An afternoon walk along the Wollongong foreshore with her dog took an unusual turn for Jennie Saban on Monday.
As she was reached the footpath/cycleway in Bank Street around 1.30pm she noticed the adjacent waterway turning green.
Mrs Saban, who has lived in the area for five years, said she had never seen anything like it before.
She watched as fluoro green water started flowing into Gurangaty Waterway from the culverts under the road entrance to Wollongong Golf Club.
“It seems to have come from further up towards Corrimal Street,” Mrs Saban said.
About a 25-metre section of water adjacent to Bank Street was affected as of Monday afternoon and Mrs Saban held concerns for the ducks and water birds closer to the beach.
Wollongong Golf Club general manager Leigh Hingston said the colour did not come from anything related to the golf course operations.
“We were really concerned when we saw it,” he said.
“It appears to have come from an inlet from the city CBD.”
“Council investigated the inflow of water to the clubs property from the CBD.
“They assured us it was not a concern and that it would cause no harm to the natural environment.
“Wollongong Golf Club takes its environmental responsibilities seriously and contacted the appropriate authority immediately after the colour discolouration was identified.”
The Illawarra Mercury contacted the Environment Protection Authority and Sydney Water.
Neither authority had received any reports about the incident but were now looking into the cause.