Manchester, MI
Exceeded the action level in the past
Latest 90th-percentile lead: 4.9 ppb (monitoring period 2023-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Manchester at a glance
Manchester serves about 2,150 people through 778 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 Washtenaw County, Michigan. EPA system ID: MI0004020; phone on file: 734-428-7877. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 6.1 ppb from 11 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Manchester is 31 ppb across 4 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 4.9 ppb |
| 2022 | 11 ppb over 10 |
| 2022 | 15 ppb over 10 |
| 2021 | 31 ppb over 15 |
Where this result ranks
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. Manchester's 4.9 ppb sits at the 87th percentile in Michigan and the 90th nationally (higher means more lead).
Nearby utilities
30 other systems share Washtenaw County; 5 of them have a higher latest lead result than Manchester. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ann Arbor | 123,851 | 2.3 ppb |
| Ypsilanti Community Utility Authority | 53,988 | 4.1 ppb |
| Pittsfield Township | 24,500 | 0 (not detected) |
| Saline | 9,158 | 0 (not detected) |
| Scio Township | 8,500 | 0 (not detected) |
| Milan | 7,363 | 5.1 ppb |
| Superior Township | 6,830 | 0 (not detected) |
| Chelsea | 5,474 | 0 (not detected) |
| Dexter | 4,500 | 0 (not detected) |
| Augusta Township | 3,907 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Manchester, MI 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 Manchester 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. Why an old exceedance still matters: over the limit before, under it now.