Adelaide
11.4 Wastewater collected

Supporting Information

This volume reported (92,024 ML) represents wastewater inflow into the Adelaide region's wastewater treatment plants (WWTPs). This volume included increases from wastewater discharge to sewer by consumers and any groundwater or stormwater ingress into the system.

Inflow into Adelaide's waste water treatment plants in 2010–11

Wastewater treatment plant

Metered inflow (ML)

Aldinga

555

Angaston

166
Bird-in-Hand 421

Bolivar 

52,704

Bolivar High Salinity

8,714

Christies Beach

9,761

Glenelg 

17,561

Gumeracha

50

Hahndorf

358

Heathfield

749

Myponga 

41

Victor Harbor

944

Total

92,024

Quantification Approach

Data Source

SA Water: WWTP records.

Provided by

SA Water.

Method

The metered inflow to each WWTP within the Adelaide region was supplied from WWTP records held by SA Water. Most metered flows were manually read and recorded by plant operators. Inflows for each WWTP were aggregated.

Assumptions, Limitations, Caveats and Approximations

  • This does not include wastewater collected for individual community wastewater management systems.
  • This includes wastewater collected from outside of the Adelaide region and delivered to the Bird-in-Hand WWTP. Data on the breakdown between wastewater collected within and outside the region were not available. However, the volume from outside the region is assumed to be negligible.

Uncertainty Information

This volume is metered. The uncertainty is estimated to be +/– 10%.

Comparative year

This line item was not reported in the 2010 Account. In the 2010 Account, the urban users were included in the regions definition. In the Account 2011, the urban users were excluded from the regions definition. This change was made to allow reporting, in the water accounting statements, on urban water use (as a water asset decrease) and wastewater collection (as a water asset increase), as both were considered useful information to the National Water Account users. The restated comparative year volume is 87,771 ML.