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Canberra

                                                                                                   

20.1 Evaporation from water distribution system

                             

Supporting information   


This line item refers to the volume of water that was calculated as loss through evaporation at Lower Molonglo Water Quality Control Centre.

 

Quantification approach   


Data source

ActewAGL Water Data Warehouse.

 

Data provider

ActewAGL.

 

Method

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 Lower Molonglo Water Quality Control Centre (LMWQCC) was calculated as the inflow to the plant, less the discharge to surface water, less the supply to irrigation.

Losses from LMWQCC were calculated as shown in the following table.

 

Calculation

Component

Volume (ML)

 

Inflow LMWQCC

30,193

minus

Discharge to surface water

26,770

minus

Supply to irrigation

183

equals

Losses from LMWQCC

3240

 

 

Uncertainty

Ungraded.

 

Assumptions, approximations and caveats/limitations

  • Losses from Fyshwick and Queanbeyan wastewater treatment plants were not considered.