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Tap water quality report

Fairfield Town of

EPA monitoring tested this supplier for 104 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

104
contaminants tested
20
detected
718
people served
0
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Local government
Counties served
Teton

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.

0
health-based violations
367
violations on file
0
still open
ViolationTypeStatusPeriod
MON Monitoring Resolved 2020-06-01 → 2020-06-30
MON Monitoring Resolved 2020-06-01 → 2020-06-30
MON Monitoring Resolved 2020-06-01 → 2020-06-30
MON Monitoring Resolved 2020-06-01 → 2020-06-30
MR Monitoring Resolved 2019-01-01 → 2019-03-31
MR Monitoring Resolved 2019-01-01 → 2019-03-31
MR Monitoring Resolved 2019-01-01 → 2019-03-31
MR Monitoring Resolved 2017-04-01 → 2017-06-30
MR Monitoring Resolved 2017-04-01 → 2017-06-30
MR Monitoring Resolved 2017-04-01 → 2017-06-30

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
Nitrate-Nitrite
8670 µg/L 87%
of the EPA limit 10000 µg/L
worst single sample: 10400 µg/L
110/110 SYR4 2012–2019
Copper
401.8 µg/L 31%
of the EPA limit 1300 µg/L
worst single sample: 1670 µg/L
60/60 SYR4 2012–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2017
Lead
6.5 µg/L 43%
of the EPA limit 15 µg/L
worst single sample: 8 µg/L
16/60 SYR4 2012–2017
Bromodichloromethane
2.465 µg/L
No EPA limit set
worst single sample: 2.73 µg/L
11/22 SYR4 2013–2019
Combined Uranium
3 µg/L 10%
of the EPA limit 30 µg/L
 10/10 SYR4 2016–2019
Lithium
24.5 µg/L
No EPA limit set
 10/10 UCMR-5 2025
TTHM
7.1 µg/L 8.9%
of the EPA limit 80 µg/L
worst single sample: 8.1 µg/L
9/19 SYR4 2013–2019
Chloroform
5.15 µg/L
No EPA limit set
worst single sample: 5.5 µg/L
8/22 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
4.28 pCi/L 29%
of the EPA limit 15 pCi/L
worst single sample: 4.7 pCi/L
8/13 SYR4 2013–2019
Combined Radium (-226 And -228)
3.33 pCi/L 67%
of the EPA limit 5 pCi/L
worst single sample: 3.6 pCi/L
7/12 SYR4 2013–2019
Barium
102.75 µg/L 5.1%
of the EPA limit 2000 µg/L
worst single sample: 103 µg/L
6/6 SYR4 2013–2019
Fluoride
375 µg/L 9.4%
of the EPA limit 4000 µg/L
worst single sample: 380 µg/L
6/6 SYR4 2013–2019
Dibromochloromethane
1.756 µg/L
No EPA limit set
worst single sample: 1.77 µg/L
5/22 SYR4 2013–2019
Dichloroacetic Acid
3.38 µg/L
No EPA limit set
worst single sample: 3.7 µg/L
5/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
4.82 µg/L 8%
of the EPA limit 60 µg/L
worst single sample: 5.2 µg/L
5/7 SYR4 2013–2019
Trichloroacetic Acid
1.44 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
5/7 SYR4 2013–2019
Bromoform
2.6475 µg/L
No EPA limit set
worst single sample: 2.75 µg/L
2/22 SYR4 2013–2019
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
 1/11 SYR4 2013–2019
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
 1/6 SYR4 2013–2019
84 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, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
COMER, TAMMY
Phone
406-590-2510

Frequently asked questions about Fairfield Town of

Is Fairfield Town of tap water safe to drink?

EPA monitoring detected 20 contaminants in Fairfield Town 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 Fairfield Town of's water?

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

How many people does Fairfield Town of serve?

Fairfield Town of reports serving 718 people in Montana, per its EPA record.

Has Fairfield Town of had any water quality violations?

The EPA has 367 violations on file for Fairfield Town of, of which 0 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.