Cook County has permanent collection sites in Naperville, Rockford and the city of Chicago. They are looking to add one in the southside of Cook County. We will let you know as soon as it opens but until Naperville Household Hazardous Waste Drop Off facility is 156 Fort Hill Dr., Naperville, IL. 60540. Questions call 630-420-6095 They are open Saturdays and Sundays 9AM to 2PM. Closed on Holidays.