Highland Park, MI
Exceeded the action level in the past
Latest 90th-percentile lead: 2 ppb (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 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.
Who runs the water here
Highland Park serves about 8,443 people through 3,514 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Wayne County, Michigan. EPA system ID: MI0003140; phone on file: 313-252-0050. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Highland Park's lead record
That is down 2 ppb from 4 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Highland Park is 57 ppb across 9 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2024 | 4 ppb |
| 2023 | 6 ppb |
| 2022 | 8 ppb |
| 2021 | 9 ppb |
| 2020 | 8 ppb |
| 2020 | 10 ppb |
| 2019 | 57 ppb over 15 |
| 2016 | 4.7 ppb |
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. Highland Park's 2 ppb sits at the 68th percentile in Michigan and the 73rd nationally (higher means more lead).
Neighbouring systems
43 other systems share Wayne County; 23 of them have a higher latest lead result than Highland Park. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Detroit City Of | 633,218 | 7.5 ppb |
| Dearborn | 109,976 | 6 ppb |
| Canton Township | 99,627 | 0 (not detected) |
| Livonia | 96,942 | 0 (not detected) |
| Westland | 85,420 | 0 (not detected) |
| Taylor | 63,409 | 10.7 ppb |
| Dearborn Heights | 57,774 | 0 (not detected) |
| Redford Township | 49,504 | 8.2 ppb |
| Lincoln Park | 38,144 | 3.1 ppb |
| Brownstown Township | 33,194 | 0 (not detected) |
Next steps for Highland Park, MI
Test your own tap with a certified lab first-draw sample; Highland Park, 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 Highland Park 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.