Aerobic Treatment Units (ATUs) are self contained electrical wastewater (sewage) treatment systems for use on properties that cannot be connected to the sewerage main. They are designed to receive and treat all household wastewater from the toilet, bathroom, kitchen and laundry. There are several ATU designs approved for use in single houses in Western Australia. Click here. to view the approved systems

They can also be scaled up in size and used in multiresidential and non-residential developments. However, such larger systems require individual assessment and approval of their technical design.

To learn more about ATU’s, click here

To download an application form to install a Aerobic Treatment Unit (ATU) system, please click here to go to the Waste Water Disposal page.