9.9 Discharge from urban water system
The volumetric value for the line item for the 2010–11 year was 34,897 ML. The volume represents treated urban wastewater discharge to surface water within Australian Capital Territory and Murrumbidgee New South Wales surface water resource plan areas. Information from other urban water systems was not available. The line item value splits as follows:
Lower Molonglo Water Quality Control Centre: 32,243 ML
Queanbeyan Wastewater Treatment Plant: 2,654 ML
When there is storage capacity, water diverted from the rivers is treated at Mount Stromlo Water Treatment Plant and then transferred to Googong Reservoir via the water reticulation network. Transferred volume, 4,364 ML for 2010–11 is not included in the line item value because this volume has already been accounted in line item 9.4 Runoff to surface water.