What is the risk category for my property?

High risk systems
High risk systems are generally defined as those systems located in close proximity to recognised recreational swimming, oyster harvest areas or oyster lease areas.

Medium risk systems
Medium risk systems are generally defined as those systems not located in close proximity to recognised recreational swimming, oyster harvest areas or oyster lease areas, and those systems that are not defined as Aerated Wastewater Treatment Systems.

Low risk systems
Low risk systems are generally defined as those systems that use sensitive biological agents and chemical processes to produce a higher quality effluent than a standard septic tank. These systems are commonly known as Aerated Wastewater Treatment Systems (AWTS) and have been identified as low risk given the required regular inspections and maintenance of the systems in accordance with the requirements of NSW Health