Perth

Physical Water Flow

	Data Type	2010 ML
Water inflows
Connected surface water inflows		1,239,241
13.1 Precipitation on connected surface water	Modelled	28,360
13.2 Connected surface water flow from outside region		-
13.3 Groundwater discharge to connected surface water	Modelled	220,149
13.4 Landscape water drain to connected surface water
13.4.1 Rainfall-runoff to connected surface water	Estimated	942,097
13.4.2 Diffuse return of irrigation water to connected surface water		-
13.4.3 Point return of irrigation water to connected surface water		-
13.5 Overbank flood return to river channel		-
13.6 Delivery of water transferred-in to connected surface water
13.6.2 Delivery of traded-in water to connected surface water	Measured	1,500
13.6.5 Other lumped delivery of water transferred-in to connected surface water	Measured	1,902
13.8 Other lumped surface water increases	Measured	45,233
Total Connected surface water inflows		1,239,241

Groundwater inflows		1,800,124
15.1 Groundwater inflow from outside region
15.1.1 Regional groundwater inflow	Modelled	117,485
15.1.2 Seawater intrusion into aquifers	Modelled	0
15.2 Groundwater recharge
15.2.1 Diffuse groundwater recharge from landscape water	Modelled	1,666,283
15.2.2 Groundwater recharge from connected surface water	Modelled	0
15.2.4 Leakage from water distribution system to groundwater	Estimated	14,881
15.2.6 Managed aquifer recharge	Measured	1,475
Total Groundwater inflows		1,800,124

Water distribution system inflows		356,009
19.5 Delivery of water transferred-in to water distribution system
19.5.1 Delivery of desalinated water transferred-in to urban water supply system	Measured	47,693
19.8 Allocation diversion into the urban water supply system
19.8.5 Allocation diversion of regulated flows—urban holder	Measured	141,276
19.8.7 Groundwater allocation extraction—urban holder	Measured	120,828
19.8.8 Allocation diversion into the urban water supply system—other lumped	Estimated	46,212
Total Water distribution system inflows		356,009

Total water inflows		3,395,374
Water outflows
Connected surface water outflows		1,103,099
14.1 Evaporation from connected surface water	Modelled	77,888
14.2 Surface water flow out of region	Estimated	769,234
14.3 Leakage from connected surface water store
14.3.1 Groundwater recharge from connected surface water	Modelled	0
14.3.2 Leakage from connected surface water to landscape	Measured	158
14.7 Allocation diversion of regulated surface water flows
14.7.2 Allocation diversion of regulated flows—high security water access entitlement
14.7.2.1 Allocation diversion of regulated flows—high security, bulk irrigator holder	Measured	45,560
14.7.2.4 Allocation diversion of regulated flows—high security, urban holder	Measured	141,276
14.7.9 Allocation diversion of regulated flows—other lumped water access entitlement
14.7.9.7 Allocation diversion of regulated flows—other lumped holders	Estimated	42,325
14.10 Other lumped surface water decreases	Measured	26,658
Total Connected surface water outflows		1,103,099

Groundwater outflows		1,812,521
16.1 Groundwater outflow out of region
16.1.1 Regional groundwater outflow	Modelled	94,688
16.1.2 Groundwater discharge into sea	Modelled	339,441
16.2 Evaporation from groundwater		-
16.3 Groundwater discharge
16.3.1 Groundwater discharge to landscape	Modelled	665,560
16.3.2 Groundwater discharge to connected surface water	Modelled	220,149
16.4 Groundwater extraction under other statutory right
16.4.2 Groundwater extraction—other lumped basic rights	Estimated	76,721
16.5 Groundwater allocation extraction
16.5.3 Groundwater allocation extraction—other lumped water access entitlement
16.5.3.1 Groundwater allocation extraction—bulk irrigator holder	Estimated	652
16.5.3.4 Groundwater allocation extraction—urban holder	Measured	120,828
16.5.3.7 Groundwater allocation extraction—other lumped holders	Estimated	294,482
Total Groundwater outflows		1,812,521

Water distribution system outflows		323,839
20.2 Leakages from water distribution system
20.2.2 Leakage from water distribution system to groundwater	Estimated	14,881
20.3 Irrigation water application from water distribution system
20.3.1 Application of water from Irrigation water supply system for irrigation	Estimated	41,740
20.3.2 Application of water from urban water supply system and recycled water supply system for irrigation or outdoor use	Estimated	96,312
20.4 Wastewater discharge
20.4.2 Wastewater discharge out of region	Measured	116,507
20.4.3 Other lumped wastewater discharge	Measured	4,608
20.5 Recycled water discharge
20.5.2 Managed Aquifer Recharge	Measured	1,475
20.5.3 Other lumped recycled water discharge	Measured	6,441
20.7 Other lumped water distribution system decreases	Measured	41,875
Total Water distribution system outflows		323,839

Total water outflows		3,239,459
Unaccounted-for difference		125,812
30.2 Unaccounted-for difference—connected surface water store		106,039
30.3 Unaccounted-for difference—groundwater store		(12,397)
30.5 Unaccounted-for difference—water distribution system store		32,170
Total Unaccounted-for difference		125,812

Change in water storage		30,103
Opening water storage		231,087
Add: Change in water storage		30,103
Closing water storage		261,190
	Data Type	2010 ML

Perth

Physical Water Flow

Water inflows

Connected surface water inflows

Groundwater inflows

Water distribution system inflows

Total water inflows

3,395,374

Water outflows

Connected surface water outflows

Groundwater outflows

Water distribution system outflows

Total water outflows

3,239,459

Unaccounted-for difference

Change in water storage

30,103

Opening water storage

Closing water storage

261,190