Application to Install an Effluent Disposal System
All onsite effluent disposal systems in the City of Kwinana must be approved by the City’s Environmental Health team.
You can lodge an Application for a Wastewater System online under 'Planning, Building, Health Applications' via our online portal Kwinana Connectonline under 'Planning, Building, Health Applications' via our online portal Kwinana Connect.
To apply online, you will be required to complete and upload the Application to Construct or Install an Apparatus for the Treatment of Sewage and submit it with the required fee, plans, and specifications.
This fee covers both:
- Approval to Construct, and
- Permit to Use (issued after installation and final inspection).
If your property generates more than 540L of sewage per day (except for single dwellings with up to 8 people), approval from the Department of Health is required.
Important: You must not use an effluent disposal system until a City officer has approved it and issued a Permit to Use.
Selecting an Effluent Disposal System
Some areas in Kwinana must use nutrient-retentive effluent disposal systems to protect local water sources from nitrogen and phosphorus pollution.
- Nitrogen-sensitive areas: Wellard (West of Freeway), Kwinana Beach, Naval Base, Hope Valley, Postans, The Spectacles, Mandogalup.
- Phosphorus-sensitive areas: Wellard (East of Freeway), Wandi, Casuarina, Anketell.
To check if your property is connected to the sewer system, contact Water Corporation at 13 13 95 or visit their website.
For a list of approved effluent disposal systems, visit the Department of Health’s website..
Greywater Treatment Systems
Greywater systems reuse wastewater but do not treat water from toilets or kitchen sinks. For installation advice, see the advice on the installation of greywater systems.
Mechanical equipment wash down
You must not wash vehicles or machinery unless your property is connected to a sewer or has City or Department of Health approval for an on-site wastewater disposal system. Requirements for vehicle and machinery wash-down areas.
For wastewater disposal guidelines, refer to Department of Water and Environmental Regulations Water Quality Protection Note 68.
Legislation
Effluent disposal systems must comply with various regulations including: