Grosse Pointe Woods, MI
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 10.8 ppb (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
About Grosse Pointe Woods
Grosse Pointe Woods serves about 16,135 people through 6,700 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 Wayne County, Michigan. EPA system ID: MI0002920; phone on file: 313-343-2460. They can tell you what your service line is made of and whether they pay to replace it.
Grosse Pointe Woods's lead record
That is down 2.5 ppb from 13.3 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Grosse Pointe Woods is 13.3 ppb across 9 monitoring periods, none of them over 15 ppb (5 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 10.8 ppb over 10 |
| 2025 | 13.3 ppb over 10 |
| 2024 | 9.8 ppb |
| 2023 | 11.2 ppb over 10 |
| 2022 | 10.2 ppb over 10 |
| 2021 | 9.45 ppb |
| 2020 | 10.15 ppb over 10 |
| 2019 | 4.7 ppb |
| 2017 | 1.03 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. Grosse Pointe Woods's 10.8 ppb sits at the 96th percentile in Michigan and the 98th nationally (higher means more lead).
Neighbouring systems
43 other systems share Wayne County; 2 of them have a higher latest lead result than Grosse Pointe Woods. 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 Grosse Pointe Woods, MI
Test your own tap with a certified lab first-draw sample; Grosse Pointe Woods, 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 Grosse Pointe Woods 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. This system is in the band the 2027 10 ppb rule changes.