Public water system · MT0004558

Active

Mission Valley United Methodist Church

At a glance

Mission Valley United Methodist Church (PWSID MT0004558) is an active transient non-community water system in Lake County, Montana. It reports serving 70 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 9 violations for this system; none is health-based, and the most recent began in February 2026.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDMT0004558

System typeTransient non-community water system

Activity statusActive

Population served70

Service connections1

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyMT state drinking water program

City servedSt Ignatius

StateMontana

ZIP—

CountyLake County

How does Mission Valley United Methodist Church compare with other water systems in Lake County?

By EPA's size categories, Mission Valley United Methodist Church is a very small system (500 people or fewer). Lake County has 90 active public water systems. Its population served is well below the county average of 220 people per system, and accounts for 0.4% of the 19,829 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 Mission Valley United Methodist Church is about half of 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 Mission Valley United Methodist Church?

EPA lists Mission Valley United Methodist Church 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. 71 of the 90 active systems in Lake County (79%) are also privately owned.

Does Mission Valley United Methodist Church have drinking water violations?

EPA's records list 9 violations for this system; none is health-based, and the most recent began in February 2026. The violations listed here began between January 2007 and February 2026. By type: 9 monitoring and reporting. The contaminant or rule involved most often is E. coli (5 of them). EPA lists 8 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

Began	Violation	Contaminant or rule	Health-based	Status
2026-02-19	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Unaddressed
2025-12-24	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2025-11-13	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2025-08-14	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2023-02-21	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2007-08-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2007-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2007-06-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2007-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitrate-Nitritecode 1038	No	Resolved

All 9 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.

Mission Valley United Methodist Church: frequently asked questions

Who runs Mission Valley United Methodist Church?

Mission Valley United Methodist Church (PWSID MT0004558) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.

How many people does Mission Valley United Methodist Church serve?

Mission Valley United Methodist Church reports serving 70 people through 1 service connection in Lake County, Montana.

Where does Mission Valley United Methodist Church 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 Mission Valley United Methodist Church have any drinking water violations?

EPA's records list 9 violations for this system; none is health-based, and the most recent began in February 2026. 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 Mission Valley United Methodist Church'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 9 violations for this system; none is health-based, and the most recent began in February 2026. For current results, consult EPA ECHO, or the MT state drinking water program.

Where can I find Mission Valley United Methodist Church's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Mission Valley United Methodist Church 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 Lake County

Water system	County	Population served	Type	Source
Polson City of	Lake	5,300	Community	Groundwater
Ronan City of	Lake	2,483	Community	Surface water
Pablo Lake County Water and Sewer Dist	Lake	2,175	Community	Groundwater
St Ignatius Town of	Lake	700	Community	Groundwater
Woods Bay Water and Sewer District	Lake	685	Community	Groundwater
Wilson Foods	Lake	600	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, “Mission Valley United Methodist Church, PWSID MT0004558, Montana”, https://aquacensus.com/water-systems/montana/mission-valley-united-methodist-church-mt0004558 (data as of October 1, 2026).