Clean-up notice issued for Flat Rock Creek fish kill

The NSW EPA, with the help of Department of Planning and Environment (DPE) scientists, has been sampling and monitoring Flat Rock Creek to better understand the impacts of a recent pollution incident which caused a fish kill.

On 6 December 2022, the EPA received reports of a fish kill and pollution incident in Flat Rock Creek in Naremburn and Cammeray.

The EPA, with the help of DPE, has been sampling and monitoring Flat Rock Creek during and after clean-up of the pollution incident to understand the cause of the fish kill.  

This includes sampling to test for contaminants and continuing to monitor dissolved oxygen levels in Flat Rock Creek.  

Water quality monitoring has shown a general trend of improvement in dissolved oxygen levels in some parts of Flat Rock Creek.

However, full results are required to determine the cause of the fish kill as there are a number of factors that may have contributed.

The EPA will continue to keep the community informed as the investigation progresses.

Clean-up and advice

The EPA issued a Clean-Up Notice to Cleanaway Pty Ltd requiring sampling of Flat Rock Creek on a weekly basis until further notice. The clean-up has been completed, however monitoring by Cleanaway continues.

This follows a fire at Cleanaway’s Artarmon waste storage facility on 5 December 2022 which the EPA believes may have caused a pollution incident at the creek.

The EPA will continue to work with Willoughby Council to monitor the condition of Flat Rock Creek.