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Tap water quality report

Bozeman City of

EPA monitoring tested this supplier for 102 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

102
contaminants tested
14
detected
56,000
people served
4
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Surface water
Ownership
Local government
Counties served
Gallatin

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.

4
health-based violations
14
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2013-05-01 → 2013-05-31
TT Health-based Resolved 2013-05-01 → 2013-05-31
TT Health-based Resolved 2013-05-01 → 2013-05-31
TT Health-based Resolved 2013-05-01 → 2013-05-31
MR Monitoring Resolved 1998-06-01 → 1998-06-30
MR Monitoring Resolved 1998-01-01 → 1998-01-31
MR Monitoring Resolved 1996-03-01 → 1996-03-31
MR Monitoring Resolved 1996-01-01 → 1996-01-31
MR Monitoring Resolved 1996-01-01 → 1996-12-31
MR Monitoring Resolved 1996-01-01 → 1996-12-31

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
Fluoride
1104.5 µg/L 28%
of the EPA limit 4000 µg/L
worst single sample: 1240 µg/L
192/194 SYR4 2012–2019
Chloroform
37 µg/L
No EPA limit set
worst single sample: 48 µg/L
90/90 SYR4 2012–2019
TTHM
39 µg/L 49%
of the EPA limit 80 µg/L
worst single sample: 49 µg/L
90/90 SYR4 2012–2019
Copper
113.85 µg/L 8.8%
of the EPA limit 1300 µg/L
worst single sample: 221 µg/L
88/90 SYR4 2012–2018
Bromodichloromethane
2 µg/L
No EPA limit set
worst single sample: 2.8 µg/L
85/90 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
27.4 µg/L 46%
of the EPA limit 60 µg/L
worst single sample: 38 µg/L
73/80 SYR4 2012–2019
Dichloroacetic Acid
13.45 µg/L
No EPA limit set
worst single sample: 18 µg/L
72/80 SYR4 2012–2019
Trichloroacetic Acid
14.5 µg/L
No EPA limit set
worst single sample: 20 µg/L
71/80 SYR4 2012–2019
Lead
12.35 µg/L 82%
of the EPA limit 15 µg/L
worst single sample: 15 µg/L
32/90 SYR4 2012–2018
Lead
0.0016 mg/L 11%
of the EPA limit 0.0150 mg/L
 24/24 LCR 2025
Nitrate-Nitrite
160 µg/L 1.6%
of the EPA limit 10000 µg/L
 20/32 SYR4 2012–2019
Monochloroacetic Acid
1.116 µg/L
No EPA limit set
worst single sample: 1.2 µg/L
5/80 SYR4 2012–2019
Combined Uranium
0.6850 µg/L 2.3%
of the EPA limit 30 µg/L
worst single sample: 0.7000 µg/L
2/2 SYR4 2018
Gross Alpha, Excl. Radon And U
3.045 pCi/L 20%
of the EPA limit 15 pCi/L
worst single sample: 3.1 pCi/L
2/2 SYR4 2018
88 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, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MILLER, JILL M
Phone
406-994-0503
Email
[email protected]

Frequently asked questions about Bozeman City of

Is Bozeman City of tap water safe to drink?

EPA monitoring detected 14 contaminants in Bozeman 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 Bozeman City of's water?

EPA monitoring detected Fluoride, Chloroform, TTHM, Copper, Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Bozeman City of serve?

Bozeman City of reports serving 56,000 people in Montana, per its EPA record.

Has Bozeman City of had any water quality violations?

The EPA has 14 violations on file for Bozeman City of, of which 4 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.