Forest Park Water Users Association, MT
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 15 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. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
Who runs the water here
Forest Park Water Users Association serves about 323 people through 134 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Jefferson County, Montana. EPA system ID: MT0000591; phone on file: 406-579-6481. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Forest Park Water Users Association's lead record
That is up 9 ppb from 6 ppb in the period ending 2018. The highest 90th-percentile result EPA holds for Forest Park Water Users Association is 15 ppb across 2 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 15 ppb over 10 |
| 2018 | 6 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. Forest Park Water Users Association's 15 ppb sits at the 99th percentile in Montana and the 99th nationally (higher means more lead).
Nearby utilities
13 other systems share Jefferson County; 0 of them have a higher latest lead result than Forest Park Water Users Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Whitehall Town Of | 1,500 | 3 ppb |
| Boulder City Of | 1,400 | 0 (not detected) |
| Jefferson Hills Wua | 780 | 1 ppb |
| Saddle Mountain Corp Clancy | 350 | 6 ppb |
| Blue Sky Heights Wua Clancy | 250 | 0 (not detected) |
| Basin County Water And Sewer Dist | 200 | 0 (not detected) |
| Hangmans Tree Wua | 158 | 4 ppb |
| Stoney Brook Village Condominium Assoc | 142 | 4 ppb |
| Elkhorn Health And Rehabilitation Llc | 89 | 2 ppb |
| Jefferson Tracts Assoc Inc | 80 | 7 ppb |
Next steps for Clancy, MT
Test your own tap with a certified lab first-draw sample; Clancy, MT may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Forest Park Water Users Association 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. This system is in the band the 2027 10 ppb rule changes.