Hazel Park, MI
Exceeded the action level in the past
Latest 90th-percentile lead: 7 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.
About Hazel Park
Hazel Park serves about 16,400 people through 7,233 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 Oakland County, Michigan. EPA system ID: MI0003100; phone on file: 248-542-0340. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Hazel Park's lead record
That is down 1.8 ppb from 8.8 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Hazel Park is 18 ppb across 9 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 7 ppb |
| 2024 | 8.8 ppb |
| 2023 | 10 ppb |
| 2022 | 13 ppb over 10 |
| 2021 | 13 ppb over 10 |
| 2020 | 14 ppb over 10 |
| 2020 | 18 ppb over 15 |
| 2019 | 16 ppb over 15 |
| 2017 | 3.91 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. Hazel Park's 7 ppb sits at the 93rd percentile in Michigan and the 95th nationally (higher means more lead).
Nearby utilities
105 other systems share Oakland County; 8 of them have a higher latest lead result than Hazel Park. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Troy | 85,854 | 0 (not detected) |
| Rochester Hills | 74,000 | 1.3 ppb |
| Waterford Township | 73,441 | 1 ppb |
| Southfield | 71,739 | 0 (not detected) |
| Pontiac | 63,776 | 1.6 ppb |
| Royal Oak, City Of | 57,236 | 4 ppb |
| Farmington Hills, City Of | 56,984 | 0 (not detected) |
| Novi, City Of | 56,780 | 0 (not detected) |
| West Bloomfield Township | 49,479 | 0 (not detected) |
| Bloomfield Township | 41,691 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Hazel 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 Hazel 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. The lead result guide covers how utilities pick the homes they sample. More in what a past exceedance means today.