Flint's registry for people exposed to lead-contaminated water is officially up and running.
The idea is to connect people with health care and city services to track the effects of lead poisoning.
Flint's mayor says all personal information will be kept confidential.
Activists think the registry will help bring something good out of the disaster.
"I absolutely hate what was done to us in this community but I love what we've done with it," says Pastor Rigel Dawson.
600 people have already signed up.
Health experts say around 150,000 people may have been exposed to the contaminated water.