Sewer Systems

The Village’s sewer system serves a population of approximately 27,500. The area east of Ridge Road is serviced by a combined sewer system, while the area west of Ridge Road is serviced by a separated sanitary and storm sewer system. The entire system collects wastewater from approximately 9,000 residential, commercial, and institutional buildings, and storm water from approximately 2,500 acres of intensely urbanized area.

Stormwater Management – Please click this link for Stormwater Tips and more information about rain barrels, rain gardens, Combined Sewer Overflows, Resident Assistance Programs, and Sewer Regulations, Studies, and System Improvements.

Sewer Overflows & Basement Backups – If you are actively experiencing a sewer backup, please call Public Works at 847-853-7500, or the non-emergency Police at 847-256-1200 (after hours). To report a sewer backup after the fact, please click here.

Street Flooding – If you notice water standing over street catch basins, contact Public Works at 847-853-7500 or pubworks@wilmette.com, or try to remove the debris so water can enter the storm sewer and prevent street flooding.

Good Housekeeping Tips – Fats, oils, and grease can wreak havoc on your plumbing. These items should never be poured down a sink drain or into a toilet. Instead, allow them to cool, and dispose of them in the trash. Click here for more information.

Separate Storm Sewer Study (West of Ridge Road)

West Park Sanitary Storage Project

Do NOT follow this link or you will be banned from the site!