Wastewater legislation and guidelines

The following resources support compliance with the Health (Treatment of Sewage and Disposal of Effluent and Liquid Waste) Regulations 1974 and Health (Temporary Sanitary Conveniences) Regulations 1997.

Legislation

• Health (Treatment of Sewage and Disposal of Effluent and Liquid Waste) Regulations 1974 (external site)
• Health (Temporary Sanitary Conveniences) Regulations 1997 (external site) 

Government policy

• Stae Planning Policy 2.9 - Water and associated guidelines (external site) 

Code of Practice

• Code of Practice for the Reuse of Greywater in Western Australia (PDF 1.3MB)
• Code of Practice for the Design, Manufacture, Installation and Operation of AerobicTreatment Units (PDF 886KB)
• Code of Practice for Product Approval of Onsite Wastewater Systems in Western Australia (1.1 MB)

Supporting guidelines

• A Compilation of Australian Standards on Water Holding Tanks (PDF 305KB)
• Best practice guidance for the notification and risk management of sewage overflows into buildings (PDF 315KB)
• Best practice guidance for reducing health risk for workers handling sewage, biosolids or recycled water (PDF 103KB)
• Certification for installation of wastewater treatment systems
• Guidance on applying for approval of installation of a commercial onsite wastewater system
• Guidance note for independent third party engineering verification
• Guidance for the use of Sewage Holding Tanks or Holding Tanks associated with Mobile Ablution Blocks and Mobile Accommodation Units
• Guidance on Site and Soil Evaluation for Onsite Sewage Management (PDF 260KB)
• Wastewater after cyclones floods and other disasters (HealthyWA)
• Western Australian Guidelines for Biosolids Management (PDF 1.76MB)