Several beaches in Sydney's Northern Beaches area were closed after mysterious marble-sized balls containing faecal bacteria and saturated fatty acids washed ashore. Authorities are investigating the source of these contaminating balls.
Mysterious Balls on Sydney Beaches Found to Contain Harmful Bacteria

Mysterious Balls on Sydney Beaches Found to Contain Harmful Bacteria
Preliminary tests reveal that the strange balls have been linked to faecal contamination, prompting beach closures and further investigations.
Sydney's Northern Beaches have been shaken by the emergence of strange marble-sized balls found along its shores, leading to the closure of nine popular beaches, including Manly and Dee Why, on January 14. These mysterious objects, initially perplexing to authorities, have now been confirmed to contain harmful substances including saturated fatty acids, E. coli, and faecal bacteria, according to the Northern Beaches Council.
Following this alarming discovery, the council has forwarded samples of the debris to the New South Wales Environment Protection Authority (EPA) for further testing and analysis. The presence of these balls mirrors a previous incident in October, where thick black blobs with similarly hazardous constituents appeared along the coastline, leading to additional beach closures and clean-up operations.
In light of the recent findings, the Northern Beaches Council has advised the community to avoid handling the strange balls and to report any sightings to local authorities. The latest collection efforts at harbor beaches were completed this week, although the mayor of Northern Beaches, Sue Heins, remains vigilant. She expressed hope that the EPA’s analysis will elucidate the origin of these balls, allowing preventive measures to be taken to protect the beaches in the future.
The confusing nature of these debris pieces has raised significant questions. Previously, the October blobs, originally termed "tar balls," were found to harbor a plethora of contaminants ranging from cooking oil and soap scum to illegal drugs and pharmaceuticals. Scientists compared these findings to 'fatbergs' typically formed within sewage systems. Despite ongoing concerns, Sydney Water has assured residents that their water treatment facilities are operational and have not reported any waste system problems.
As the investigation continues, the local community is urged to remain watchful, and the council is committed to maintaining regular inspections to ensure the safety and cleanliness of its beloved beaches.