Leoni Township, MI
Above the federal action level
Latest 90th-percentile lead: 19 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. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Who runs the water here
Leoni Township serves about 1,893 people through 757 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 Jackson County, Michigan. EPA system ID: MI0003837; phone on file: 517-764-4694. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
The highest 90th-percentile result EPA holds for Leoni Township is 19 ppb across 1 monitoring period, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 19 ppb over 15 |
How Leoni Township compares
Of the 1,227 Michigan systems with a lead result, the median latest reading is 1 ppb; 31 are over 15 ppb right now and 109 have gone over at some point. Leoni Township's 19 ppb sits at the 98th percentile in Michigan and the 99th nationally (higher means more lead).
Neighbouring systems
21 other systems share Jackson County; 0 of them have a higher latest lead result than Leoni Township. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Jackson | 33,165 | 0 (not detected) |
| Summit Township | 25,355 | 0 (not detected) |
| Blackman Township | 21,222 | 0 (not detected) |
| Grass Lake | 1,986 | 12 ppb |
| Brooklyn | 1,313 | 3.6 ppb |
| Concord | 1,050 | 2 ppb |
| Sherman Oaks | 915 | 0 (not detected) |
| Springport | 800 | 0 (not detected) |
| Parma, Village Of | 768 | 0 (not detected) |
| Napoleon Township | 601 | - |
Next steps for Michigan Center, MI
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Leoni Township 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.