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Event Brief

Reflecting Pool coating peeling after algae turned water green

National Park Service crews are cleaning algae after the Reflecting Pool turned bright green, as a blue coating begins peeling.
WHO: National Park Service crews
WHAT: The Reflecting Pool’s water was turned bright green by algae, and the “American flag blue” coating is coming off.
WHEN: Jun 20, 2026 at 9:29 AM ET
WHERE: Washington, D.C.
WHY: Cause not yet established.
How this story developed (showing 2 of 2 earlier reports)

Reporting from 6 identified publishers across this event arc.

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Publishers represented across this event arc

These publishers contributed reporting to the broader event history. Not every source addresses the specific development described above.

How this brief is built: The BriefBrief correlates multiple sources into one evolving event brief, updated as new facts emerge.

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