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Tap water quality report

Columbia Falls City of

EPA monitoring tested this supplier for 100 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

100
contaminants tested
9
detected
4,450
people served
19
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Local government
Counties served
Flathead

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

19
health-based violations
96
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2009-11-01 → 2009-11-30
MCL Health-based Resolved 2009-11-01 → 2009-11-30
MCL Health-based Resolved 2009-11-01 → 2009-11-30
MCL Health-based Resolved 2009-11-01 → 2009-11-30
MCL Health-based Resolved 2009-11-01 → 2009-11-30
MCL Health-based Resolved 2005-06-01 → 2005-06-30
MCL Health-based Resolved 2005-06-01 → 2005-06-30
MCL Health-based Resolved 2005-06-01 → 2005-06-30
MCL Health-based Resolved 2005-06-01 → 2005-06-30
MCL Health-based Resolved 2005-06-01 → 2005-06-30

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
193 µg/L 15%
of the EPA limit 1300 µg/L
worst single sample: 250 µg/L
59/62 SYR4 2012–2018
Lead
4.8 µg/L 32%
of the EPA limit 15 µg/L
worst single sample: 10 µg/L
33/62 SYR4 2012–2018
Nitrate-Nitrite
715 µg/L 7.2%
of the EPA limit 10000 µg/L
worst single sample: 730 µg/L
16/16 SYR4 2012–2019
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2024
Barium
210 µg/L 11%
of the EPA limit 2000 µg/L
 6/6 SYR4 2012–2017
Nitrate
690 µg/L 6.9%
of the EPA limit 10000 µg/L
 6/6 SYR4 2012–2014
Fluoride
74 µg/L 1.9%
of the EPA limit 4000 µg/L
worst single sample: 80 µg/L
5/5 SYR4 2012–2017
Combined Radium (-226 And -228)
1.2 pCi/L 24%
of the EPA limit 5 pCi/L
 1/2 SYR4 2018
Di(2-ethylhexyl) Phthalate
3.5 µg/L 58%
of the EPA limit 6 µg/L
 1/15 SYR4 2012–2019
91 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDibromochloromethaneDinosebEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
STAALAND, BARB
Phone
406-892-4388
Email
[email protected]

Frequently asked questions about Columbia Falls City of

Is Columbia Falls City of tap water safe to drink?

EPA monitoring detected 9 contaminants in Columbia Falls City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Columbia Falls City of's water?

EPA monitoring detected Copper, Lead, Nitrate-Nitrite, Lead, Barium, and others. The full list with the level and data source for each is above.

How many people does Columbia Falls City of serve?

Columbia Falls City of reports serving 4,450 people in Montana, per its EPA record.

Has Columbia Falls City of had any water quality violations?

The EPA has 96 violations on file for Columbia Falls City of, of which 19 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.