Saint Clair, MN
Lead detected, under the action levels
Latest 90th-percentile lead: 6 ppb (monitoring period 2024-2026). 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.
About Saint Clair
Saint Clair serves about 846 people through 288 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 Blue Earth County, Minnesota. EPA system ID: MN1070017; phone on file: 5072453494. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is up 5 ppb from 1 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Saint Clair is 6 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 6 ppb |
| 2023 | 1 ppb |
How Saint Clair compares
Of the 966 Minnesota systems with a lead result, the median latest reading is 0 ppb; 7 are over 15 ppb right now and 48 have gone over at some point. Saint Clair's 6 ppb sits at the 93rd percentile in Minnesota and the 93rd nationally (higher means more lead).
Neighbouring systems
16 other systems share Blue Earth County; 0 of them have a higher latest lead result than Saint Clair. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mankato | 42,803 | 2 ppb |
| Eagle Lake | 3,268 | 1 ppb |
| Lake Crystal | 2,554 | 2 ppb |
| Mapleton | 1,756 | 2 ppb |
| Madison Lake | 1,017 | 0 (not detected) |
| Good Thunder | 583 | 2 ppb |
| Amboy | 535 | 6 ppb |
| South Bend Township | 325 | 1 ppb |
| Vernon Center | 323 | 1 ppb |
| Skyline | 289 | 0 (not detected) |
Next steps for St. Clair, MN
Test your own tap with a certified lab first-draw sample; St. Clair, MN 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 Saint Clair 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.