Adelaide
1.1 Storages

Supporting information

The volume reported (87,330 ML) represents the total volume of water held in surface water storages within the Adelaide region at 30 June 2013. These storages are operated by SA Water and are used for urban water supply.

The surface water storage volume of each storage at 30 June 2012 and 30 June 2013, total storage capacity and dead storage are provided in the following table. 

Surface water storage volume in the Adelaide region at the end of the 2012–13 and 2011–12 years

Surface water storage

Total storage capacity (ML)

Dead storage capacity (ML)

Storage volume at 30 June 2013 (ML)

Storage volume at 30 June 2012 (ML)

Barossa Reservoir

4,510

19

4,139

3,992

Happy Valley Reservoir

11,600

71

9,017

8,924

Hope Valley Reservoir

2,764

123

2,181

2,257

Kangaroo Creek Reservoir

19,000

300

5,372

5,544

Little Para Reservoir

20,800

188

6,989

4,600

Millbrook Reservoir

16,500

188

8,882

9,976

Mount Bold Reservoir

45,900

27

9,431

11,496

Myponga Reservoir

26,800

163

21,982

21,363

Onkaparinga Summit Reservoir

427

64

64

64

South Para Reservoir

44,800

310

15,409

26,157

Warren Reservoir

4,770

22

3,864

2,809

Total

197,871

1,475

87,330

97,182

Quantification approach

Data source

Australian Water Resources Information System—Water storages.

Provided by

Bureau of Meteorology.

Method

Surface water storage volume was measured using gauged water level height(s) in metres with respect to the Australian height datum for individual storages. The height measurement was converted to a volume using the storage-volume relationship(s) provided by SA Water. The storage volume of individual surface water storages was aggregated to present the total volume for this line item.

Assumptions, limitations, caveats and approximations

  • Storage-volume relationships were derived from surveys of specific parts of the surface water storage, and may not reflect the storage-volume relationship across the entire storage. 
  • Surface water storages are subject to sedimentation and other physical changes over time that in turn may affect the accuracy of the storage-volume relationships.

Uncertainty information

The uncertainty estimate was not quantified.