South East Queensland
19.4 Delivery to urban water system users

This line item consists of all potable, non-potable and recycled water delivered to consumers within the South East Queensland (SEQ) region by the urban water supply system and the recycled water supply system. This includes residential, commercial, industrial, municipal and other consumers. It includes both consumers supplied by urban utilities as part of the SEQ Water Grid and also consumers supplied off-grid.

Potable, non-potable and recycled water delivered to consumers

Type of water	Water usage	Urban utility, SEQ Water Grid or recycled water supply scheme	Volume (ML)
Potable	Residential	SEQ Water Grid	131,117
		Off-grid	5,220
	Commercial, industrial and municipal	SEQ Water Grid	53,229
		Off-grid	2,119
	Other including agriculture	SEQ Water Grid	2,993
		Off-grid	119
Non-potable	Residential		–
	Commercial, industrial and municipal		–
	Agriculture		–
Recycled	Residential	Allconnex Water	202
		Queensland Urban Utilities	0
		Unitywater	31
	Commercial, industrial and municipal	Allconnex Water	9,361
		Queensland Urban Utilities	5,264
		Unitywater	1,576
		Western Corridor Recycled Water Scheme (Swanbank)	4,472
	Agriculture	Allconnex Water	673
		Queensland Urban Utilities	–
		Unitywater	–
Total SEQ region			216,376

Notes:

1. Where data were not available this has been indicated with (–).
   

Queensland Water Commission (QWC) WaterHub Database potable consumption records. Qldwater Statewide Water Information Management (SWIM) system indicator WA20 (residential recycled water use), WA21 (commercial, industrial and municipal recycled water use) and WA22 (agricultural use) for Queensland Urban Utilities and Unitywater recycled water data. Allconnex Water database of recycled water data. SEQ Water Grid Manager WaterHub Database (meter M-0910MW).

Bureau of Meteorology.

Potable water consumption

QWC provided residential, commercial/industrial/municipal and other metered potable water consumption data for the SEQ Water Grid. Off-grid consumption was assumed to be equal to the off-grid diversions provided in line item 11.2 Non-allocated diversion of surface water. The off-grid consumption was divided into the land use categories using the consumption percentage obtained from the SEQ Water Grid data.

Recycled water consumption

Qld SWIM system data were used to estimate residential, commercial/industrial/municipal and agricultural consumption data for Queensland Urban Utilities and Unitywater. Only consumption within the Caboolture, Pine Rivers and Redcliffe Council areas was included for Unitywater.

Allconnex Water provided recycled water consumption for the same land use categories.

SEQ Water Grid Manager provided the metered volume of recycled water provided to the Swanbank Power Station via the Western Corridor Recycled Water Scheme.

Data on non-potable water consumption were not available. If non-potable water is provided by urban utilities to consumers, this volume would be minor in comparison to the potable water supplied.

Moreton Bay Regional Council incorporates the previous councils of Caboolture, Pine Rivers and Redcliffe. The council's boundary does not match the South East Queensland (SEQ) region boundary exactly and as such a slight overestimate of the recycled water consumption within the region may have occurred.

The uncertainty estimate was not quantified.

This line item corresponds partly to line item 20.5.3 Other lumped recycled water discharge reported in the 2010 Account. In the 2010 Account, potable water use was not included within the water accounting statements, but was included within the urban water notes. A change of accounting framework in the 2011 Account has resulted in the inclusion of potable, non-potable and recycled water use within line item 19.4 Delivery to urban water system users.

The following table compares the value at 30 June 2010 reported in the 2011 Account with the corresponding value reported in the 2010 Account.

Comparative year information – line item 19.4 Delivery to urban water system users

2011 Account line item	2010 Account line item	Component	Volume reported in the 2010 Account (ML)	Prior period error correction (ML)	Volume difference due to scope change (ML)	Restated volume reported in the 2011 Account (ML)	Additional information
19.4 Delivery to urban water system users	Line item 20.5.3 Other lumped recycled water discharge		6,594	0	0	6,594	No change
	Urban water note	Potable – residential	–	0	168,190	168,190	Volumes included in urban water note, not in the water accounting statements
		Potable – commercial, industrial, municipal	–	0	42,204	42,204
		Potable – other	–	0	5,705	5,705
		Non-potable – residential	–	0	0	–
		Non-potable – commercial, industrial, municipal	–	0	0	-–
		Non-potable – other including agriculture	–	0	0	–
	Total		6,594	0	216,099	222,693

Notes:

1. Where data were not available this has been indicated with (–).