42.5 Releases from storages

Supporting Information

The volume reported for releases from storages was 59,879 ML. This volume represents the total volume released from Mt Bold Reservoir to the Onkaparinga River. Releases from Mount Bold Reservoir may service downstream diversions to the urban water supply system at Clarendon Weir.

Releases from other surface water storages were not quantified as these data were not available.

Quantification Approach

Data Source

SA Water: readings may be from either the Supervisory Control and Data Acquisition (SCADA) database or manual field instrument readings, stored in the MetDaily file.

Provided by

SA Water.


The volume of water released from surface water storages in the 2010–11 year was obtained from SA Water's SCADA database and/or MetDaily file.

Assumptions, Limitations, Caveats and Approximations


Uncertainty Information

This is a metered volume. It has an estimate of +/– 10% due to meter calibration.