Public water system record

City of Columbia Falls

Serves Columbia Falls, Flathead County, MT · 4,450 people served

Federal records show no health-based violations and 24 monitoring/reporting issues for City of Columbia Falls in the last ten years.

  • MT0000181
  • COLUMBIA FALLS
  • MT
  • 4,450 served

System profile

Source water Groundwater
ZIP 59912
EPA system ID MT0000181

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
24

Key facts

  • City of Columbia Falls draws water from 3 wells.
  • Record on file since 1992, with 5 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 7 unknown out of 2,087 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
Chlordane
Monitoring and reporting
Jul 1, 2022 Resolved
Pentachlorophenol
Monitoring and reporting
Jul 1, 2022 Resolved
Benzo(a)pyrene
Monitoring and reporting
Jul 1, 2022 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Jul 1, 2022 Resolved
2,4,5-TP
Monitoring and reporting
Jul 1, 2022 Resolved
2,4-D
Monitoring and reporting
Jul 1, 2022 Resolved
Heptachlor epoxide
Monitoring and reporting
Jul 1, 2022 Resolved
Heptachlor
Monitoring and reporting
Jul 1, 2022 Resolved
LASSO
Monitoring and reporting
Jul 1, 2022 Resolved
Atrazine
Monitoring and reporting
Jul 1, 2022 Resolved
Carbofuran
Monitoring and reporting
Jul 1, 2022 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Jul 1, 2022 Resolved
Dinoseb
Monitoring and reporting
Jul 1, 2022 Resolved
Picloram
Monitoring and reporting
Jul 1, 2022 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Jul 1, 2022 Resolved
Simazine
Monitoring and reporting
Jul 1, 2022 Resolved
OXAMYL
Monitoring and reporting
Jul 1, 2022 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Jul 1, 2022 Resolved
Dalapon
Monitoring and reporting
Jul 1, 2022 Resolved
Toxaphene
Monitoring and reporting
Jul 1, 2022 Resolved
Methoxychlor
Monitoring and reporting
Jul 1, 2022 Resolved
BHC-GAMMA
Monitoring and reporting
Jul 1, 2022 Resolved
Endrin
Monitoring and reporting
Jul 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2017 Resolved

Full record since 1992

EPA's records for City of Columbia Falls go back to 1992. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 2 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 2 1
2000s 3 1
October 19, 2016 to 2019 0 1
2020s 0 23

Most recent health-based violation before October 19, 2016: Total Coliform, began November 2009, Resolved.

Show all 5 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Nov 1, 2009 Resolved
Total Coliform
Contaminant limit exceeded
Jun 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
Nov 1, 2002 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 1994 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jan 1, 1992 Resolved

Where the water comes from

City of Columbia Falls draws water from 3 wells. 1 other community water system and 2 smaller public systems such as schools, businesses or campgrounds buy water from City of Columbia Falls. 1 other public water system has a seasonal connection to City of Columbia Falls.

Community systems that buy water from it

Annual water quality report

City of Columbia Falls 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.