Public water system · MT0000347
ActiveWater Service Inc. Trout Creek
At a glance
Water Service Inc. Trout Creek (PWSID MT0000347) is an active community water system in Sanders County, Montana. It reports serving 350 people through 103 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in January 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
350
Service connections
103
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Water Service Inc. Trout Creek compare with other water systems in Sanders County?
By EPA's size categories, Water Service Inc. Trout Creek is a very small system (500 people or fewer). Sanders County has 44 active public water systems, and Water Service Inc. Trout Creek is the 6th-largest of them by population served. Its population served is about 67% above the county average of 209 people per system, and accounts for 3.8% 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 Water Service Inc. Trout Creek 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 Water Service Inc. Trout Creek?
EPA lists Water Service Inc. Trout Creek as privately owned. 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. 35 of the 44 active systems in Sanders County (80%) are also privately owned.
Does Water Service Inc. Trout Creek have drinking water violations?
EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in January 2020. The violations listed here began between April 1997 and January 2020. By type: 5 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 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 |
|---|---|---|---|---|
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Asbestoscode 1094 | No | Resolved |
| 2013-09-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2012-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Asbestoscode 1094 | No | Resolved |
| 2010-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1997-04-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | 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.
Water Service Inc. Trout Creek: frequently asked questions
Who runs Water Service Inc. Trout Creek?
Water Service Inc. Trout Creek (PWSID MT0000347) is a community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Water Service Inc. Trout Creek serve?
Water Service Inc. Trout Creek reports serving 350 people through 103 service connections in Sanders County, Montana.
Where does Water Service Inc. Trout Creek 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 Water Service Inc. Trout Creek have any drinking water violations?
EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in January 2020. 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 Water Service Inc. Trout Creek'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; 2 are health-based, and the most recent began in January 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Water Service Inc. Trout Creek's water quality report?
As a community water system, Water Service Inc. Trout Creek 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 |
| Noxon Water District | Sanders | 330 | 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, “Water Service Inc. Trout Creek, PWSID MT0000347, Montana”, https://aquacensus.com/water-systems/montana/water-service-inc-trout-creek-mt0000347 (data as of October 1, 2026).