WATCH THE PROCESS OF WATER RENEWAL – See first-hand how the Metropolitan Water Reclamation District of Greater Chicago transforms water during a tour at at the Calumet Water Reclamation Plant, 400 E. 130th St in Chicago. The tours, between 10 a.m. and 2 p.m. Saturday, are open to all ages. Dress for an industrial environment—no open-toed shoes or shorts. Information is at 312-751-6633.
DOUGHNUTS AND DONATIONS – Watch for police officers standing outside and on the roofs of local Dunkin’ stores to raise money for Special Olympics Illinois. Cop on a Rooftop runs from 5 a.m. to noon Friday.