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Gosford Wyong water supply

Approximately 285,000 people on the Central Coast are supplied with water from Gosford/Wyong Council’s Water Authority, and for more than three years the area has experienced drought conditions. Water restrictions have been implemented and storages have continued to be depleted.

Due to the drought conditions and the low storages, discussions were initiated by Gosford/Wyong Councils with Hunter Water Corporation, which resulted in a plan to meet the needs in a four stage project.

 

What is happening

The work involves gradually increasing Hunter Water’s ability to transfer water to Gosford/Wyong – the four stages involve:

  • Stage 1 Meeting immediate needs by re-establishing an existing small link between the two neighbouring water systems to transfer an average of two megalitres per day. (The link was re-established by June 2004 at negligible cost.)
  • Stage 2 Upgrading Hunter Water’s system to allow the transfer of an average of six megalitres per day. The upgrade was completed in January 2005 and involved building four pipelines in the vicinity of Morisset and Wyee Point and the construction of the Morisset water pumping station and Fishery Point trunk main. The value of the work was approximately $1.7 million.
  • Stage 3 Upgrading both Hunter Water and Wyong Council’s system to allow the transfer of an average of 27 megalitres per day. The works involved the construction of approximately 25 kilometres of pipelines and two new water pumping stations at an estimated cost of approximately $35 million. The upgrade work was completed on time in December 2006. A secondary outcome is a longer term capability to potentially transfer flows from Gosford/Wyong to Hunter Water or vice versa depending upon each region’s needs and water storage levels.
  • Stage 4 Upgrading Hunter Water’s system to allow the transfer of an average of 35 megalitres per day. The upgrade work involves constructing various sections of large diameter pipeline (totalling approximately 7 kilometres) at Rathmines, Fennell Bay, Teralba and Boolaroo. The estimated cost for this work is approximately $10million and is expected to be completed by November 2007.