Eureka Town Of, MT
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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. 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.
Who runs the water here
Eureka Town Of serves about 1,995 people through 747 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 surface water, in Lincoln County, Montana. EPA system ID: MT0000210; phone on file: 406-253-3852. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2019 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Eureka Town Of is 1 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 1 ppb |
| 2019 | 1 ppb |
| 2018 | 1 ppb |
| 2018 | 1 ppb |
| 2018 | 0 (not detected) |
| 2016 | 1 ppb |
How Eureka 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. Eureka Town Of's 1 ppb sits at the 60th percentile in Montana and the 54th nationally (higher means more lead).
Other water systems in Lincoln County
17 other systems share Lincoln County; 8 of them have a higher latest lead result than Eureka Town Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Libby City Of | 4,892 | 2 ppb |
| Troy City Of | 2,100 | 2 ppb |
| Indian Springs Ranch Sub | 455 | 0 (not detected) |
| Wilderness Club The | 440 | 0 (not detected) |
| Wilderness Plateau Water And Sewer Dist | 208 | 2 ppb |
| Pinewood Village | 160 | 4 ppb |
| Rexford Town Of | 160 | 0 (not detected) |
| Emkayan Village Co Water And Sewer Dist | 160 | 2 ppb |
| Angel Island Subdivision | 150 | 0 (not detected) |
| Barnaby Lake Hoa | 75 | 1 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Eureka, 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 Eureka 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. Size matters more than most people expect: small vs large water systems.