Sewer Services

Operation & Maintenance

The Public Works Department is responsible for the operation and maintenance of the Village’s sewer and stormwater collection and conveyance systems, which include 72 miles of combined, storm, and sanitary sewers.

Combined Sewer System

The Village of La Grange operates a combined sewer system in which the sanitary and stormwater are combined into a single pipe. In heavy rain events, this system can surcharge which may result in sewer backups and standing water in depressional areas. The Village regularly maintains the sewer system through televising, cleaning and performing sewer lining, which restores the functionality of failing conveyance pipes. Residents can assist in the effort of keeping catch basins clear by removing debris or contacting the Department of Public Works at 708-579-2328 to report debris that are preventing drainage.

Preventing Sewer Backups

  • Have a licensed plumber inspect your basement and consider the installation of a check valve or overhead sewer if it's not already installed. 
  • Determine if the installation of a check valve/overhead sewer qualifies under the Sewer Backup Prevention Grant. Qualifying projects receive 50% reimbursement of eligible expenses, with a maximum reimbursement of $3,000 for backflow check valve installation and a maximum of $5,000 for the installation of an overhead sewer.  Funds are available on a first come, first-served basis and are considered upon receiving a complete application.
  • Disconnect downspouts so they drain onto landscaping instead of into the sewer system. Make sure to direct disconnected downspouts away from foundations and neighboring properties. Consider installing a rain garden.
  • Downspouts can be connected to rain barrels (available from the Metropolitan Water Reclamation District (MWRD) and other suppliers) to use rainwater for things such as watering a garden or landscaping.
  • Replace driveways, walkways, or patios with permeable pavers. The installation of the pavers must also include proper drainage approved by the Village.

Relief Sewer Projects

There are three long-term relief sewer initiatives aimed at addressing flooding throughout the Village, which are in various stages of progress.

Construction Standards

Requirements for storm water management and grading exist for projects that include constructing a new house, addition or planned development. A grading and storm water management plan must be submitted by a civil engineer for developments that exceed certain thresholds. Plans are required to address localized grading around the property and to reduce the impact of storm water on the sewer system.  For the construction of a typical new house, storm water management includes the installation of below grade retention systems, and site grading that's in compliance with local codes and generally accepted engineering practices.