DEECA Victorian Water Accounts 2021-22

About the area

The Colac system sources water from Olangolah and West Gellibrand reservoirs, which are fed by streams in the Otway Ranges.

Colac has a water treatment plant producing potable water supply for urban use.

This system is supplied by Barwon Water.

The table below shows the total volumes of water supplied from water resources in the Colac system in 2021-22.

Water account component	2021-22 (ML)	2020-21 (ML)
Volume in store
Start volume in store	620	614
End volume in store	617	620
Change in store	(3)	6
Inflows
Inflow from surface water	3,491	3,494
Inflow from groundwater	0	0
Inflow from distribution system	0	0
Inflow from recycled water	0	0
Inflow from rainfall	0	0
Unattributed inflows	0	0
Total inflows	3,491	3,494
Outflows
Deliveries
Urban residential	1,444	1,378
Urban non-residential	1,349	1,266
Passed to other systems	0	0
Total deliveries	2,793	2,644
Losses
Evaporation	0	0
System losses	356	844
Total losses	356	844
Other outflows
Unattributed outflows	345	0
Total outflows	3,494	3,488
System efficiency
Distribution system efficiency (%)	80%	76%

Water account component	2021-22 (ML)	2020-21 (ML)
Volume in store
Start volume in store	620	614
End volume in store	617	620
Change in store	(3)	6
Inflows
Inflow from surface water	3,491	3,494
Inflow from groundwater	0	0
Inflow from distribution system	0	0
Inflow from recycled water	0	0
Inflow from rainfall	0	0
Unattributed inflows	0	0
Total inflows	3,491	3,494
Outflows
Deliveries
Urban residential	1,444	1,378
Urban non-residential	1,349	1,266
Passed to other systems	0	0
Total deliveries	2,793	2,644
Losses
Evaporation	0	0
System losses	356	844
Total losses	356	844
Other outflows
Unattributed outflows	345	0
Total outflows	3,494	3,488
System efficiency
Distribution system efficiency (%)	80%	76%

Explore the Barwon Water Corporation local report.