We are the official Milwaukee Riverkeeper, licensed by the Waterkeeper Alliance, a network with over 156 organizations worldwide dedicated to protecting our waterways.

As Milwaukee’s Riverkeeper, we advocate for compliance with environmental laws, respond to citizens complaints, identify problems within our geographic area, and help provide solutions to address these problems. If you witness any kind of river related environmental abuse, tell us about it.

We can’t be everywhere all the time and we need your help in identifying problems. If you see anything out of the ordinary with our rivers and waterways, please contact Cheryl Nenn: or call our office: 414-287-0207

In case of an emergency, such as an oil or sewage spill, please contact the DNR spill hotline: 1-800-943-0003

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