Lincoln Reflecting Pool cleared of algae using nanobubbler technology

The Lincoln Reflecting Pool has been restored to clear, blue water after crews used nanobubbler technology and vacuuming to remove algae that had accumulated since the pool's last refill. Officials said the technology killed the algae that previously clouded the water after past reopenings.

National Park Service teams then vacuumed dead algae from the bottom, revealing an American Flag Blue coating.

Cleanup and maintenance The process followed refilling and is expected to finish within days. Officials noted the section nearest the Lincoln Memorial has already been cleared. A letter from the deputy assistant secretary for land and minerals management stated the nanobubbler system proved more effective than earlier methods.

The same letter said previous administrations had seen rapid algae growth after refilling.

Vandalism investigation U.S.

Park Police released surveillance images and asked the public for help identifying a person in connection with damage to the pool. Officials described the incident as part of a Destruction of Government Property investigation. The secretary of the interior told ABC's This Week that the pool sustained multiple gashes totaling about 350 feet.

The secretary said crews may be able to repair the damage without draining the entire pool. >"The Reflecting Pool has been a big success. And we've got 340 million people in this country that are celebrating 250.

costs Officials said the vandalism occurred along the edge of the pool and had not been anticipated. They added that decades had passed without similar incidents at the site. The secretary noted that repair costs stem from the damage rather than the algae treatment itself. Work on the pool continues under National Park Service oversight.