Washington 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.
Washington Township at a glance
Washington Township serves about 15,828 people through 8,541 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: MI0006905; phone on file: 586-235-5105. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Washington Township's lead record
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Washington Township is 2.51 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 | 2.2 ppb |
| 2022 | 1.3 ppb |
| 2021 | 1.22 ppb |
| 2020 | 0 (not detected) |
| 2019 | 2.51 ppb |
| 2017 | 0 (not detected) |
How Washington 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. Washington Township's reported as 0 (not detected) sits at the 34th percentile in Michigan and the 38th 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 Washington 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 |
| Chesterfield Township | 41,650 | 0 (not detected) |
| Eastpointe, City Of | 32,442 | 0 (not detected) |
| Harrison Township | 24,314 | 1 ppb |
What to do in your house
Look up your address in Washington 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 Washington 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. The lead result guide covers how utilities pick the homes they sample. Small systems behave differently: why small systems go over more often.