Public water system · MT0004719
ActiveNcmrwa Tiber Service Area
At a glance
Ncmrwa Tiber Service Area (PWSID MT0004719) is an active community water system in Liberty County, Montana. It reports serving 200 people through 3 service connections. Its primary water source is purchased 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 July 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
200
Service connections
3
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Ncmrwa Tiber Service Area compare with other water systems in Liberty County?
By EPA's size categories, Ncmrwa Tiber Service Area is a very small system (500 people or fewer). Liberty County has 8 active public water systems, and Ncmrwa Tiber Service Area is the 3rd-largest of them by population served. Its population served is about 12% below the county average of 228 people per system, and accounts for 11% of the 1,827 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 Ncmrwa Tiber Service Area 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 212 Montana systems (8.9%) list purchased surface water as their primary source.
Who owns and regulates Ncmrwa Tiber Service Area?
EPA lists Ncmrwa Tiber Service Area 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 8 active systems in Liberty County (38%) are also owned by a local government.
Does Ncmrwa Tiber Service Area have drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in July 2024. The violations listed here began between January 2020 and July 2024. By type: 12 contaminant level above the legal limit. The contaminant or rule involved most often is Haloacetic acids (HAA5) (11 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 |
|---|---|---|---|---|
| 2024-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2024-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2023-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2023-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2023-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2021-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2021-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2020-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2020-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2020-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2020-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2020-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | 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.
Ncmrwa Tiber Service Area: frequently asked questions
Who runs Ncmrwa Tiber Service Area?
Ncmrwa Tiber Service Area (PWSID MT0004719) is a community water system owned by a local government. It is regulated by the MT state drinking water program.
How many people does Ncmrwa Tiber Service Area serve?
Ncmrwa Tiber Service Area reports serving 200 people through 3 service connections in Liberty County, Montana.
Where does Ncmrwa Tiber Service Area get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Ncmrwa Tiber Service Area 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 July 2024. 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 Ncmrwa Tiber Service Area'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 July 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Ncmrwa Tiber Service Area's water quality report?
As a community water system, Ncmrwa Tiber Service Area 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 Liberty County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Chester Town of | Liberty | 870 | Community | Surface water |
| Sage Creek Co Water District | Liberty | 225 | Community | Groundwater |
| Sage Creek Colony | Liberty | 130 | Community | Groundwater |
| Riverview Colony | Liberty | 130 | Community | Purchased surface water |
| Eagle Creek Colony | Liberty | 125 | Community | Groundwater |
| Hi-Line Colony | Liberty | 92 | 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, “Ncmrwa Tiber Service Area, PWSID MT0004719, Montana”, https://aquacensus.com/water-systems/montana/ncmrwa-tiber-service-area-mt0004719 (data as of October 1, 2026).