A copy of this door hanger was circulated among Village employees and Board members, sent to businesses in the Village, and included in a Library of other stormwater related materials in the summer of 2007.

Copies of this leaflet were circulated among Village employees and Board members, sent to businesses in the Village, and included in a Library of other stormwater related materials in the summer of 2007.

There are two types of sewers, sanitary sewers and storm sewers. Sanitary sewers transport household wastes (such as toilet and shower waste) and certain industrial wastes to sewage treatment plants or septic systems where the water is treated before it re-enters the environment. Storm sewers transport rain and snow melt water from our streets, parking lots, rooftops and landscape to nearby streams, rivers, lakes and oceans. While these two sewers are usually separate systems, some older municipalities have portions of their system that are combined. A Combined Sewer Outflow (CSO) occurs when a sanitary sewer and storm sewer line is connected and outlets to a surface water body, usually after a significant rainfall event. Since the combined sewer pipe and sewage treatment plant cannot handle the added water flow during significant storm events, it exits at the combined sewer outflow. This often leads to surface waters being polluted by sanitary sewage. Click on the attachment entitled "Sewers" above for a visual aid.