Mold was discovered in unused classrooms earlier this week at the Hartsville Adult Education site, according to a news release.
Officials say that a firm specializing in environmental testing and treatment did air quality and other tests in the classrooms and throughout the building. The firm determined that only a limited area was impacted and the cleanup is currently underway.
The building impacted is the large three-story brick building on the campus of Thornwell School for the Arts, the release said.
The Adult Education classrooms and building will not be accessible to students or teachers until the rooms have been treated and cleaned, the release said. The cleanup is scheduled to be finished by the end of the week.
The release said students and staff at Thornwell School for the Arts are not impacted by the cleanup.
"The safety of our students and staff is of utmost importance," said Dr. Eddie Ingram, superintendent. "I am thankful the problem is limited and treatable. I look forward to another successful year for the Adult Education program."