National Water Account 2015

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Region overview

Contextual information

Physical information

Administration

Water rights

Climate and water overview

Water Accounting Statements

Water Assets and Water Liabilities

Changes in Water Assets and Water Liabilities

Water Flows

Notes

Accounting policies

Supporting information

Quantification approach

Reconciliations

Water resources & systems

Water access & use

Future outlook

References

Accountability statement

Adelaide: Water resources and systems

Introduction

The following set of notes provides water accounting statements for each of the water stores and systems within the Adelaide region during the 2014–15 year. Information on all water flows to and from each water store and system are presented in this note, including between-store flows and transfers that are not presented in the consolidated water accounting statements (which are shown in italics).

For more information about the region, please refer to General description section in 'Contextual information'. For more information on between-store flows and transfers that occur in the region, please refer to the Supporting information note.

Surface water

Statement of Water Assets and Water Liabilities

The Statement of Water Assets and Water Liabilities presents the volume of water assets and water liabilities at the start and end of the reporting year.

Surface water assets of the region include physical water assets (e.g., storages and rivers) and rights or claims to water. Surface water liabilities include commitments to deliver water to users at the end of the year. The closing net water assets are the volume of surface water assets in the region minus the surface water liabilities at the end of the reporting year (Figure N19).

Figure N19 Surface water assets and surface water liabilities for the region at 30 June 2015

Detail on the region's surface water assets and surface water liabilities for the 2014–15 year is also provided in Table N20.

Statement of Changes in Water Assets and Water Liabilities

The Statement of Changes in Water Assets and Water Liabilities presents the changes in water assets and water liabilities that occurred during the reporting year.

This statement is prepared on an accrual basis. Figure N20 shows the transactions that change the surface water assets and surface water liabilities of the region, including:

• accrual (non-physical) transactions, indicated by the glass of water symbols
• actual water flows (both natural and engineered), indicated by the arrows.

Figure N20 Changes in surface water assets and surface water liabilities for the region during the 2014–15 year

Detail on the changes in surface water assets and surface water liabilities for the 2014–15 year is also provided in Table N21.

Statement of Water Flows

The Statement of Water Flows presents the actual water inflows and outflows associated with the water stores of the region that occurred during the reporting year.

Figure N21shows the actual surface water flows, including flows corresponding to the accrual transactions shown in Figure N20 above.

Figure N21 Surface water flows for the region during the 2014–15 year

Detail on the surface water flows for the 2014–15 year is also provided in Table N22.

Groundwater

Statement of Water Assets and Water Liabilities

The Statement of Water Assets and Water Liabilities presents the volume of water assets and water liabilities at the start and end of the reporting year.

Groundwater assets of the region include physical water assets (e.g., water table aquifer and underlying aquifers) and rights or claims to water. Groundwater liabilities include commitments to deliver water to users at the end of the year. The closing net water assets are the volume of groundwater assets in the region minus the groundwater liabilities at the end of the reporting year (Figure N22).

Figure N22 Groundwater assets and groundwater liabilities for the region at 30 June 2015

Detail on the region's groundwater assets and groundwater liabilities for the 2014–15 year is also provided in Table N23.

Statement of Changes in Water Assets and Water Liabilities

The Statement of Changes in Water Assets and Water Liabilities presents the changes in water assets and water liabilities that occurred during the reporting year.

This statement is prepared on an accrual basis. Figure N23 shows the transactions that change the groundwater assets and groundwater liabilities of the region, including:

• accrual (non-physical) transactions, indicated by the glass of water symbols
• actual water flows (both natural and engineered).

Figure N23 Changes in groundwater assets and groundwater liabilities for the region during the 2014–15 year

Detail on the changes in groundwater assets and groundwater liabilities for the 2014–15 year is also provided in Table N24.

Statement of Water Flows

The Statement of Water Flows presents the actual water inflows and outflows associated with the water stores of the region that occurred during the reporting year.

Figure N24 shows the actual groundwater flows, including flows corresponding to the accrual transactions shown in Figure N23 above.

Figure N24 Groundwater flows for the region during the 2014–15 year

Detail on the groundwater flows for the 2014–15 year is also provided in Table N25.

Urban water system

Statement of Water Assets and Water Liabilities

The Statement of Water Assets and Water Liabilities presents the volume of water assets and water liabilities at the start and end of the reporting year.

Urban water system assets of the region include physical water assets (e.g., water within the urban supply, wastewater, and recycled water systems) and rights or claims to water. The total net water assets are the sum of the physical water assets in the system and the water claims at the end of the reporting year (Figure N25).

Figure N25 Urban water assets and urban water claims for the region at 30 June 2015

Detail on the region's urban water systems assets and urban water claims for the 2014–15 year is also provided in Table N26.

Statement of Changes in Water Assets and Water Liabilities

The Statement of Changes in Water Assets and Water Liabilities presents the changes in water assets and water liabilities that occurred during the reporting year.

This statement is prepared on an accrual basis. Figure N26 shows the transactions that change the urban water system assets and urban water claims of the region, including:

• accrual (non-physical) transactions, indicated by the glass of water symbols
• actual water flows (both natural and engineered), indicated by the arrows.

Figure N26 Changes in urban water assets and urban water claims for the region during the 2014–15 year

Detail on the changes in water assets and surface water liabilities for the urban water system for the 2014–15 year is also provided in Table N27.

Statement of Water Flows

The Statement of Water Flows presents the actual water inflows and outflows associated with the water stores of the region that occurred during the reporting year.

Figure N27 shows the actual urban water system flows, including flows corresponding to the accrual transactions shown in Figure N26 above (red arrows).

Figure N27 Urban water flows for the region during the 2014–15 year

Detail on the urban water system flows for the 2014–15 year is also provided in Table N28.

Irrigation schemes

Statement of Water Assets and Water Liabilities

The Statement of Water Assets and Water Liabilities presents the volume of water assets and water liabilities at the start and end of the reporting year.

Irrigation scheme assets of the region include physical water assets (i.e., water within the supply system) and rights or claims to water. The total net water assets are the sum of the physical water assets in the system and the water claims at the end of the reporting year (Figure N28).

Figure N28 Irrigation water assets and irrigation water claims for the region at 30 June 2015

Detail on the region's urban water systems assets and urban water claims for the 2014–15 year is also provided in Table N29.

Statement of Changes in Water Assets and Water Liabilities

The Statement of Changes in Water Assets and Water Liabilities presents the changes in water assets and water liabilities that occurred during the reporting year.

This statement is prepared on an accrual basis. Figure N29 shows the transactions that change the irrigation scheme assets and irrigation water claims of the region, including:

• accrual (non-physical) transactions, indicated by the glass of water symbols
• actual water flows (both natural and engineered), indicated by the arrows.

Figure N29 Changes in irrigation water assets and irrigation water claims for the region during the 2014–15 year

Detail on the changes in irrigation scheme assets and irrigation water claims for the 2014–15 year is also provided in Table N30.

Statement of Water Flows

The Statement of Water Flows presents the actual water inflows and outflows associated with the water stores of the region that occurred during the reporting year.

Figure N30 shows the actual irrigation scheme flows, including flows corresponding to the accrual transactions shown in Figure N29 above.

Figure N30 Irrigation water flows for the region during the 2014–15 year

Detail on the irrigation scheme flows for the 2014–15 year is also provided in Table N31.