St Labre Indian School, MT
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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. 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.
St Labre Indian School at a glance
St Labre Indian School serves about 650 people through 98 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Rosebud County, Montana. EPA system ID: MT0000018; phone on file: 406-784-4559. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2018 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for St Labre Indian School is 10 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2018 | 0 (not detected) |
| 2017 | 2 ppb |
| 2016 | 3 ppb |
| 2016 | 10 ppb |
Against other Montana systems
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. St Labre Indian School's 1 ppb sits at the 59th percentile in Montana and the 53rd nationally (higher means more lead).
Nearby utilities
3 other systems share Rosebud County; 2 of them have a higher latest lead result than St Labre Indian School. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Colstrip City Of | 2,350 | 1 ppb |
| Forsyth City Of | 2,260 | 2 ppb |
| Ashland Water And Sewer District | 400 | 8 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Ashland, 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 St Labre Indian School 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Size matters more than most people expect: small vs large water systems.