Most unsewered developments in Western Australia use septic tank systems to treat and dispose of sewage, also referred to as wastewater. Septic tank systems generally consist of one or two watertight cylindrical tanks called septic tanks and one or two sets of drainage receptacles which have holes in their side sand no base e.g. leach drains or soakwells.

To find out more information on septic systems please click on these links:

To download an application form to install a Septics system, please click here to go to the Waste Water Disposal page.