Melbourne

Physical Water Flow

	Data Type	2010 ML
Water inflows
Connected surface water inflows		1,147,200
13.1 Precipitation on connected surface water	Modelled	31,557
13.3 Groundwater discharge to connected surface water		-
13.4 Landscape water drain to connected surface water
13.4.1 Rainfall runoff to connected surface water	Estimated	1,005,902
13.4.2 Diffuse return of irrigation water to connected surface water		-
13.4.3 Point return of irrigation water to connected surface water	Estimated	36
13.5 Overbank flood return to river channel	Other	0
13.6 Delivery of water transferred-in to connected surface water
13.6.1 Delivery of desalinated water transferred-in to connected surface water	Other	0
13.6.3 Delivery of water transferred-in under inter-basin agreement to connected surface water	Measured	84,443
13.7 Discharge of wastewater and recycled water into connected surface water
13.7.1 Discharge of urban wastewater to connected surface water	Measured	8,063
13.7.2 Urban recycled water discharge to connected surface water	Measured	17,199
13.7.3 Discharge after use of water diverted by industries		-
Total 13 Connected surface water inflows		1,147,200

Groundwater inflows		162,466
15.1 Groundwater inflow from outside region		-
15.2 Groundwater recharge
15.2.1 Diffuse groundwater recharge from landscape water	Modelled	143,063
15.2.2 Groundwater recharge from connected surface water		-
15.2.4 Leakage from water distribution system to groundwater	Estimated	19,403
Total 15 Groundwater inflows		162,466

Water distribution system inflows		360,948
19.1 Precipitation on water distribution system		-
19.2 Unregulated water inflow into the irrigation supply system		-
19.3 Unregulated water inflow into the urban water supply system		-
19.4 Discharge into the urban wastewater system of individually-taken water		-
19.5 Delivery of water transferred-in to water distribution system		-
19.6 Water inflow into the urban wastewater system		-
19.8 Allocation diversion into the urban water supply system
19.8.4 Allocation/claim diversion of regulated flows–urban water access entitlement/arrangement	Measured	360,816
19.8.6 Groundwater allocation extraction – urban water access entitlement	Measured	132
Total 19 Water distribution system inflows		360,948

Total water inflows		1,670,614
Water outflows
Connected surface water outflows		853,423
14.1 Evaporation from connected surface water	Modelled	44,289
14.2 Surface water flow out of region	Estimated	418,938
14.3 Leakage from connected surface water store		-
14.5 Surface water diversion under other statutory right
14.5.1 Surface water diversion – riparian right		-
14.6 Entitled diversion of unregulated surface water flows
14.6.1 Diversion of unregulated flows – S&D water access entitlement	Estimated	1,007
14.6.5 Diversion of unregulated flows – other lumped class
14.6.5.6 Diversion of unregulated flows – other lumped holders	Measured	24,738
14.7 Allocation diversion of regulated surface water flows
14.7.2 Allocation diversion of regulated flows – high security water access entitlement
14.7.2.2 Allocation diversion of regulated flows – high security, individual irrigator holder	Measured	2,553
14.7.4 Allocation/claim diversion of regulated flows – urban water access entitlement/arrangement	Other	360,816
14.7.7 Allocation diversion of regulated flows – environment water access entitlement	Other	0
14.7.9 Allocation diversion of regulated flows – other lumped water access entitlement
14.7.9.6 Allocation diversion of regulated flows – environmental purpose	Measured	401
14.9 Diversion of surface water for transfer-out under Inter-basin agreement	Measured	681
Total 14 Connected surface water outflows		853,423

Groundwater outflows		63,158
16.1 Groundwater outflow out of region
16.1.1 Regional groundwater outflow		-
16.1.2 Groundwater discharge into sea	Modelled	24,018
16.2 Evaporation from groundwater		-
16.3 Groundwater discharge
16.3.1 Groundwater discharge to landscape		-
16.3.2 Groundwater discharge to connected surface water		-
16.3.5 Infiltration of groundwater into urban wastewater system		-
16.4 Groundwater extraction under other statutory right
16.4.2 Groundwater extraction – other lumped basic rights	Estimated	20,545
16.5 Groundwater allocation extraction
16.5.1 Groundwater allocation extraction – S&D water access entitlement	Estimated	9,384
16.5.2 Groundwater allocation extraction – urban water access entitlement	Estimated	132
16.5.3 Groundwater allocation extraction – other lumped water access entitlement
16.5.3.7 Groundwater allocation extraction – other lumped holders	Measured	9,079
Total 16 Groundwater outflows		63,158

Water distribution system outflows		280,655
20.2 Leakages from water distribution system
20.2.1 Leakage from water distribution system to landscape	Estimated	8,760
20.2.2 Leakage from water distribution system to groundwater	Estimated	19,403
20.2.3 Discharge from on-site wastewater treatment systems of water supplied via urban water distribution system		-
20.3 Irrigation water application from water distribution system
20.3.1 Application of water from irrigation water supply system for irrigation	Measured	18,296
20.3.2 Application of water from urban water supply system and recycled water supply system for irrigation or outdoor use		-
20.4 Wastewater discharge
20.4.1 Discharge of urban wastewater to connected surface water	Measured	8,063
20.4.2 Wastewater discharge out of region	Measured	208,934
20.5 Recycled water discharge
20.5.1 Urban recycled water discharge to connected surface water	Measured	17,199
20.6 Water transferred-out
20.6.3 Volume of potable water export		-
20.6.4 Volume of non-potable water export		-
Total 20 Water distribution system outflows		280,655

Total water outflows		1,197,236
Unaccounted-for difference		394,070
30.2 Unaccounted-for difference – connected surface water store		214,966
30.3 Unaccounted-for difference – groundwater store		99,308
30.5 Unaccounted-for difference – water distribution system store		79,796
Total 30 Unaccounted-for difference		394,070

Change in water storage		79,308
Opening water storage		366,081
Add: Change in water storage		79,308
Closing water storage		445,389
	Data Type	2010 ML

National Water Account 2010

Melbourne

Physical Water Flow

Water inflows

Connected surface water inflows

Groundwater inflows

Water distribution system inflows

Total water inflows

1,670,614

Water outflows

Connected surface water outflows

Groundwater outflows

Water distribution system outflows

Total water outflows

1,197,236

Unaccounted-for difference

Change in water storage

79,308

Opening water storage

Closing water storage

445,389