Whitehall Town Of, MT
Lead detected, under the action levels
Latest 90th-percentile lead: 3 ppb (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Whitehall Town Of at a glance
Whitehall Town Of serves about 1,500 people through 558 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Jefferson County, Montana. EPA system ID: MT0000359; phone on file: 406-287-3972. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2023 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Whitehall Town Of is 3 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 3 ppb |
| 2023 | 2 ppb |
| 2020 | 2 ppb |
| 2019 | 2.74 ppb |
| 2017 | 2 ppb |
How Whitehall Town Of compares
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. Whitehall Town Of's 3 ppb sits at the 86th percentile in Montana and the 82nd nationally (higher means more lead).
Neighbouring systems
13 other systems share Jefferson County; 6 of them have a higher latest lead result than Whitehall Town Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Boulder City Of | 1,400 | 0 (not detected) |
| Jefferson Hills Wua | 780 | 1 ppb |
| Saddle Mountain Corp Clancy | 350 | 6 ppb |
| Forest Park Water Users Association | 323 | 15 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 |
What to do in your house
Test your own tap with a certified lab first-draw sample; Whitehall, 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 Whitehall Town Of 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. Systems that went over once often dip back under; here is what that means.