Roberts Wua Carbon Co Water and Sewer, PWSID MT0000317, Montana”, https://aquacensus.com/water-systems/montana/roberts-wua-carbon-co-water-and-sewer-mt0000317 (data as of October 1, 2026).