Ord
9.9 Discharge from urban water system

Supporting information

The volume recognised in the water accounting statements (686 ML) represents the total discharge of wastewater from Wyndham Wastewater Treatment Plant to the King River and from Kununurra Wastewater Treatment Plant to the M1 Channel during the 2011–12 year.

Total volume of wastewater discharged to surface water from each treatment plant is provided in the following table.


Volume of wastewater discharged to surface water from each wastewater treatment plant during the 2011–12 year

Source of Wastewater

Volume (ML)

Kununura Wastewater Treatment Plant

623

Wyndham Wastewater Treatment Plant

63

Total

686

 

Quantification approach

Data source

Operational Data Storage System database.

Provided by

Water Corporation.

Method

The volume of treated wastewater is based on measured discharge data collected by flow meters installed at the treatment plants.

Assumptions, limitations, caveats and approximations

Nil.

Uncertainty information

Derived from measured data. Uncertainty range +/– 10%.