Montana City Mercantile Hardware Cafe

PWSID: MT0004359

1 active health-based violation
This system currently has unresolved violations for: 8000. These violations mean contaminant levels exceeded EPA limits or required treatment was not performed.

This system has more violations on record than 85% of water systems in Montana.

Violation trend: 5.6 per year over the last 5 years.

System Details

Population Served56
Service Connections1
Water SourceGroundwater
System TypeTransient Non-Community
OwnerPrivate
StatusActive
CityClancy
EPA ZIP on File59634

Areas Served

  • Clancy, Jefferson County

2 Active Violations

ContaminantViolationDateHealth-BasedStatus
8000TT2025-10-07YesOpen
3014MR2025-08-21 MajorOpen

Violation History (28 total)

ContaminantViolationDateHealth-BasedStatus
8000MON2025-09-01 MajorReturned to Compliance
8000MON2025-04-01 MajorAcknowledged
8000MON2025-04-01 MajorReturned to Compliance
8000MON2025-01-01 MajorAcknowledged
8000MON2025-01-01 MajorAcknowledged
8000MON2025-01-01 MajorReturned to Compliance
8000MON2024-09-01 MajorReturned to Compliance
8000MON2024-09-01 MajorReturned to Compliance
8000MON2024-06-01 MajorReturned to Compliance
8000MON2024-06-01 MajorAcknowledged
8000MON2024-06-01 MajorReturned to Compliance
8000MON2023-12-01 MajorReturned to Compliance
8000MON2023-12-01 MajorReturned to Compliance
8000MON2023-09-01 MajorReturned to Compliance
8000MON2023-09-01 MajorReturned to Compliance
8000MON2023-08-01 MajorReturned to Compliance
8000MON2023-08-01 MajorReturned to Compliance
8000MON2023-07-01 MajorAcknowledged
8000MON2023-07-01 MajorReturned to Compliance
8000MON2023-07-01 MajorReturned to Compliance
8000MON2022-04-01 MajorAcknowledged
8000MON2022-04-01 MajorReturned to Compliance
8000MON2022-04-01 MajorAcknowledged
8000MON2022-01-01 MajorAcknowledged
8000MON2022-01-01 MajorReturned to Compliance
8000MON2021-07-01 MajorReturned to Compliance

Understanding This Water System's Record

Montana City Mercantile Hardware Cafe is a transient non-community water system that draws from groundwater sources and serves a population of 56 in Clancy, Montana. This page shows its complete compliance history as reported to the EPA's Safe Drinking Water Information System (SDWIS), the federal database that tracks every public water system in the United States.

What Do These Violations Mean?

Health-based violations mean the system exceeded an EPA maximum contaminant level (MCL) or failed to provide required treatment. These indicate potential health risks from contaminants like lead, arsenic, bacteria, nitrates, or disinfection byproducts. Non-health-based violations involve monitoring, reporting, or procedural requirements — the system missed a testing deadline or failed to notify customers, but contaminant levels were not necessarily unsafe.

What Should You Do?

Your water utility is required to publish an annual Consumer Confidence Report (CCR) that details test results and any violations. If your system has active health-based violations, consider a certified water filter rated for the specific contaminants involved. The contaminant guides on this site explain health risks and filter options for common pollutants. For the most current results, contact your water utility directly — EPA data can lag weeks or months behind real-time testing.