A Manhattanite first sent the phenomenon viral on Thursday, posting photo and video of the bright-hued liquid pooling on a sidewalk near the World Trade Center.
Yes, it’s the Post. The story was too good to pass up
“This is water full of green dye. Plumbers frequently use harmless, fluorescent green dye to detect leaks in plumbing and sewage systems,” it read. A Wikipedia link to a page about “dye tracing” was also included.
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You’re right. No definitive answer. My bad.