Overflow Action Alert

The MWRD has issued an Overflow Action Day alert. Please limit water usage to absolute necessities. Visit our Overflow Action page for more information.

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Metropolitan Water Reclamation District of Greater Chicago

"Chicago's flood control capacity is nearing capacity with wet weather looming," WBBM Radio, 780-AM, 105.9-FM

August 10, 2026

Audio: The McCook and Thornton reservoirs, designed to hold billions of gallons of rainwater, are nearly full.

https://www.audacy.com/podcast/chicago-all-local-fa0f2/episodes/chicagos-flood-control-system-is-nearing-capacity-with-severe-weather-looming-35367

 

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Stormwater

Established in 1889, the Metropolitan Water Reclamation District of Greater Chicago (MWRD) is an award-winning, special purpose government agency responsible for wastewater treatment and stormwater management in Cook County, Illinois.

 

For more information:

public.affairs@mwrd.org

312-751-6633