Derwent Estuary Recycling and Irrigation Scheme


On 21 September 2015, responsibility for water policy and resources was transferred to the Department of Agriculture and Water Resources - Administrative Arrangement Order made on 21 September 2015.

This website will be updated to reflect these changes.

Clarence, Tasmania

Total funding: Total project costs of $10.5 million fully funded by the Australian Government under the National Water Security Plan for Cities and Towns.

About the project

This project is the expansion of Stage One of the Clarence Recycled Water Scheme. The expansion activities include construction of a 900 million litre buffer storage dam, a pipeline connecting the storage to the existing Clarence Recycling Scheme and a pipeline connection for the Rokeby Wastewater Treatment Plant. The re-use water will be used in the Coal River district for horticulture and agricultural production.

Project benefits

This project will:

  • allow full utilisation of 3.2 billion litres each year of treated effluent for reuse that would otherwise be released into the Derwent Estuary, and
  • provide local irrigators with access to additional recycled water for agricultural production purposes.


The project commenced on 5 November 2008 and is scheduled for completion by the 30 June 2012.