Updated
Updated · The New York Times · Jun 26
Lincoln Reflecting Pool Turned Green After 36-Hour Nanobubbler Removal for June 12 Event
Updated
Updated · The New York Times · Jun 26

Lincoln Reflecting Pool Turned Green After 36-Hour Nanobubbler Removal for June 12 Event

3 articles · Updated · The New York Times · Jun 26

Summary

  • Algae blooms spread across the Lincoln Memorial Reflecting Pool after water-purification nanobubblers were removed and reinstalled 36 hours later, leaving the water green.
  • The National Park Service asked contractor Greenwater Services to take out the machines before a June 12 event promoting President Donald Trump's UFC-themed White House birthday celebration, according to two people briefed on the decision.
  • The temporary system—installed under a $1.7 million no-bid contract—used fenced-in machines, hoses and generators around the pool, which officials viewed as an eyesore for the event.
  • Photos from that evening showed the pool without the equipment and still dark blue; by the time the system returned, algae had begun spreading unchecked.

Insights

After millions spent on renovations, why does the iconic Reflecting Pool keep turning green?
Could simple zooplankton solve an algae problem that multi-million dollar technology can't?