ST. LOUIS (AP) -- Restoration work at the historic Old Courthouse in downtown St. Louis is on hold after a positive test for lead.
The building was abated for lead more than 20 years ago, but testing earlier this year showed a level slightly higher than the Environmental Protection Agency's threshold.
Building Restoration Corp., the firm renovating the building's stone cornices, decided to have all 12 employees working on the project attend a lead awareness program this week, shutting down the project temporarily.
Work is expected to resume on Monday.
The Old Courthouse was where the slave Dred Scott sued for freedom. It is now operated by the National Park Service. The $3.5 million restoration of the cornices is expected to be completed by the end of the year.