Fallon County Water District, MT
Above the federal action level
Latest 90th-percentile lead: 24 ppb (monitoring period 2022-2024). 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.
Who runs the water here
Fallon County Water District serves about 85 people through 35 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Fallon County, Montana. EPA system ID: MT0003035; phone on file: 406-778-2666. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Fallon County Water District's lead record
That is up 23 ppb from 1 ppb in the period ending 2018. The highest 90th-percentile result EPA holds for Fallon County Water District is 24 ppb across 2 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 24 ppb over 15 |
| 2018 | 1 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. Fallon County Water District's 24 ppb sits at the 100th percentile in Montana and the 99th nationally (higher means more lead).
Neighbouring systems
3 other systems share Fallon County; 0 of them have a higher latest lead result than Fallon County Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Baker City Of | 1,858 | 3 ppb |
| Plevna Town Of | 130 | 1 ppb |
| North Baker Water And Or Sewer Dist | 112 | 1 ppb |
Your move
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 Fallon County Water District 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.