Is COLUMBIA FALLS CITY OF required to publish a Consumer Confidence Report?

Yes. COLUMBIA FALLS CITY OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is COLUMBIA FALLS CITY OF’s next Consumer Confidence Report due?

COLUMBIA FALLS CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

COLUMBIA FALLS, MT · Flathead County

COLUMBIA FALLS CITY OF Water System

Consumer Confidence Report status

COLUMBIA FALLS CITY OF must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for COLUMBIA FALLS CITY OF.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Montana’s official records. Always confirm current status with Montana before making decisions based on this information.

System facts

System ID (PWSID): MT0000181
System type: Community Water System
Population served: 4,450
Service connections: 2,186
Ownership: local government
Water source: groundwater (wells)

COLUMBIA FALLS CITY OF serves 4,450 people from groundwater, placing it in the 3,301 to 10,000 people size category.

As of August 1, 2026, its federal record holds 26 entries between 2002 and 2022, all of which EPA lists as closed. Nothing has been added since 2022.

Of the 26, 24 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals and the Total Coliform Rules.

Violation history

Monitoring, Regular
—
Chlordane
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Pentachlorophenol
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Endrin
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
BHC-GAMMA
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Methoxychlor
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Toxaphene
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Dalapon
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
OXAMYL
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Simazine
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Picloram
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Dinoseb
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Carbofuran
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Atrazine
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
LASSO
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Heptachlor
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
Heptachlor epoxide
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
2,4-D
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Regular
—
2,4,5-TP
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2017 – July 31, 2017
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2009 – November 30, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2002 – November 30, 2002
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2022 – September 30, 2022	Monitoring, Regular	Chlordane	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Pentachlorophenol	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Endrin	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	BHC-GAMMA	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Methoxychlor	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Toxaphene	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Dalapon	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	OXAMYL	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Simazine	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Picloram	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Dinoseb	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Carbofuran	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Atrazine	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	LASSO	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Heptachlor	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Heptachlor epoxide	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	2,4-D	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	2,4,5-TP	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
November 1, 2009 – November 30, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 2002 – November 30, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is COLUMBIA FALLS CITY OF required to publish a Consumer Confidence Report?: Yes. COLUMBIA FALLS CITY OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is COLUMBIA FALLS CITY OF’s next Consumer Confidence Report due?: COLUMBIA FALLS CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does COLUMBIA FALLS CITY OF have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for COLUMBIA FALLS CITY OF.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

STAALAND, BARB

406-892-4388

COLUMBIA FALLS, MT 59912