Detroit's drinking water continues to test safely below state limits for lead.
Why it matters: The tests are required under Michigan's Lead and Copper Rule, revised in 2018 to use sampling methods designed to better capture lead from service lines.
Driving the news: The Detroit Water and Sewerage Department's results announced yesterday show lead levels at 8 parts per billion, well under Michigan's 12 ppb action level.
Samples were collected in summer 2025.
By the numbers: DWSD's previous results in 2024 showed levels of 13 ppb, within compliance but above 2025's updated 12ppb threshold, Planet Detroit reported.
Results showed 12 ppb in 2021-23 and 9 ppb in 2020, per DWSD.
The city has replaced more than 15,800 lead service lines since 2018.
What they're saying: Water leaving treatment plants is lead-free, and there are no confirmed cases of drinking water being the main source of elevated blood lead levels in Detroit children, officials say.
Take action: Run your tap before using water that's been sitting — 30 seconds to 2 minutes (or 5 minutes if you have a lead service line), the city recommends.
Use cold water for drinking and cooking, and consider a certified filter, especially in older homes.
