COLUMBIA FALLS, MT · Flathead County
COLUMBIA FALLS CITY OF Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
Violation history
Monitoring, Regular
—Chlordane
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—2,4,5-TP
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Benzo(a)pyrene
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Pentachlorophenol
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Endrin
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—BHC-GAMMA
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Methoxychlor
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Toxaphene
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Dalapon
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—OXAMYL
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Simazine
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Picloram
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Dinoseb
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Carbofuran
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Atrazine
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—LASSO
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Heptachlor
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—Heptachlor epoxide
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Regular
—2,4-D
July 1, 2022 – September 30, 2022
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
July 1, 2017 – July 31, 2017
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
November 1, 2009 – November 30, 2009
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
November 1, 2002 – November 30, 2002
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 1994 – September 30, 1994
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 | 2,4,5-TP | — | 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, 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 |
| September 1, 1994 – September 30, 1994 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- October 22, 1991State Public Notification received1 linked violation
Contact
STAALAND, BARB
406-892-4388
COLUMBIA FALLS, MT 59912