20.3 Leakage to groundwater

Supporting information

The volume reported in the water accounting statement (0 ML) represents background leakage from the pipes in the irrigation water supply system to groundwater during the 2012–13 year.

Barossa Infrastructure Limited (BIL) reported leakages in the irrigation scheme had been eliminated following completion of the installation of electronic meters and pressure sensors in the 2012–13 year (BIL 2013).

Data regarding leakage were not available for the Virginia Pipeline Scheme. This volume is assumed to be small, and its omission is unlikely to have a material impact on the irrigation scheme balance.

Leakage from the Willunga Water Basin Company pipes was assumed to be negligible. Numerous pressure monitoring sites are able to rapidly identify leaks and leaks are fixed quickly.