What do the Combined Sewer Overflow (CSO) signs look like?

There are two different types of CSO signs: one is permanent and the other is temporary.

Permanent CSO Sign:



This is an example of the District's permanent CSO sign which is permanently posted by the actual location of combined sewer overflows.

Wherever you see this sign, or one like it, a combined sewer overflow may discharge into the nearest body of water when it rains.

How can you help?

If you see a CSO discharge during dry weather or someone dumping pollutants into the water, please call 216-432-7333 and provide the CSO Outfall number. The CSO Outfall number will tell us where that particular CSO is located.

Temporary CSO Sign: