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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

Travel back in time to early Chicago to see how we reversed the Chicago River and developed wastewater treatment technology. Go behind the scenes and underwater to see how we transform water, descend 300 feet into the deep tunnel system, and watch our electrofishing crew at work sampling fish on the Chicago River. 

Our virtual tours are free and open to the public. Registration is required. 

Upcoming virtual tours

Friday, June 13, 2025
2 p.m.-3:15 p.m.
Register

Thursday, July 10, 2025
10 a.m.-11:15 a.m.
Register

Thursday, August 7, 2025
2 p.m.-3:15 p.m.
Register

Virtual Tour Video