Blaxland Sustainable Leachate Treatment Wetlands

Sydney Olympic Park Authority (the Authority) holds an Environmental Protection Licence (10243) issued under the Protection of the Environment Operations Act 1997, for the discharge of treated wastewater from the Blaxland Sustainable Leachate Treatment Wetlands.

Wastewater is received from the Blaxland remediated landfill system and treated at the Blaxland Sustainable Leachate Treatment Wetlands to a standard that is safe to discharge.

As part of the Environmental Protection Licence (10243), the Authority undertakes a stringent monitoring program including monitoring of treated wastewater prior to discharge. View our monitoring data.

Sydney Olympic Park Authority takes a diligent approach to providing this data publicly and in line with regulatory requirements.

In the event of a suspected pollution incident please contact Sydney Olympic Park Authority on 02 9714 7888 (Open Monday to Friday, 9am to 5pm) or email After hours please contact Security on 02 9714 7700.

The Authority will report all incidents to the relevant regulatory authority listed below:

  • Environment Protection Authority 131 555 (& Auburn Council 02 9735 1222 if the incident is not caused by SOPA activities)
  • Ministry of Health, Parramatta Office of the Public Health Unit 02 9840 3603 (after hours to Westmead Hospital 02 9845 5555 and ask for the Public Health Officer on call)
  • Workcover 131 050
  • Fire & Rescue NSW 000 or 02 9265 2999