12.4 Discharge from urban water system to irrigation scheme

Supporting information

The volume (21,586 ML) reported is the volume of recycled water supplied from SA Water's wastewater treatment plants (WWTP) to irrigation schemes within the Adelaide region during the 2012–13 year. The following table details the volume supplied from each WWTP to the respective irrigation scheme. 

Recycled water supplied to the irrigation scheme during the 2012–13 year
WWTP Irrigation scheme Volume (ML) 
Bolivar Virginia Pipeline Scheme 18,247
Christies Beach Willunga Basin Water Company 2,939
Aldinga Willunga Basin Water Company 400
Total 21,586

 Barossa Infrastructure Limited does not receive recycled water from Adelaide's urban water system.

Quantification approach

Data source

WWTP records and Supervisory Control and Data Acquisition database (SCADA).

Provided by

SA Water.


The metered volume of recycled water transferred from Bolivar, Christies Beach and Aldinga WWTPs to the irrigation scheme was obtained from SA Water's WWTP records. Metered flows are either automatically logged by SCADA or manually read and recorded by plant operators.

Assumptions, limitations, caveats and approximations

The volume reported does not include any recycled water supplied from community waste management systems managed by local councils.

Uncertainty information

Uncertainty is +/– 10% based on meter calibrations.