Decommissioning of a septic system

In and around Byford, the provision of a reticulated sewerage system by the Water Corporation will make many septic systems and on-site disposal systems obsolete. When you connect your premises to the sewerage system, regulations require the existing sewage disposal system to be decommissioned.

How to decommission an existing septic system

  • Tanks should be emptied in accordance with the Environmental Protection (Liquid Waste) Regulations 1996. This requires the services of a licensed liquid waste contractor. Names of such contractors are available from the Yellow Pages under Septic Tank Cleaning Services.
  • The septic tanks and leach drains may be removed or, where this is not practicable, they may be broken in situ and back-filled with clean fill.

Additional references and links

Understanding septic tank systems 

For further information, please contact Health Services on 9526 1111 or by email info@sjshire.wa.gov.au