Canberra
19.1 Evaporation from urban water

This line item refers to the volume of water that was calculated as loss through evaporation at the Lower Molonglo Water Quality Control Centre (LMWQCC), Fyshwick Wastewater Treatment Plant and the Queanbeyan Wastewater Treatment Plant. The total volume reported in the 2011 Account was 4,353 ML.

Reported volume is measured data retrieved from the ActewAGL Water Data Warehouse. The calculated volume of water lost through evaporation in the treatment process at the LMWQCC and Fyshwick Wastewater Treatment Plant was calculated as the inflow to the plants, less the discharge to surface water, less the volume of recycled water.

The calculated volume of evaporation and other system losses at the Queanbeyan Wastewater Treatment Plant was 1,313 ML. Evaporation was measured from four lagoons, two sludge lagoons and other smaller open water bodies such as aeration tanks. The moisture content of sludge was not included.

Nil

The uncertainty estimate was not quantified.

This line item corresponds to line item 20.1 Evaporation from water distribution system reported in the 2010 Account.