Perth
10.9 Managed aquifer recharge - urban water system

Supporting Information

Treated wastewater from the Beenyup Wastewater Treatment Plant was transferred to the groundwater store via an injection well as part of the Groundwater Replenishment Trial that commenced in November 2010.

Quantification Approach

Data Source

Water Corporation: Operational Data Storage System.

Provided by

Water Corporation.

Method

Treated wastewater from the Beenyup Wastewater Treatment Plant was transferred to the Advanced Water Recycling Plant where it underwent further treatment. The treated wastewater was then transferred into the groundwater store via an injection well. The volume of aquifer recharge is based on metered data at the recycling plant, which is collected on an almost continuous basis.

Assumptions, Limitations, Caveats and Approximations

Nil.

Uncertainty Information

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

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

Comparative year

The following table presents substantive changes in the line item reported in this 2011 Account with the corresponding line item in the 2010 Account.

 

Comparative year information for line item 10.9

2011 Account line item

2010 Account line item

2011 Account volume for the 2009–10 year (ML)

2010 Account volume for the 2009–10 year (ML)

Change from the 2010 Account to the 2011 Account

10.9 Managed aquifer recharge - urban water system

15.2.6 Managed aquifer recharge

0

0

Change in line item name and number