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Tap water quality report

Alpine Pacific Utilities

EPA monitoring tested this supplier for 68 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
10
detected
270
people served
0
health-based violations
Montana rankingsLead in MontanaPFAS in Montana
Water source
Ground water
Ownership
Private
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.

0
health-based violations
104
violations on file
2
still open
ViolationTypeStatusPeriod
MR Monitoring Unaddressed 2025-10-01
MR Monitoring Unaddressed 2025-10-01
Other Monitoring Resolved 2022-07-01
Other Monitoring Resolved 2022-07-01
MON Monitoring Resolved 2021-03-01 → 2021-03-31
MON Monitoring Resolved 2021-03-01 → 2021-03-31
MON Monitoring Resolved 2021-03-01 → 2021-03-31
Other Monitoring Resolved 2017-10-01
Other Monitoring Resolved 2017-10-01
Other Monitoring Resolved 2017-07-01

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
210 µg/L 16%
of the EPA limit 1300 µg/L
 15/15 SYR4 2015–2019
Nitrate-Nitrite
200 µg/L 2%
of the EPA limit 10000 µg/L
 5/5 SYR4 2015–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 4/4 LCR 2022
Barium
250 µg/L 13%
of the EPA limit 2000 µg/L
 2/2 SYR4 2015–2019
Fluoride
70 µg/L 1.8%
of the EPA limit 4000 µg/L
 2/2 SYR4 2015–2019
Gross Alpha, Excl. Radon And U
2.6 pCi/L 17%
of the EPA limit 15 pCi/L
 2/2 SYR4 2015
Nitrate
80 µg/L 0.8%
of the EPA limit 10000 µg/L
 2/2 SYR4 2019
Combined Radium (-226 And -228)
1.6 pCi/L 32%
of the EPA limit 5 pCi/L
 1/2 SYR4 2015
Combined Uranium
3 µg/L 10%
of the EPA limit 30 µg/L
 1/2 SYR4 2015
Lead
3 µg/L 20%
of the EPA limit 15 µg/L
 1/15 SYR4 2015–2019
58 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ALPINE PACIFIC UTILITIES
Phone
406-393-2127

Frequently asked questions about Alpine Pacific Utilities

Is Alpine Pacific Utilities tap water safe to drink?

EPA monitoring detected 10 contaminants in Alpine Pacific Utilities'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 Alpine Pacific Utilities's water?

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

How many people does Alpine Pacific Utilities serve?

Alpine Pacific Utilities reports serving 270 people in Montana, per its EPA record.

Has Alpine Pacific Utilities had any water quality violations?

The EPA has 104 violations on file for Alpine Pacific Utilities, of which 0 are health-based (a contaminant limit or required treatment was breached) and 2 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.