Public water system · MT0000299
ActiveNoxon Water District
At a glance
Noxon Water District (PWSID MT0000299) is an active community water system in Sanders County, Montana. It reports serving 330 people through 104 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in July 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
330
Service connections
104
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Noxon Water District compare with other water systems in Sanders County?
By EPA's size categories, Noxon Water District is a very small system (500 people or fewer). Sanders County has 44 active public water systems. Its population served is about 58% above the county average of 209 people per system, and accounts for 3.6% of the 9,212 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 Noxon Water District 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 Noxon Water District?
EPA lists Noxon Water District 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 44 active systems in Sanders County (16%) are also owned by a local government.
Does Noxon Water District have drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in July 2019. The violations listed here began between September 2014 and July 2019. By type: 2 public notice, recordkeeping or other and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (2 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2019-07-01 | 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 |
| 2015-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 4 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.
Noxon Water District: frequently asked questions
Who runs Noxon Water District?
Noxon Water District (PWSID MT0000299) is a community water system owned by a local government. It is regulated by the MT state drinking water program.
How many people does Noxon Water District serve?
Noxon Water District reports serving 330 people through 104 service connections in Sanders County, Montana.
Where does Noxon Water District 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 Noxon Water District have any drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in July 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 Noxon Water District'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 4 violations for this system; 2 are health-based, and the most recent began in July 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Noxon Water District's water quality report?
As a community water system, Noxon Water District 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 Sanders County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Thompson Falls City of | Sanders | 1,950 | Community | Groundwater |
| Plains Town of | Sanders | 1,700 | Community | Groundwater |
| Hot Springs Municipal Water | Sanders | 600 | Community | Groundwater |
| One Stop | Sanders | 500 | Transient non-community | Groundwater |
| Sanders County Harvest Foods | Sanders | 445 | Non-transient non-community | Groundwater |
| Water Service Inc. Trout Creek | Sanders | 350 | 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, “Noxon Water District, PWSID MT0000299, Montana”, https://aquacensus.com/water-systems/montana/noxon-water-district-mt0000299 (data as of October 1, 2026).