Septic apparatus – decommissioning a septic apparatus notification form

Property owners should advise the City once a septic apparatus has been decommissioned, by completing and submitting a decommissioning form, together with a copy of the liquid waste receipt as evidence of the pumping out of the system (where relevant).

Further information on the decommissioning of a septic apparatus can be found in the article ‘Septic tanks: waste water disposal, installation and decommissioning’.

  • Your Details

  • Company Name (where applicable)
  • Septic System Details

  • DD slash MM slash YYYY
  • The septic tanks or aerobic treatment units, had the base of the tank broken and/or was :

  • Please enter a number less than or equal to 999.
  • and the soak wells were :

  • Please enter a number less than or equal to 999.
  • and the leach drains were :

  • Please enter a number less than or equal to 999.
  • and the resultant voids backfilled with clean sand and compacted.

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Greywater reuse

Greywater is the term used to describe the wastewater generated from bathrooms, laundries and kitchens, but does not include toilet waste water. The opportunity exists for greywater to be reused to irrigate gardens. Considering the dry environment in many parts of Western Australia, it is important that water is used efficiently and conserved whenever possible. Most households won’t produce enough greywater to supply their entire garden needs, however reusing greywater should make a significant contribution to water conservation.

To encourage the reuse of greywater, the City is currently offering a rebate scheme which will refund the City’s approval fees under the Health (Treatment of Sewage and Disposal of Effluent and Liquid Waste) Regulations 1974, to install and operate a Greywater System.

Installing a greywater system

The Code of Practice for the Reuse of Greywater in Western Australia (available on the Health Department website) outlines acceptable greywater reuse practices to ensure the conservation of ground and surface supplies and the protection of health standards. The installation and operation of all greywater systems must comply with the code. The installation of a greywater system also requires local government approval. For greywater reuse systems where there are more than ten occupants in a building, approval from the Chief Health Officer is required.

Please note that the operation and maintenance of the greywater system is the responsibility of the householder.

For the steps involved in obtaining approval for a greywater reuse system, please refer to our Reusing Household Greywater Factsheet.

Applications requirements

Lodging an application

You can lodge an application to install a greywater reuse system:

By completing the application form and submitting it:

  • In person by visiting the City of Joondalup Administration Centre
  • By Post to the City at PO Box 21, Joondalup WA 6919

Septic tanks – waste water disposal, installation and decommissioning

Septic tank systems provide a method of on-site wastewater disposal that can be used to allow development of land where deep sewerage is not available.

Most of the City’s suburbs are now connected to the deep sewerage system. Older sections of Mullaloo, Burns Beach, Sorrento as well as parts of Marmion and Duncraig, were developed before deep sewerage was available. Those suburbs and properties utilised septic tank systems for wastewater disposal. Most of these suburbs have since been provided with deep sewerage as part of the Water Corporation’s Sewerage Infill Program, however it is possible that old septic tanks may still be in the ground.

In the area of Kingsley between Lake Goollelal and Wanneroo Road and a very small pocket of properties located in Joondalup, deep sewerage is still not available and the properties in those areas use septic tanks or alternative on-site effluent disposal methods such as Aerobic Treatment Units for wastewater.

Buildings, foundations and most structures are not permitted within 1.2m of septic tanks or 1.8m from effluent soak wells and leach drains. Areas above septic tank systems should not be paved unless access to the system is still available without requiring the removal of paving. Septic tank systems can utilise a large area of a property that cannot be built on. This restriction can prevent owners of houses using septic tanks systems from installing pools, retaining walls, gazebo’s and granny flats on their property. Once deep sewerage is available to a property, owners may connect to the sewer and decommission their septic tanks and waste water system.

Installing a septic tank apparatus

The installation of a Septic Tank Apparatus must comply with the Health (Treatment of Sewage and Disposal of Effluent and Liquid Waste) Regulations 1974.

For the steps involved in obtaining approval for a septic tank system, please refer to the Septic tank information sheet or contact an Environmental Health Officer.

Decommissioning your septic system

Notification to the City should be provided, once a septic apparatus has been decommissioned, by completing and submitting a decommissioning form together with a copy of the liquid waste receipt as evidence of the pumping out of the system.

The form must indicate the number of septic tanks and soak wells or leach drains that were removed.

A septic system and waste water system must be decommissioned within 60 days of a change of ownership, following connection to sewer.

Lodging a decommissioning form

You can lodge a decommissioning form online (preferred): 

Or by completing the decommissioning form and submitting it:

  • In person by visiting the City of Joondalup Administration Centre, 90 Boas Avenue, Joondalup.
  • By Post to the City at PO Box 21, Joondalup WA 6919.