Become 3 Rivers Proud
Want to know when overflows are affecting our waterways?
What are overflows?
During rainstorms and heavy snowmelt, too much water enters the ALCOSAN system, triggering overflows of diluted untreated wastewater into the rivers.
Remove it. Hold it. Move it. Treat it.
Discover the four ways to manage overflows caused by excess rainwater:
How much wastewater does ALCOSAN treat?
Up to 250,000,000 gallons a day. That’s 5,000,000 50-gallon bathtubs!
ALCOSAN Neighborhood Litter Clean Up Day
8:00 am - 12:00 pm
Spring Kids Play at Robinson Mall
1:00 pm - 2:00 pm
Alcosan Open House – the region’s largest environmental festival
9:00 am - 4:00 pm
Join us for a fun-filled day of hands-on exhibits, tours, demonstrations and activities for all ages! Park for free or ride the free shuffle from the North Side T Stations.