Chesterfield Township, MI
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Chesterfield Township serves about 41,650 people through 18,464 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Macomb County, Michigan. EPA system ID: MI0001390; phone on file: 586-949-0400. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Chesterfield Township is 1 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0.7 ppb |
| 2022 | 1 ppb |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2017 | 0.9 ppb |
Against other Michigan systems
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. Chesterfield Township's reported as 0 (not detected) sits at the 36th percentile in Michigan and the 39th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
25 other systems share Macomb County; 10 of them have a higher latest lead result than Chesterfield Township. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Warren, City Of | 134,056 | 2.7 ppb |
| Sterling Heights, City Of | 127,000 | 0 (not detected) |
| Clinton Township | 100,513 | 1.2 ppb |
| Macomb Township | 90,000 | 0 (not detected) |
| Shelby Township | 72,000 | 0 (not detected) |
| St. Clair Shores, City Of | 59,715 | 1.1 ppb |
| Roseville, City Of | 47,299 | 8.68 ppb |
| Eastpointe, City Of | 32,442 | 0 (not detected) |
| Harrison Township | 24,314 | 1 ppb |
| Mount Clemens, City Of | 16,314 | 1.6 ppb |
Next steps for Chesterfield Township, MI
Look up your address in Chesterfield Township's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Chesterfield 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. Small systems behave differently: why small systems go over more often.