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Tap water quality report

Bigfork County Water and Sewer

EPA monitoring tested this supplier for 98 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

98
contaminants tested
8
detected
6,100
people served
25
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.

25
health-based violations
43
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2015-03-01 → 2015-03-31
MCL Health-based Resolved 2015-03-01 → 2015-03-31
MCL Health-based Resolved 2015-03-01 → 2015-03-31
MCL Health-based Resolved 2015-03-01 → 2015-03-31
MCL Health-based Resolved 2015-03-01 → 2015-03-31
MCL Health-based Resolved 2015-02-01 → 2015-02-28
MCL Health-based Resolved 2015-02-01 → 2015-02-28
MCL Health-based Resolved 2015-02-01 → 2015-02-28
MCL Health-based Resolved 2015-02-01 → 2015-02-28
MCL Health-based Resolved 2015-02-01 → 2015-02-28

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
100.2 µg/L 7.7%
of the EPA limit 1300 µg/L
worst single sample: 104 µg/L
20/20 SYR4 2014–2017
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2023
Nitrate-Nitrite
220 µg/L 2.2%
of the EPA limit 10000 µg/L
 8/8 SYR4 2012–2019
Lead
8.3 µg/L 55%
of the EPA limit 15 µg/L
worst single sample: 11 µg/L
7/20 SYR4 2014–2017
Nitrate
170 µg/L 1.7%
of the EPA limit 10000 µg/L
 2/2 SYR4 2012
Barium
320 µg/L 16%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Fluoride
70 µg/L 1.8%
of the EPA limit 4000 µg/L
 1/1 SYR4 2012
Lithium
12.1 µg/L
No EPA limit set
 1/2 UCMR-5 2025
90 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-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HANTZ, TYLER J
Phone
406-837-4566
Email
[email protected]

Frequently asked questions about Bigfork County Water and Sewer

Is Bigfork County Water and Sewer tap water safe to drink?

EPA monitoring detected 8 contaminants in Bigfork County Water and Sewer'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 Bigfork County Water and Sewer's water?

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

How many people does Bigfork County Water and Sewer serve?

Bigfork County Water and Sewer reports serving 6,100 people in Montana, per its EPA record.

Has Bigfork County Water and Sewer had any water quality violations?

The EPA has 43 violations on file for Bigfork County Water and Sewer, of which 25 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.