Hazmat crews are attempting to clean up thousands of litres of waste that spilled into water on Sydney’s Northern Beaches yesterday.

A large barge, that had been carrying a sewage truck and a boat crew, capsized at Great Mackerel Beach on Wednesday afternoon.

Emergency services were called to the scene, where they found crew members hanging onto the side of the overturned barge.

“On arrival, we’d found the occupants from the barge had managed to safely make their way away from the barge to a nearby boat,” said NSW Ambulance spokesperson, according to 9 News.

As the barge overturned, thousands of litres of waste spilled into the water from the sewage truck which could take a hazmat team days to clean up.


Booms have been set up around the barge to contain the waste, diesel and hydraulic fluid.

Four crew members were treated at the scene by paramedics, with one being taken to hospital for minor injuries.

An investigation is underway to determine the cause of the spill.