A beloved pond in a Queens park has lost nearly 94% of its depth in some places — which could lead to a “mass aquatic die-out” of fish, turtles and waterfowl, warns the Girl Scout who uncovered the dire situation.

Emilia McKinney, a 17-year-old senior at Bronx Science High School, discovered that what is left of Golden Pond in Bayside’s Crocheron Park is awash with feces, deadly algae and other filthy pollutants. 7

“The overall health of the pond is actively worsening with each flash flood and each heavy rainfall, which causes mudslides in the pond and makes it shallower and shallower,” Emilia told The Post, calling the pond a “breeding ground for algae blooms.”

The teen braniac made the shocking discovery over the summer during the seven weeks she spent monitoring the urban oasis

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