Perth
19.20 Other urban water decreases

Supporting Information

This line item refers to the treated wastewater used for on-site use, local industry and local irrigation (e.g. parks and recreation grounds).

Total volume of treated wastewater recycled for further use from each treatment plant during the 2010–11 year is given in the following table.

 

Volume of treated wastewater recycled for further use from each treatment plant during the 2010–11 year

Wastewater treatment plant

Recycled

(ML)

Use

Perth city area

 

 

Beenyup

1,346

On-site use

Kwinana Reclamation Scheme

3,725

Local industry

Mundaring

12

Local irrigation

Subiaco

1,109

On site use and local irrigation

Woodman Point

742

On-site use

Southwest area

 

 

Gordon Road (Mandurah)

62

On-site use

Halls Head

8

Local irrigation

Pinjarra

195

Local industry

Other

 

 

Boddington

15

Local industry

Wundowie

20

Local irrigation

Total recycled

7,234

 

 

During the 2010–11 year, the volume of treated wastewater recycled for further use was equivalent to approximately 6% of the total treated wastewater discharged from treatment plants within the region.

Quantification Approach

Data Source

Water Corporation: Operational Data Storage System.

Provided by

Water Corporation.

Method

The volume of wastewater recycled for further use is based on measured discharge data collected by flow meters installed at the wastewater treatment plant.

Assumptions, Limitations, Caveats and Approximations

Nil.

Uncertainty Information

This value is estimated to be in the range of +/– 5–10%.

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 19.20

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

19.20 Other urban water decreases

20.5.3 Other lumped recycled water discharge

6,441

6,441

Change in line item name and number