Tap WaterIndex

← Montana

Tap water quality report

Whitehall Town of

EPA monitoring tested this supplier for 69 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
13
detected
1,500
people served
263
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Local government
Counties served
Jefferson

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.

263
health-based violations
695
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Resolved 2025-07-01 → 2025-09-30
MCL Health-based Resolved 2025-07-01 → 2025-09-30

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
Combined Uranium
46 µg/L 153%
of the EPA limit, at the 95th percentile of samples — 30 µg/L
worst single sample: 55.9 µg/L
45/45 SYR4 2015–2019
Nitrate-Nitrite
1982.5 µg/L 20%
of the EPA limit 10000 µg/L
worst single sample: 1990 µg/L
36/36 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
43 pCi/L 287%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 66 pCi/L
27/40 SYR4 2014–2019
Arsenic
10.98 µg/L 110%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 11.9 µg/L
23/23 SYR4 2014–2019
Copper
773.15 µg/L 59%
of the EPA limit 1300 µg/L
worst single sample: 833 µg/L
20/20 SYR4 2014–2017
Lead
6.96 µg/L 46%
of the EPA limit 15 µg/L
worst single sample: 10.6 µg/L
14/20 SYR4 2014–2017
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2023
Gross Beta Particle Activity
20.2 pCi/L
No EPA limit set
worst single sample: 22 pCi/L
10/10 SYR4 2015–2019
Combined Radium (-226 And -228)
3.08 pCi/L 62%
of the EPA limit 5 pCi/L
worst single sample: 3.1 pCi/L
5/8 SYR4 2014–2018
Fluoride
865.45 µg/L 22%
of the EPA limit 4000 µg/L
worst single sample: 877 µg/L
4/4 SYR4 2014–2018
Barium
47.315 µg/L 2.4%
of the EPA limit 2000 µg/L
worst single sample: 47.4 µg/L
2/4 SYR4 2014–2018
Chromium
7.07 µg/L 7.1%
of the EPA limit 100 µg/L
worst single sample: 7.19 µg/L
2/4 SYR4 2014–2018
Selenium
5.084 µg/L 10%
of the EPA limit 50 µg/L
worst single sample: 5.11 µg/L
2/4 SYR4 2014–2018
56 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JUNG, LINDA
Phone
406-287-3972

Frequently asked questions about Whitehall Town of

Is Whitehall Town of tap water safe to drink?

EPA monitoring detected 13 contaminants in Whitehall 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 Whitehall Town of's water?

EPA monitoring detected Combined Uranium, Nitrate-Nitrite, Gross Alpha, Excl. Radon And U, Arsenic, Copper, and others. The full list with the level and data source for each is above.

How many people does Whitehall Town of serve?

Whitehall Town of reports serving 1,500 people in Montana, per its EPA record.

Has Whitehall Town of had any water quality violations?

The EPA has 695 violations on file for Whitehall Town of, of which 263 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.