Crews were working to repair an overflowing sewer near a park in Fort Lauderdale on Friday.
City officials said the incident happened near George English Park in the area of Sunrise Boulevard and U.S. 1.
A pumping contractor was working when they discharged about 3,000 gallons of sewage into the stormwater system instead of the sewage system at the park.
The sewage then entered the George English Lagoon.
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Nearby boat ramps were closed and a no-swim advisory was issued while an emergency cleanup of the water was underway.
"We understand the gravity of this situation and the potential concerns it may raise. This is unacceptable. Rest assured, we are fully committed to resolving this matter promptly and transparently," Fort Lauderdale Director of Public Works Alan Dodd said in a statement.
