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Jefferson Memorial

National Park Service Begins Test Of Laser Treatment For Removal Of Jefferson Memorial Biofilm

The National Park Service is preparing to begin a test an experimental laser removal treatment of the biofilm affecting the Thomas Jefferson Memorial, most evident on the dome. The project will clean a test area of 1,000 square feet on the northeast side of the memorial that will allow the National Park Service to evaluate the effectiveness of the technique. The results of this cleaning test will be used to determine how the remainder of the biofilm on the memorial’s dome and pediment might be cleaned.
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