Alpine Village Wua, MT
Above the federal action level
Latest 90th-percentile lead: 66 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Alpine Village Wua at a glance
Alpine Village Wua serves about 125 people through 49 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Flathead County, Montana. EPA system ID: MT0003229; phone on file: 406-871-3368. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is up 64 ppb from 2 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Alpine Village Wua is 66 ppb across 8 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 66 ppb over 15 |
| 2025 | 2 ppb |
| 2024 | 9 ppb |
| 2022 | 8 ppb |
| 2021 | 8 ppb |
| 2019 | 3 ppb |
| 2018 | 3 ppb |
| 2016 | 3 ppb |
Where this result ranks
Of the 753 Montana systems with a lead result, the median latest reading is 1 ppb; 5 are over 15 ppb right now and 28 have gone over at some point. Alpine Village Wua's 66 ppb sits at the 100th percentile in Montana and the 100th nationally (higher means more lead).
Nearby utilities
135 other systems share Flathead County; 0 of them have a higher latest lead result than Alpine Village Wua. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Kalispell Public Works | 25,000 | 2 ppb |
| Whitefish City Of | 10,418 | 2 ppb |
| Flathead County Water And Sewer | 9,520 | 1 ppb |
| Bigfork County Water And Sewer | 6,100 | 2 ppb |
| Columbia Falls City Of | 4,450 | 4 ppb |
| Big Mountain Water Company | 2,435 | 7 ppb |
| Lakeside Water System | 1,225 | 3 ppb |
| Hungry Horse Co Water And Sewer District | 1,135 | 0 (not detected) |
| Meadow Lake Co Water And Sewer District | 950 | 0 (not detected) |
| Somers Co Water And Sewer Dist | 765 | 2 ppb |
What to do in your house
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Alpine Village Wua whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.