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Hinsdale Middle School will be closed until at least early next week after tests confirmed that mold was growing in the school and officials voted Monday night on a remediation program that will cost the school district nearly $400,000.
District officials originally canceled Tuesday and Wednesday classes for the school's 800-plus students and closed the building Friday to allow crews to do a deep cleaning of the school, which was built in 1976.
But that closure was extended until at least next Tuesday after school board members voted at an emergency meeting Monday night to pay for remediation and cleaning work at the school, at a cost of $384,512.
Officials involved in the work told board members that they have removed 90 percent of the mold from the building and that much of the cost of their further work would go toward cleaning its duct system.
Superintendent Renee Schuster said over the weekend that test results from samples of mold found Thursday by a cleaning crew showed low concentrations of mold spores on drywall and surface samples tested.
Officials with a company called SERVPRO were at the school to perform deep cleaning and remove wet drywall after water damage that initially occurred when a pipe burst during a frigid cold snap.
More leaks were discovered after school resumed classes last week.