To dispose of latex paint, simply let it air dry or mix some absorbent material into it. When dry, set it out for your regular refuse service. You may need to leave the lid off the can to demonstrate to hauler personnel that it is indeed a dry material and not a full, liquid can of paint.
To dispose of oil-based paints or other unwanted household chemicals, check with the IEPA at www.epa.state.il.us for a current list of the one-day household hazardous waste collection events in your area.
You may also check with the Naperville HHW site located at Fire Station #4, 1971 Brookdale Road three quarters of a mile south of I-88 on Route 59. The facility is open on Saturday and Sunday from 9 a.m. to 3 p.m. excluding holidays. For more information, call 630.420.6700 x7559. For a list of items accepted at this site, lease see page fourteen of the Grundy County Green Guide.