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Public water system · MT0003839

Active

Caseys Corner Store No 6

At a glance

Caseys Corner Store No 6 (PWSID MT0003839) is an active transient non-community water system in Gallatin County, Montana. It reports serving 510 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2025.

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

Population served

510

Service connections

3

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDMT0003839
System typeTransient non-community water system
Activity statusActive
Population served510
Service connections3
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyMT state drinking water program
City servedBig Sky
StateMontana
ZIP—
CountyGallatin County

How does Caseys Corner Store No 6 compare with other water systems in Gallatin County?

By EPA's size categories, Caseys Corner Store No 6 is a small system (501 to 3,300 people). Gallatin County has 207 active public water systems. Its population served is about 28% below the county average of 713 people per system, and accounts for 0.3% of the 147,534 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 Caseys Corner Store No 6 is about 3.5 times 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 Caseys Corner Store No 6?

EPA lists Caseys Corner Store No 6 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. 180 of the 207 active systems in Gallatin County (87%) are also privately owned.

Does Caseys Corner Store No 6 have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2025. The violations listed here began between January 2006 and December 2025. By type: 8 monitoring and reporting and 4 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 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.

BeganViolationContaminant or ruleHealth-basedStatus
2025-12-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2023-03-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2022-08-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2022-06-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2022-01-01Monitoring and reportingMonitoring, Regular · code 03Nitrate-Nitritecode 1038NoResolved
2018-01-01Monitoring and reportingMonitoring, Regular · code 03Nitrate-Nitritecode 1038NoResolved
2012-08-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2012-04-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2006-12-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2006-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2006-07-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2006-01-01Monitoring and reportingMonitoring, Regular · code 03Nitrate-Nitritecode 1038NoResolved

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.

Caseys Corner Store No 6: frequently asked questions

Who runs Caseys Corner Store No 6?

Caseys Corner Store No 6 (PWSID MT0003839) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.

How many people does Caseys Corner Store No 6 serve?

Caseys Corner Store No 6 reports serving 510 people through 3 service connections in Gallatin County, Montana.

Where does Caseys Corner Store No 6 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 Caseys Corner Store No 6 have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2025. 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 Caseys Corner Store No 6'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, none is health-based, and the most recent began in December 2025. For current results, consult EPA ECHO, or the MT state drinking water program.

Where can I find Caseys Corner Store No 6's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Caseys Corner Store No 6 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 Gallatin County

Water systemCountyPopulation servedTypeSource
Bozeman City ofGallatin56,000CommunitySurface water
Montana State University BozemanGallatin19,200Non-transient non-communityPurchased surface water
Belgrade City ofGallatin10,460CommunityGroundwater
West Yellowstone Town ofGallatin9,899CommunityGroundwater
North Star Zoot WaterGallatin4,323CommunityGroundwater
River Rock County Water and Sewer DistGallatin4,200CommunityGroundwater

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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, “Caseys Corner Store No 6, PWSID MT0003839, Montana”, https://aquacensus.com/water-systems/montana/caseys-corner-store-no-6-mt0003839 (data as of October 1, 2026).