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Public water system · MT0042404

Active

Finley Point Mt State Park

At a glance

Finley Point Mt State Park (PWSID MT0042404) is an active transient non-community water system in Lake County, Montana. It reports serving 120 people through 11 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in May 2018.

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

Population served

120

Service connections

11

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDMT0042404
System typeTransient non-community water system
Activity statusActive
Population served120
Service connections11
Primary water sourceGroundwater
Owner typeState government
Primacy agencyMT state drinking water program
City servedPolson
StateMontana
ZIP—
CountyLake County

How does Finley Point Mt State Park compare with other water systems in Lake County?

By EPA's size categories, Finley Point Mt State Park is a very small system (500 people or fewer). Lake County has 90 active public water systems. Its population served is about half of the county average of 220 people per system, and accounts for 0.6% 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 Finley Point Mt State Park is about 17% below 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 Finley Point Mt State Park?

EPA lists Finley Point Mt State Park as owned by a state 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. 8 of the 90 active systems in Lake County (8.9%) are also owned by a state government.

Does Finley Point Mt State Park have drinking water violations?

EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in May 2018. The violations listed here began between May 1994 and May 2018. By type: 3 monitoring and reporting, 1 required treatment not met and 1 monitoring. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 5 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.

BeganViolationContaminant or ruleHealth-basedStatus
2018-05-02Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2DRevised Total Coliform Rulecode 8000YesResolved
2017-07-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2017-01-01Monitoring and reportingMonitoring, Regular · code 03Nitrate-Nitritecode 1038NoResolved
1996-05-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
1994-05-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved

All 5 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.

Finley Point Mt State Park: frequently asked questions

Who runs Finley Point Mt State Park?

Finley Point Mt State Park (PWSID MT0042404) is a transient non-community water system owned by a state government. It is regulated by the MT state drinking water program.

How many people does Finley Point Mt State Park serve?

Finley Point Mt State Park reports serving 120 people through 11 service connections in Lake County, Montana.

Where does Finley Point Mt State Park 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 Finley Point Mt State Park have any drinking water violations?

EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in May 2018. 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 Finley Point Mt State Park'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 5 violations for this system; 1 is health-based, and the most recent began in May 2018. For current results, consult EPA ECHO, or the MT state drinking water program.

Where can I find Finley Point Mt State Park's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Finley Point Mt State Park 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 systemCountyPopulation servedTypeSource
Polson City ofLake5,300CommunityGroundwater
Ronan City ofLake2,483CommunitySurface water
Pablo Lake County Water and Sewer DistLake2,175CommunityGroundwater
St Ignatius Town ofLake700CommunityGroundwater
Woods Bay Water and Sewer DistrictLake685CommunityGroundwater
Wilson FoodsLake600Transient non-communityGroundwater

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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, “Finley Point Mt State Park, PWSID MT0042404, Montana”, https://aquacensus.com/water-systems/montana/finley-point-mt-state-park-mt0042404 (data as of October 1, 2026).