Sewerage System

Council's system system provides extensive wastewater services to urban areas of the shire. All new developments, except some rural properties, are required to connect to the system and majority of urban properties are connected.

The system consists of sewers, pumping stations and pump mains that transfer what’s predominately liquid waste to treatment works. From here, mechanical and biological processes are used to separate water (effluent), which makes up over 99% of sewerage, from the solids (sludge).

Part of the sludge is reused as a soil conditioner in Council’s landscape works while the remainder goes to sanitary landfill. Effluent that’s been treated to contain less than 0.002% solids is discharged into the ocean.

Council complies fully with all Environmental Protection Authority licenses and requirements and is committed to finding viable options for reusing both the sludge and the effluent.

Sewer and manholes

Our sewers have been designed to handle normal usage plus allowing for water during wet weather. If wet weather infiltration becomes excessive or there are illegal drainage connections, the sewer may overflow and possibly cause health and environmental concern.

There is an inspection program to detect illegal connections to the sewerage system and to identify maintenance needs. We also rely on community cooperation to maintain house service lines – which are the owners’ responsibility – and ensure that house stormwater drainage is not diverted into the sewers.

It’s essential that we has access to sewers for maintenance. This access is via manholes that are often located on private property. It’s important that owners do not cover manholes.

Manhole covers can be raised or lowered to suit property requirements. We may meet the cost of work if it’s not associated with development. There are special requirements for building near or over a manhole or sewer.

Sewer blockage

To help protect against overflows occurring inside a house, each property must have a gully trap. Make sure there aren’t any objects placed on these, as it will affect how well they work.

The house owner is responsible for sewer blockages between the sewer junction cut-in to the house. More information on your wastewater system is available under the 'Your Home' section of this website.

If there is a sewer overflow from a manhole or blockage in one of our sewer mains, please report this immediately on 4350 5555.

Pumping stations

Most sewerage is pumped through a pumping station before reaching a sewer treatment plant. There are a range of measures that have been put in place to make sure pumping stations don’t overflow. These include:

  • Dual pumps so if one fails the other takes over
  • Dual power supply or generator supply to overcome power failure
  • Holding capacity inside the well and sewer, allowing minor problems to be addressed
  • Connection to a telemetry system to give early warning of system malfunctions

Treatment plants

Sewer is treated at six treatment plants, each servicing its own local area. These are located at:

  • Toukley
  • Wyong South
  • Bateau Bay
  • Gwandalan
  • Charmhaven
  • Mannering Park

Related information

Your Wastewater System- a guide to maintenance and repairs
Wet Wipes