CHICAGO — Stay out of Lake Michigan.
That's the advice of the Chicago Park District, which issued a swim ban at all of its beaches Tuesday due to water quality.
The ban comes ahead of Fourth of July weekend and a string of warm, sunny days.
Beaches will reopen to swimming only after tests confirm the water is safe for swimming. The earliest that would be is Wednesday, parks officials said.
After a storm ripped through the Chicago area, dumping nearly two inches of rainwater throughout Cook County, the Metropolitan Water Reclamation District of Greater Chicago opened up flood control structures that released sewage into Lake Michigan, officials said.
When the locks are open, the park district automatically institutes a swim ban at its 27 Lake Michigan beaches, parks officials said.
Water at each of the beaches is tested daily during the week, and on weekends if necessary. The testing takes 18 hours to process.
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