Public water system record

City of Polson

Serves Polson, Lake County, MT · 5,300 people served

Federal records show no health-based violations and 2 monitoring/reporting issues for City of Polson in the last ten years.

  • MT0000308
  • POLSON
  • MT
  • 5,300 served

System profile

Source water Groundwater
ZIP 59860
EPA system ID MT0000308

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • City of Polson draws water from 7 wells.
  • Record on file since 1993, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 1,876 unknown out of 2,374 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Consumer Confidence Rule
OTHER
Oct 1, 2025 Resolved
Nitrate-Nitrite
Monitoring and reporting
Jan 1, 2024 Resolved

Full record since 1993

EPA's records for City of Polson go back to 1993. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 90 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 22
2000s 0 68
2020s 0 2

Most recent health-based violation before October 19, 2016: Total Coliform, began April 1995, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Apr 1, 1995 Resolved

Where the water comes from

City of Polson draws water from 7 wells. 2 smaller public systems such as schools, businesses or campgrounds buy water from City of Polson.

Annual water quality report

City of Polson must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Montana.