Combined Sewer System
The Village of La Grange operates a combined sewer system
in which the sanitary and storm water is combined into a single pipe. In heavy rain events this system can be surcharged, resulting in flooding that can include combined sewer backups and standing water in depressional areas.
In response to flooding events, the Village has hosted several educational workshops on flooding. The information provided at these workshops including both the power point presentation and video of the presentation can be found by clicking here
The Village routinely maintains the sewer system through televising, cleaning and sewer lining. Residents can assist in the effort of keeping catch basins clear by removing debris or contacting Public Works to do so.
Village Flood Control Objectives
Over the last several years, the Village has experienced multiple high intensity rain events that exceeded the limited capacity of the Village’s sewer system resulting in flooded basements, overland flooding in a number of depressional areas, and private property drainage issues.
As a result, a tiered approach to the prioritization of flood control objectives was identified. Tier 1 implements solutions to address overland flooding and water pooling in depressional areas and Tier 2 reduces the frequency of combined sewer backups.
To fund the first phase of initiatives, the Village Board enacted a voter authorized increase in the local retail sales tax and approved increases in the Municipal Utility Tax, Simplified Telecommunications tax and sewer rate.
50th Street Storm Sewer Project
This project includes the construction of a new storm sewer along 50th Street from East Avenue to Waiola Avenue, a new storm sewer on 8th Avenue from 50th Street to 48th Street, and a new storm sewer on 48th Street from 8th Avenue to 9th Avenue. Construction is expected to begin in 2016. Construction notices will also be available on the Village’s website during the project.
Relief Sewer Projects
There are also a number of other long-term initiatives the Village has identified to address flooding, which includes relief sewers.
To view an informational brochure about combined sewers and the Deep Tunnel or TARP (Tunnel and Reservoir Plan), please click here.
To report a flooding event, we request that you fill out the attached form.
More information regarding proper cleaning of a flooded home is available through the Illinois Department of Public Health.