Johns Creek had alum added to the retention pond at Newtown Park to clear up the water’s murkiness. No one expected what happened next. CITY OF JOHNS CREEK

Pond-clearing goes awry in Johns Creek

Johns Creek wants residents to know it’s sorry about the fish.

A dredging operation left the water in the Newtown Park retention pond murky with suspended particulates, the city said. The particles were expected to eventually settle out, but they never did, and the water stayed cloudy. So, last week, the pond was treated with alum, commonly used in waters containing wildlife to eliminate cloudiness.

The alum appeared to work. However, the city said on its website, “it appears that numerous fish died over the weekend.”

“The city deeply regrets this result and will further monitor the water conditions in the pond until it reaches full stability. At this point, it appears that most of the fish killed are the smaller ones and that the larger koi are surviving. Turtles also appear to be unharmed.”

Once conditions stabilize, the city will look into revitalizing the pond’s wildlife, officials said.


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