Friends of the Rouge
650 Church Street Suite 209, Plymouth, MI 48170
EIN: 38-2672879
734-927-4900

Copyright 2025 Friends of the Rouge.

An illicit discharge is the introduction of polluting materials into a pipe that drains to surface water or the dumping of polluting material that can impact surface water. Examples found in the Rouge River watershed include toilets connected to storm sewers, laundry waste discharging to a drain, swimming pool backwash water discharging to a storm sewer or situations where polluting material can move over land to a storm sewer.

Illegal discharges may also take place, such as the one responsible for the large oil spill on the Rouge and Detroit Rivers in 2002. Careless and intentional acts of illicit and illegal dumping are not only expensive to remedy, but they can also have long term affects on the health of the river.

If you see an illicit or illegal discharge, please report it immediately. If the dumping is going on while you are there, call 911.

For more important numbers to call and other signs of illicit discharge, see SEMCOG’s IDEP Tip Card.


Is This Natural?

Click on each photo to enlarge for more info or download the PDF. If you are not sure if something in the river or water body is natural, please do still call to report it!

Algae

Download Algae PDF

Bacteria

Download Bacteria PDF

Foam

Download Foam PDF

Pollen

Download Pollen PDF

Whiting

Download Whiting PDF

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