09/30/2026
With heavy rain underway across the Chicago area, the Metropolitan Water Reclamation District of Greater Chicago (MWRD) is asking residents to reduce water use during and after the storm to help prevent flooding and protect our water quality.
See below for simple actions you can take to easily reduce your overall water use. These small steps can help create additional capacity in our water management systems while MWRD works to manage billions of gallons of water and mitigate flooding.
You can also find other resources and information concerning overflow, flooding and water safety in the post below.
Overflow Action Alert
Heavy rain is expected in the Chicago area today. Reduce your use of water during and after the storm to help prevent flooding and protect water quality:
• Delay showers and baths
• Flush less frequently
• Wait to run the dishwasher or washing machine
Flooding and sewer backups can happen for a variety of reasons. To help prevent flooding inside or around your home, there are actions you and your family can take before and during rainfall.
Learn how to prepare for stormwater at this link: https://mwrd.org/community-action/you-can-help-prevent-flooding-and-protect-water-quality.
Learn more about Combined Sewer Overflow prevention here: https://mwrd.org/community-action/overflow-action
Sign up to receive Overflow Action Alerts via text
https://lp.constantcontactpages.com/su/YhH2xGP/MWRDSignup
Learn what you should do during flooding:
https://mwrd.org/community-action/what-you-should-do-during-flooding
For more information and explanations about how the MWRD’s infrastructure and waterway system operate, visit these links:
Learn about the Tunnel and Reservoir Plan (TARP)
https://mwrd.org/what-we-do/tunnel-and-reservoir-plan-tarp
Understand how the Chicago Area Waterway System works
https://mwrd.org/what-we-do/reducing-flooding/chicago-area-waterway-system-caws
Learn about the types of sewer systems in Cook County
https://mwrd.org/community-action/understanding-your-sewer
Request a presentation for your community
https://mwrd.org/education/speakers-and-outreach
Tour our facilities
https://mwrd.org/education/tours
Municipal partners can explore stormwater partnership opportunities
https://mwrd.org/stormwater/partnerships
The top of the MWRD’s website displays a notification if an Overflow Action Alert is active. Visit mwrd.org.
Overflow Action Alerts are a joint initiative of the MWRD and Friends of the Chicago River.