10.9 Managed aquifer recharge – urban water system

Supporting information

This line item volume (1,203 ML) represents the total volume of recycled water recharged to the Leederville aquifer during the 2012–13 year as part of the groundwater replenishment trial.

More information on the groundwater replenishment trial is provided on the Water Corporation website.

Quantification approach

Data source

Operational Data Storage System.

Provided by

Water Corporation.


Treated wastewater from the Beenyup Wastewater Treatment Plant is transferred to the Advanced Water Recycling Plant where it undergoes further treatment to produce water that meets Australian guidelines for drinking water. This treated wastewater is then recharged to the Leederville aquifer. The volume of aquifer recharge is based on metered data at the recycling plant that is collected on an almost continuous basis.

Assumptions, limitations, caveats and approximations


Uncertainty information

Expected error for water meters is +/– 5%.

The Department of Water requires that all water meters, when tested under in situ conditions, must be within 5% accuracy across the full flow rate range (Department of Water 2009c).