Regional Information- Water Recycling

The recycled water on the Central Coast comes from treated sewage effluent in accordance with NSW Health and National Reuse Guidelines.  Recycling of water is already a key component of Gosford City and Wyong Shire Councils management of the region's water resources.  Approximately eight million litres of recycled water is currently available for use around the Central Coast every day.  Much of this is generated at major plants built at Toukley and Bateau Bay with smaller plants at Woy Woy, Kincumber, Tuggerah, Charmhaven, Mannering Park and Gwandalan.

Figure 1:  A Reclaimed Water Plant at Bateau Bay Sewage Treatment Plant (Source: Wyong Shire Council)

The water is currently used to irrigate golf courses, bowling greens, ovals, caravan parks and cemeteries.  It is also used for toilet flushing in public amenity blocks and caravan parks.  The Councils use recycled water internally within each sewage treatment plant and for road construction purposes and landscape irrigation.

Plans are also in place to expand the use of recycled water by:

  • Increasing the capacity at Bateau Bay and Toukley
  • Supplying recycled water to local sports fields, industrial areas and schools in Kincumber
  • Supplying highly treated recycled water to businesses and commercial outlets in the Gosford central business district.

Recycling is very effective at reducing stress on urban streams and rivers by capturing some of the water and nutrients that would otherwise be discharged from sewage treatment plants and stormwater drains.  In the last ten years the amount of water recycled in Sydney has more than doubled.  As part of the 2006 Metropolitan Water Plan, the NSW Government is pursuing recycling wherever it is feasible and practical which will increase the current level of recycling up to 70 billion litres, a year in 2015.

Sydney has Australia’s largest residential recycling scheme at Rouse Hill.  In addition to this, homes are also being serviced by dual reticulation at Homebush Bay and two new schemes are under construction at Hoxton Park and Ropes Crossing at St Marys.  As part of the 2006 Metropolitan Water Plan, the Western Sydney Recycled Water Initiative will also provide recycled water via dual reticulation to all 160,000 new homes in western Sydney's new suburbs, as well as for agriculture, industry and putting water back into rivers.