Onsite Wastewater

Grey water management, septic tanks, hybrid systems and composting toilets

On-site wastewater management systems

An on-site wastewater management system receives and/or treats wastewater and sewerage and then disposes this into an approved disposal system or a re-use system.

The Building Act 2016 requires that approval be obtained for the installation of an on-site wastewater management system. This also includes upgrades to existing systems, a change in capacity of a system or increased loading on an existing system due to a property extension/alterations that add habitable rooms. You will be required to apply for a plumbing permit and your application must be accompanied by a site specific design report from a suitably qualified person.

A plumbing permit is required for any design and connection of on-site water management systems, including:

• Septic tanks
• Aerated wastewater treatment systems
• Grey water
• Waterless composting toilets
• Hybrid systems

For more information on what is required before you install an on-site wastewater system click here or phone Council on 6393 5320 to speak with an Environmental Health Officer.


Safe greywater re-use

Greywater can be a valuable resource if used correctly. The quality of greywater varies significantly and can contain contaminants such as fats, oils, sodium, lint and hair. Using greywater to water garden plants, fruit trees and vegetables is not recommended. However, there are a number of ways to re-use greywater safely.

Download or view the Greywater Re-Use Guide