Australian Water Information Dictionary

Alphabetical list of items

A   B   C   D   E   F   G   H   I   K   L   M   N   O   P   Q   R   S   T   U   V   W   Y   Z   other  

All items

/

% full

There are multiple contexts for this item

Context 1

The volume of water in storage as a percentage of the accessible storage capacity. Note that the percentage full may exceed 100% due to floods for example.

Related: accessible storage capacity

Synonym: percentage full

This definition applies to:

Context 2

The total volume of water in storage as a percentage of the total storage capacity. Note that the percentage full may exceed 100% due to floods for example.

This definition applies to:

25% quartile

The 25% quartile of a set of numbers is the value in which 25% of the numbers are below it and 75% of the numbers are above it when the numbers are arranged in ascending (increasing) order.

Synonym: first quartile

This definition applies to:

75% quartile

The 75% quartile of a set of numbers is the value in which 75% of the numbers are below it and 25% of the numbers are above it when the numbers are arranged in ascending (increasing) order.

Synonym: third quartile

This definition applies to:

Aboriginal water

Water resources of an area that are recognised or used by aboriginal peoples for their social, spiritual and cultural values.

Source: Modified from National Water Accounts, viewed 25 July 2015.

Related: cultural basic right

This definition applies to:

abstraction

The removal of water from a water store.

This definition applies to:

accessible storage capacity

There are multiple contexts for this item

Context 1

The volume of water that a water storage can hold between the minimum supply level and full supply level; equal to the total storage capacity excluding the dead storage capacity. It is the sum of this capacity that is reported for a collection of water storages. See the water storage diagram for more information.

Related:

Synonym: capacity

This definition applies to:

Context 2

The volume of water that a water storage can hold between the minimum supply level and full supply level; equal to the total storage capacity excluding the dead storage capacity.

In the Bureau water storage application, it is the sum of this capacity that is reported for a collection of water storages. See the water storage diagram for more information.

This definition applies to:

accessible storage volume

The volume of water stored at a particular time and date. It excludes the dead storage volume and hence is the volume of water that can be accessed under normal circumstances without the installation of additional infrastructure. See the water storage diagram for more information.

Synonym: volume

This definition applies to:

account 2011line item 1.1 - storage

Water in artificial or natural water storages connected to rivers, for which primary purpose is medium to long term water storage to service surface water access rights. These storages can be managed by an organisation to provide water to a rural or urban water system. Weirs that are used primarily to redirect flows are excluded. The volumetric capacity reported includes dead storage capacity.

This definition applies to:

account 2011line item 1.10 - other surface water assets

Physical and non-physical surface water assets other than those defined elsewhere.

This definition applies to:

account 2011line item 1.2 - unregulated river

A river where there is no entitlement system at all or where there is an entitlement system which does not allow orders to be placed for upstream release of a licensed allocation. It includes locks and weirs used primarily to redirect flows that are located on unregulated stretches of river.

This definition applies to:

account 2011line item 1.3 - regulated river

A river on which a licensed entitlement regime exists with centralised allocation, and from which orders may be placed for upstream release of a licensed allocation. A necessary, but not sufficient condition for a river to be regulated is that it is located downstream of a surface water storage. Includes locks and weirs used primarily to redirect flows that are located on regulated stretches of river.

This definition applies to:

account 2011line item 1.4 - lakes and wetlands

Other water bodies, of natural origin, for which the primary purpose is not abstractive or consumptive use. They may include water in natural lakes, ponds, lagoons, wetlands, billabongs and groundwater-fed water bodies that are not classified as storages based on their primary purpose.

This definition applies to:

account 2011line item 1.5 - inter-region claim on water

A claim to water outside the region held on behalf of the surface water. It includes claims resulting from:

• an announced allocation held on a water resource located outside the region

• inter-government agreements at allocation (retail) level

It excludes claims resulting from:

• inter-government agreements to share water before it is allocated

• water traded into the region

• contract to deliver desalinated sea water.

This definition applies to:

account 2011line item 1.6 - claim on water traded into the region

A claim to water resulting from water traded into the region held on behalf of the surface water.

This definition applies to:

account 2011line item 1.7 - claim on desalinated water

A claim to desalinated sea water held on behalf of the surface water. It excludes claims on behalf of the urban water system, which are reported in line item 3.6 Urban claim on desalinated water.

This definition applies to:

account 2011line item 1.8 - other claims on water

A claim to water held on behalf of the surface water other than those defined elsewhere.

This definition applies to:

account 2011line item 1.9 - overdraft of surface water allocation

A claim to water held on behalf of the surface water, following an overdraft of surface water allocation by an allocation holder that is not part of the water accounting region. This can be thought of as an 'advance draw'. It includes overdraft by private allocation holders.

It only includes overdraft by urban water system and irrigation schemes when those are not part of the water accounting region.

This definition applies to:

account 2011line item 10.1 - groundwater inflow from outside region

Lateral flow of groundwater into the region's groundwater from inland groundwater aquifers that extend outside the region. It excludes lateral flow of groundwater from coastal aquifers.

This definition applies to:

account 2011line item 10.10 - urban water discharge to groundwater

Discharge from the urban water system either directly or indirectly to the region's groundwater. It includes recycled water discharge to infiltration basins for the purpose of recharging groundwater and wastewater discharge to groundwater via infiltration.

This definition applies to:

account 2011line item 10.11 - delivery of claimed water

Delivery of water to the region's groundwater to service a prior claim recognised on behalf of the groundwater.

This definition applies to:

account 2011line item 10.12 - increase of groundwater claims on water

Increase of claim held on behalf of the region's groundwater. It includes claims resulting from:

• an announced allocation held on a water resource located outside the region

• inter-government agreements at allocation (retail) level

• water traded into the region.

It excludes claims resulting from inter-government agreements to share water before it is allocated.

This definition applies to:

account 2011line item 10.13 - other groundwater increases

Increases of physical and non-physical groundwater assets other than those defined elsewhere.

This definition applies to:

account 2011line item 10.2 - groundwater inflow from outside region at coast

Lateral flow of groundwater into the region from groundwater aquifers that extend outside the region at the coast.

This definition applies to:

account 2011line item 10.3 - recharge from landscape

Diffuse recharge from landscape to the region's groundwater due to both natural and artificial processes. It includes irrigation induced recharge. It excludes urban infiltration basin recharge or managed aquifer recharge.

This definition applies to:

account 2011line item 10.4 - recharge from surface water

Recharge from surface water to the region's groundwater. It includes the deliberate recharge of groundwater from surface water storages and rivers.

This definition applies to:

account 2011line item 10.5 - leakage from off-channel water storage

Leakage from off-channel water storages to the region's groundwater.

This definition applies to:

account 2011line item 10.6 - leakage from urban water system

Leakage from urban water systems to the region's groundwater. It includes exfiltration from wastewater collection systems. It includes leakage from non-potable, potable and recycled water supply systems. It excludes pipe bursts, overflows or spills.

This definition applies to:

account 2011line item 10.7 - leakage from irrigation scheme

Leakage from an irrigation scheme to the region's groundwater. It includes leakage from irrigation channels, tanks and storages that form part of the irrigation scheme.

This definition applies to:

account 2011line item 10.8 - managed aquifer recharge - private user

Managed aquifer recharge other than from the urban water system to the region's groundwater. It includes stormwater and industrial wastewater used for managed aquifer recharge and for a managed aquifer recharge scheme.

This definition applies to:

account 2011line item 10.9 - managed aquifer recharge - urban water system

Managed aquifer recharge from the urban water system to the region's groundwater. It includes non-potable and recycled water used in a managed aquifer recharge scheme.

This definition applies to:

account 2011line item 11.1 - precipitation on urban water system

All forms in which water falls on the region's urban water system as rain, sleet, snow, hail, or drizzle. It includes precipitation on wastewater treatment lagoons or ponds, recycled water storages and off-channel water storages that are part of the urban water system. It excludes precipitation on surface water storages.

This definition applies to:

account 2011line item 11.10 - delivery of traded water to urban water system

Delivery of water into the region's urban water system to service a prior claim resulting from water traded into the region (see line item 11.16 Increase of urban claim on traded water).

This definition applies to:

account 2011line item 11.11 - delivery of claimed desalinated water to urban water system

Delivery of desalinated sea water to the region's urban water system to service a prior claim recognised on behalf of the urban water system. It excludes delivery of desalinated sea water where no prior claim has been recognised (see line item 11.6 Delivery of desalinated water to urban water system). It excludes water delivered to an urban water system from the region's surface water that was originally desalinated water.

This definition applies to:

account 2011line item 11.12 - allocation diversion of surface water to urban water system

Diversion of surface water to the region's urban water system to service a prior allocation announced on behalf of the urban water system. It includes diversions under 32.3 Surface water access entitlement for allocation diversion.

This definition applies to:

account 2011line item 11.13 - allocation extraction of groundwater to urban water system

Diversion of groundwater to the region's urban water system to service a prior allocation announced on behalf of the urban water system. It includes diversions under 33.3 Groundwater access entitlement for allocation diversion.

This definition applies to:

account 2011line item 11.14 - other delivery of water to urban water system

Delivery of physical water to the region's urban water system other than those defined elsewhere.

This definition applies to:

account 2011line item 11.15 - increase of inter-region claim on water by urban water system

Increase of claims to water outside the region on behalf of the urban water system. It includes claims resulting from:

• an announced allocation held on a water resource located outside the region

• agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region

• contract to deliver desalinated sea water.

This definition applies to:

account 2011line item 11.16 - increase of urban claim on traded water

Increase of claim held on behalf of the urban water system resulting from water traded into the region.

This definition applies to:

account 2011line item 11.17 - increase of urban claim on desalinated water

Increase of claim to desalinated sea water held on behalf of the urban water system. It excludes an increase of claim held on behalf of the surface water (see line item 9.17 Increase of claim on desalinated water).

This definition applies to:

account 2011line item 11.18 - increase of urban claim on surface water

Increase of claim on the region's surface water held on behalf of the urban water system. It includes allocations announced or otherwise recognised during the reporting period on the region's surface water for the urban water system.

This definition applies to:

account 2011line item 11.19 - increase of urban claim on groundwater

Increase of claim on the region's groundwater held on behalf of the urban water system. It includes allocations announced or otherwise recognised during the reporting period on the region's groundwater for the urban water system.

This definition applies to:

account 2011line item 11.2 - non-allocated diversion of surface water

Diversion from the region's surface water into the urban water system where no prior claim has been recognised on behalf of the urban water system. It includes diversions under 32.2 surface water access entitlement for direct diversion and the 32.1 Other statutory surface water rights.

This definition applies to:

account 2011line item 11.20 - increase of other urban claims on water

Increase of claim held on behalf of the region's urban water system other than those defined elsewhere.

This definition applies to:

account 2011line item 11.21 - other urban water increases

Increases of physical and non-physical urban water system assets other than those defined elsewhere.

This definition applies to:

account 2011line item 11.3 - non-allocated extraction of groundwater

Extraction from the region's groundwater into the urban water system where no prior claim has been recognised on behalf of the urban water system. It includes extractions under 33.2 Groundwater access entitlement for direct extraction and 33.1 Other statutory groundwater rights.

This definition applies to:

account 2011line item 11.4 - wastewater collected

Discharge of wastewater into the region's wastewater collection system. It includes discharge of wastewater by users into wastewater collection systems. It excludes wastewater collected by urban utilities outside the region and then transferred into the region.

This definition applies to:

account 2011line item 11.5 - delivery of water from outside region to urban water system

Delivery of imported water to the region's urban water system where no prior claim has been recognised on behalf of the urban water system. It includes non-potable, potable, wastewater and recycled water transferred into the region by urban water utilities servicing an area that extends outside the region.

This definition applies to:

account 2011line item 11.6 - delivery of desalinated water to urban water system

Delivery of desalinated sea water to the region's urban water system where no prior claim has been recognised on behalf of the urban water system.

This definition applies to:

account 2011line item 11.7 - stormwater ingress

Ingress of stormwater into the region's wastewater collection system.

This definition applies to:

account 2011line item 11.8 - infiltration from groundwater

Infiltration of groundwater into the region's wastewater collection system.

This definition applies to:

account 2011line item 11.9 - delivery of water to urban water system under inter-region agreement

Delivery of imported water to the region's urban water system to service a prior claim recognised on behalf of the urban water system. The prior claim may be an announced allocation held on a water resource located outside the region or another agreement at allocation (retail level), but excludes water trade and contracts for the delivery of desalinated sea water.

This definition applies to:

account 2011line item 12.1 - precipitation on irrigation scheme

All forms in which water falls on the region's irrigation scheme as rain, sleet, snow, hail, or drizzle. F873It includes precipitation on irrigation supply and collection channels, and irrigation scheme storages.

This definition applies to:

account 2011line item 12.10 - allocation extraction of groundwater to irrigation scheme

Diversion of groundwater to the region's irrigation scheme to service a prior allocation announced on behalf of the irrigation scheme. It includes diversions under 33.3 Groundwater access entitlement for allocation diversion.

This definition applies to:

account 2011line item 12.11 - other delivery of water to irrigation scheme

Delivery of physical water to the region's irrigation scheme other than those defined elsewhere.

This definition applies to:

account 2011line item 12.12 - increase of irrigation scheme inter-region claim on water

Increase of claims to water outside the region on behalf of the irrigation scheme. It includes claims resulting from:

• an announced allocation held on a water resource located outside the region

• agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region

• contract to deliver desalinated sea water.

This definition applies to:

account 2011line item 12.13 - increase of irrigation scheme claim on traded water

Increase of claim held on behalf of the irrigation scheme resulting from water traded into the region.

This definition applies to:

account 2011line item 12.14 - increase of irrigation scheme claim on desalinated water

Increase of claim to desalinated sea water held on behalf of the irrigation scheme. It excludes an increase of claim held on behalf of the surface water (see line item 9.17 Increase of claim on desalinated water).

This definition applies to:

account 2011line item 12.15 - increase of irrigation scheme claim on surface water

Increase of claim on the region's surface water held on behalf of the irrigation scheme. It includes allocations announced or otherwise recognised during the reporting period on the region's surface water for the irrigation scheme.

This definition applies to:

account 2011line item 12.16 - increase of irrigation scheme claim on groundwater

Increase of claim on the region's groundwater held on behalf of the irrigation scheme. It includes allocations announced or otherwise recognised during the reporting period on the region's groundwater for the irrigation scheme.

This definition applies to:

account 2011line item 12.17 - increase of other irrigation scheme claims on water

Increase of claim held on behalf of the region's irrigation scheme other than those defined elsewhere.

This definition applies to:

account 2011line item 12.18 - other irrigation water increases

Increases of physical and non-physical irrigation scheme assets other than those defined elsewhere.

This definition applies to:

account 2011line item 12.2 - non-allocated diversion of surface water

Diversion from the region's surface water into the irrigation scheme where no prior claim has been recognised on behalf of the irrigation scheme. It includes diversions under 32.2 Surface water access entitlement for direct diversion and 32.1 Other statutory surface water rights.

This definition applies to:

account 2011line item 12.3 - non-allocated extraction of groundwater

Extraction from the region's groundwater into the irrigation scheme where no prior claim has been recognised on behalf of the irrigation scheme. It includes extractions under 33.2 Groundwater access entitlement for direct extraction and 33.1 Other statutory groundwater rights.

This definition applies to:

account 2011line item 12.4 - urban water discharge to irrigation scheme

Delivery of water from the region's urban water system to the irrigation scheme where no prior claim has been recognised on behalf of the irrigation scheme. It includes recycled water.

This definition applies to:

account 2011line item 12.5 - delivery of water from outside region to irrigation scheme

Delivery of imported water to the region's irrigation scheme where no prior claim has been recognised on behalf of the irrigation scheme. It includes water transferred into the region by irrigation entities servicing an area that extends outside the region.

This definition applies to:

account 2011line item 12.6 - delivery of water to irrigation scheme under inter-region agreement

Delivery of imported water to the region's irrigation scheme to service a prior claim recognised on behalf of the irrigation scheme. The prior claim may be an announced allocation held on a water resource located outside the region or another agreement at allocation (retail level), but excludes water trade and contracts for the delivery of desalinated sea water.

This definition applies to:

account 2011line item 12.7 - delivery of traded water to irrigation scheme

Delivery of water into the region's irrigation scheme to service a prior claim resulting from water traded into the region (see line item 12.13 Increase of irrigation scheme claim on traded water).

This definition applies to:

account 2011line item 12.8 - delivery of claimed desalinated water to irrigation scheme

Delivery of desalinated sea water to the region's irrigation scheme to service a prior claim recognised on behalf of the irrigation scheme. It excludes delivery of desalinated sea water where no prior claim has been recognised.

This definition applies to:

account 2011line item 12.9 - allocation diversion of surface water to irrigation scheme

Diversion of surface water to the region's irrigation scheme to service a prior allocation announced on behalf of the irrigation scheme. It includes diversions under 32.3 Surface water access entitlement for allocation diversion.

This definition applies to:

account 2011line item 13.1 - adjustment and forfeiture of surface water allocation

Adjustment and forfeiture of allocation on the surface water held on behalf of users other than the urban water system. It includes adjustment and forfeiture of allocation for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes adjustment and forfeiture of allocation for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 13.3 Adjustment and forfeiture of surface water allocation - irrigation scheme).

This definition applies to:

account 2011line item 13.2 - adjustment and forfeiture of surface water allocation - urban water system

Adjustment and forfeiture of allocation on the surface water held on behalf the urban water system. It includes adjustment and forfeiture of allocation for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2011line item 13.3 - adjustment and forfeiture of surface water allocation - irrigation scheme

Adjustment and forfeiture of allocation on the surface water held on behalf of irrigation schemes where those are identified as water asset of the water accounting region. It excludes adjustment and forfeiture of allocation for:

• irrigation scheme considered as users not part of the water assets of the water accounting region (reported in line item 13.1 Adjustment and forfeiture of surface water allocation).

This definition applies to:

account 2011line item 13.4 - adjustment and forfeiture of inter-region commitment on surface water

Adjustment and forfeiture of inter-region commitment on surface water (see line item 5.4 Inter-region commitment on surface water) approved during the reporting period (or remaining from the previous reporting period) that has not been serviced at the end of the reporting period.

This definition applies to:

account 2011line item 13.5 - adjustment and forfeiture of traded surface water commitment

Adjustment and forfeiture of commitment resulting from trade of surface water out of the region (see line item 5.5 Commitment on water traded out of the region) approved during the reporting period (or remaining from the previous reporting period) that has not been serviced at the end of the reporting period.

This definition applies to:

account 2011line item 13.6 - other surface water liability decreases

Decreases of surface water liabilities other than those defined elsewhere.

This definition applies to:

account 2011line item 14.1 - adjustment and forfeiture of groundwater allocation

Adjustment and forfeiture of allocation on the groundwater held on behalf of users other than the urban water system. It includes adjustment and forfeiture of allocation for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes adjustment and forfeiture of allocation for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 14.3 Adjustment and forfeiture of groundwater allocation - irrigation scheme).

This definition applies to:

account 2011line item 14.2 - adjustment and forfeiture of groundwater allocation - urban water system

Adjustment and forfeiture of allocation on the groundwater held on behalf the urban water system. It includes adjustment and forfeiture of allocation for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2011line item 14.3 - adjustment and forfeiture of groundwater allocation - irrigation scheme

Adjustment and forfeiture of allocation on the groundwater held on behalf of irrigation schemes where those are identified as a water asset of the water accounting region.

It excludes adjustment and forfeiture of allocation for:

• irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 14.1 Adjustment and forfeiture of groundwater allocation).

This definition applies to:

account 2011line item 14.4 - adjustment and forfeiture of inter-region commitment on groundwater

Adjustment and forfeiture of inter-region commitment on groundwater (see line item 6.4 Inter-region commitment on groundwater) approved during the reporting period (or remaining from the previous reporting period) that has not been serviced at the end of the reporting period.

This definition applies to:

account 2011line item 14.5 - adjustment and forfeiture of traded groundwater commitment

Adjustment and forfeiture of commitment resulting from trade of groundwater out of the region (see line item 6.5 Commitment on traded out groundwater) approved during the reporting period (or remaining from the previous reporting period) that has not been serviced at the end of the reporting period.

This definition applies to:

account 2011line item 14.6 - other groundwater liability decreases

Decreases of groundwater liabilities other than those defined elsewhere.

This definition applies to:

account 2011line item 15.1 - adjustment and forfeiture of urban water system commitment to deliver water

Adjustment and forfeiture of commitment made during the reporting period (or remaining from the previous reporting period) to deliver water from the region's urban water system to users within or out of the region or to other urban water systems out of the region. It excludes adjustment and forfeiture of commitment to deliver water to surface water, groundwater and the irrigation scheme where those are part of the water accounting region.

This definition applies to:

account 2011line item 15.2 - other urban water system liability decreases

Decreases of urban water system liabilities other than those defined elsewhere. It includes adjustment and forfeiture of commitment to deliver water to surface water, groundwater and the irrigation scheme where those are part of the water accounting region.

This definition applies to:

account 2011line item 16.1 - adjustment and forfeiture of irrigation scheme commitment to deliver water

Adjustment and forfeiture of commitment made during the reporting period (or remaining from the previous reporting period) to deliver water from the region's irrigation scheme to users within or out of the region or to other irrigation schemes out of the region. It excludes adjustment and forfeiture of commitment to deliver water to surface water, groundwater and the urban water system where those are part of the water accounting region.

This definition applies to:

account 2011line item 16.2 - other irrigation scheme liability decreases

Decreases of irrigation scheme liabilities other than those defined elsewhere. It includes adjustment and forfeiture of commitment to deliver water to surface water, groundwater and the F910urban water system where those are part of the water accounting region.

This definition applies to:

account 2011line item 17.1 - evaporation from surface water

Movement of water from the region's surface water to the atmosphere (water vapour).

This definition applies to:

account 2011line item 17.10 - river and floodplain leakage, evaporation and errors

All uncalculated flows and changes in storage and errors made on calculated terms related to the surface water. The main uncalculated ouflows may include: runoff water evaporated or leaked from the floodplain and not reaching the rivers, overbank flood water, leakage to groundwater and evaporation from rivers.

This definition applies to:

account 2011line item 17.11 - surface water allocation diversion

Surface water diverted to users other than the urban water system, under water access entitlements for which an allocation has been recognised (see line item 32.3 Surface water access entitlement for allocation diversion). It includes allocated diversions for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocated diversions for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 17.13 Surface water allocation diversion - irrigation scheme).

This definition applies to:

account 2011line item 17.12 - surface water allocation diversion - urban water system

Surface water diverted to urban water system, under water access entitlements for which an allocation has been recognised (see line item 32.3 Surface water access entitlement for allocation diversion). It includes allocated diversions for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2011line item 17.13 - surface water allocation diversion - irrigation scheme

Surface water diverted to irrigation schemes under water access entitlements for which an allocation has been recognised (see line item 32.3 Surface water access entitlement for allocation diversion). It includes allocated diversions for:

• irrigation schemes where those are identified as water asset of the water accounting region

It excludes allocated diversions for:

• irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 17.11 Surface water allocation diversion).

This definition applies to:

account 2011line item 17.14 - surface water transfer under inter-region commitment

Surface water transferred out of the region under a recognised inter-region commitment to deliver surface water (see line item 5.4 Inter-region commitment on surface water).

This definition applies to:

account 2011line item 17.15 - surface water transfer under trade commitment

Surface water transferred out of the region under a recognised commitment to deliver surface water traded to another region (see line item 5.5 Commitment on water traded out of the region).

This definition applies to:

account 2011line item 17.16 - other delivery of allocated surface water

Surface water diverted under a recognised commitment to deliver surface water other than those defined elsewhere.

This definition applies to:

account 2011line item 17.17 - decrease of inter-region claim on water

Decrease of claim to water outside the region held on behalf of the surface water. It includes adjustment and forfeiture of claims resulting from:

• an announced allocation held on a water resource located outside the region

• inter-government agreements at allocation (retail) level.

It excludes adjustment and forfeiture of claims resulting from:

• inter-government agreements to share water before it is allocated

• water traded into the region

• contracts to deliver desalinated sea water.

This definition applies to:

account 2011line item 17.18 - decrease of claim on traded water

Decrease of claim to water resulting from water traded into the region held on behalf of the surface water.

This definition applies to:

account 2011line item 17.19 - decrease of claim on desalinated water

Decrease of claim to desalinated sea water held on behalf of the surface water. It excludes claims on behalf of the urban water system, which are reported in line item 19.16 Decrease of urban claim on desalinated water.

This definition applies to:

account 2011line item 17.2 - river outlow from the region

River outflow from the region to either a downstream region or the sea.

This definition applies to:

account 2011line item 17.20 - decrease of other claims on water

Decrease of claims to water held on behalf of the surface water other than those defined elsewhere.

This definition applies to:

account 2011line item 17.21 - other surface water decreases

Decreases of physical and non-physical surface water assets other than those defined elsewhere.

This definition applies to:

account 2011line item 17.3 - leakage to groundwater

Leakage from either the surface water, urban system or irrigation scheme to the region's groundwater. It excludes pipe bursts, overflows or spills, which are classified as leakage to landscape.

This definition applies to:

account 2011line item 17.4 - leakage to landscape

Leakage from either the surface water, urban water system or irrigation scheme to the unsaturated zone of the soil profile and which does not infiltrate to groundwater as recharge.

This definition applies to:

account 2011line item 17.5 - overbank flood spilling

Overflow from the surface water to the landscape. It includes flood waters that have overflowed the river channel top of bank and spilled to the flood plains. It excludes flood waters to seasonally connected wetlands and other surface water bodies.

This definition applies to:

account 2011line item 17.6 - diversions - other statutory rights

Surface water diverted under statutory rights other than entitlements (see line item 32.1 Other statutory surface water rights).

This definition applies to:

account 2011line item 17.7 - non-allocated diversions to users

Surface water diverted to users other than the urban water system, under water access entitlements for which no allocation has been recognised (see line item 32.2 Surface water access entitlement for direct diversion). It includes non-allocated diversions for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes non-allocated diversions for:

irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 17.9 Non-allocated diversions - irrigation scheme).

This definition applies to:

account 2011line item 17.8 - non-allocated diversions - urban water system

Surface water diverted to an urban water system, under water access entitlements for which no allocation has been recognised (see line item 32.2 Surface water access entitlement for direct diversion). It includes non-allocated diversions for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2011line item 17.9 - non-allocated diversions - irrigation scheme

Surface water diverted to irrigation schemes under water access entitlements for which no allocation has been recognised (see line item 32.2 Surface water access entitlement for direct diversion). It includes non-allocated diversions for:

• irrigation schemes where those are identified as a water asset of the water accounting region.

It excludes non-allocated diversions for:

• irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 17.7 Non-allocated diversions to users).

This definition applies to:

account 2011line item 18.1 - groundwater outflow to outside region

Lateral flow of groundwater out of the region's groundwater to inland groundwater aquifers that extend outside the region. It excludes lateral flow of groundwater to coastal aquifers.

This definition applies to:

account 2011line item 18.10 - non-allocated extractions - irrigation scheme

Groundwater extracted to irrigation schemes under water access entitlements for which no allocation has been recognised (see line item 33.2 Groundwater access entitlement for direct extraction). It includes non-allocated extractions for:

irrigation schemes where those are identified as water asset of the water accounting region

It excludes non-allocated extractions for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 18.8 Non-allocated extractions to users).

This definition applies to:

account 2011line item 18.11 - groundwater allocation extraction

Groundwater extracted to users other than the urban water system, under water access entitlements for which an allocation has been recognised (see line item 33.3 Groundwater access entitlement for allocation extraction). It includes allocated extractions for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocated extractions for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 18.13 Groundwater allocation diversion - irrigation scheme).

This definition applies to:

account 2011line item 18.12 - groundwater allocation diversion - urban water system

Groundwater extracted to urban water system, under water access entitlements for which an allocation has been recognised (see line item 33.3 Groundwater access entitlement for allocation extraction). It includes allocated extractions for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2011line item 18.13 - groundwater allocation diversion - irrigation scheme

Groundwater extracted to irrigation schemes under water access entitlements for which an allocation has been recognised (see line item 33.3 Groundwater access entitlement for allocation extraction). It includes allocated extractions for:

irrigation schemes where those are identified as a water asset of the water accounting region.

It excludes allocated extractions for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 18.11 Groundwater allocation extraction).

This definition applies to:

account 2011line item 18.14 - groundwater transfer under inter-region commitment

Groundwater transferred out of the region under a recognised inter-region commitment to deliver groundwater (see line item 6.4 Inter-region commitment on groundwater).

This definition applies to:

account 2011line item 18.15 - groundwater transfer under trade commitment

Groundwater transferred out of the region under a recognised commitment to deliver groundwater traded to another region (see line item 6.5 Commitment on traded out groundwater).

This definition applies to:

account 2011line item 18.16 - other delivery of allocated groundwater

Groundwater diverted under a recognised commitment to deliver groundwater other than those defined elsewhere.

This definition applies to:

account 2011line item 18.17 - decrease of claims on groundwater

Decrease of claim to water outside the region held on behalf of the groundwater. It includes adjustment and forfeiture of claims resulting from:

• an announced allocation held on a water resource located outside the region

• inter-government agreements at allocation (retail) level

• water traded into the region

• contract to deliver desalinated sea water.

It excludes adjustment and forfeiture of claims resulting from:

• inter-government agreements to share water before it is allocated.

This definition applies to:

account 2011line item 18.18 - other groundwater decreases

Decreases of physical and non-physical groundwater assets other than those defined elsewhere.

This definition applies to:

account 2011line item 18.2 - groundwater outflow to outside region at coast

Lateral flow of groundwater out of the region to groundwater aquifers that extend outside the region at the coast.

This definition applies to:

account 2011line item 18.3 - discharge to landscape

Discharge from the groundwater to the landscape, including soil, unconnected lakes and wetlands. It includes capillary rise and evaporation from the water table aquifer.

This definition applies to:

account 2011line item 18.4 - discharge to surface water

Flow of groundwater from the saturated zone to streams, water storages, farm dams and natural surface water features. This is a form of groundwater-surface water interaction.

This definition applies to:

account 2011line item 18.5 - discharge to off-channel water storage

Discharge from groundwater to the region's off-channel water storages such as farm dams.

This definition applies to:

account 2011line item 18.6 - infiltration to urban water system

Infiltration of groundwater into the region's wastewater collection system.

This definition applies to:

account 2011line item 18.7 - extraction - other statutory rights

Groundwater extracted under statutory rights other than entitlements (see line item 33.1 Other statutory groundwater rights).

This definition applies to:

account 2011line item 18.8 - non-allocated extractions to users

Groundwater extracted to users other than the urban water system, under water access entitlements for which no allocation has been recognised (see line item 33.2 groundwater access entitlement for direct extraction). It includes non-allocated extractions for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes non-allocated extractions for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 18.10 Non-allocated extractions - irrigation scheme).

This definition applies to:

account 2011line item 18.9 - non-allocated extractions - urban water system

Groundwater extracted to urban water system, under water access entitlements for which no allocation has been recognised (see line item 33.2 Groundwater access entitlement for direct extraction). It includes non-allocated extractions for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2011line item 19.1 - evaporation from urban water

Movement of water from the region's urban water system to the atmosphere (water vapour).

This definition applies to:

account 2011line item 19.10 - urban water discharge to groundwater

Water from the urban water system discharged either directly or indirectly to the groundwater. It includes recycled water discharged to infiltration basins for the purpose of recharging groundwater and wastewater discharged to groundwater via infiltration.

This definition applies to:

account 2011line item 19.11 - transfer of water outside of region

Water transferred out of the region from the urban water system without prior commitment to deliver water having being recognised. It includes export of non-potable, potable, wastewater and recycled water from the region due to the region's urban utilities servicing an area that extends outside the region.

This definition applies to:

account 2011line item 19.12 - delivery of committed urban water

Water transferred out of the region or delivered to urban water users from the urban water system under a recognised commitment, including result of a water trade, to deliver water. It excludes commitments in favour of the surface water, groundwater and irrigation scheme where those have been identified as water assets of the region.

This definition applies to:

account 2011line item 19.13 - delivery of other committed urban water

Water delivered from the urban water system under a recognised commitment other than those defined elsewhere.

This definition applies to:

account 2011line item 19.14 - decrease of urban inter-region claim on water

Decrease of claim to water outside the region on behalf of the urban water system. It includes adjustment and forfeiture of claim resulting from:

allocations announced under entitlements to access a water resource located outside the region

• other agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region.

This definition applies to:

account 2011line item 19.15 - decrease of urban claim on traded water

Decrease of claim to water resulting from water traded into the region on behalf of the urban water system.

This definition applies to:

account 2011line item 19.16 - decrease of urban claim on desalinated water

Decrease of claim to desalinated sea water on behalf of the urban water system. It excludes claims on behalf of the surface water, which are reported in line item 17.19 Decrease of claim on desalinated water.

This definition applies to:

account 2011line item 19.17 - decrease of urban claim on surface water

Decrease of claims on the region's surface water held on behalf of the urban water system. It includes adjustment and forfeiture of surface water allocation announced or otherwise recognised during the reporting period (or remaining from the previous reporting period) for the urban water system.

This definition applies to:

account 2011line item 19.18 - decrease of urban claim on groundwater

Decrease of claims on the region's groundwater held on behalf of the urban water system. It includes adjustment and forfeiture of groundwater allocation announced or otherwise recognised during the reporting period (or remaining from the previous reporting period) for the urban water system.

This definition applies to:

account 2011line item 19.19 - decrease of other urban claims on water

Decrease of claims to water held on behalf of the urban water system other than those defined elsewhere.

This definition applies to:

account 2011line item 19.2 - leakage to landscape

Leakage from the urban water system to the landscape. It includes non-potable, potable and recycled water supply system pipe bursts and wastewater collection system overflows. It excludes background leakage, which is included in line item 19.3 Leakage to groundwater.

This definition applies to:

account 2011line item 19.20 - other urban water decreases

Decreases of physical and non-physical urban water system assets other than those defined elsewhere.

This definition applies to:

account 2011line item 19.3 - leakage to groundwater

Leakage from either the surface water, urban system or irrigation scheme to the region's groundwater. It excludes pipe bursts, overflows or spills, which are classified as leakage to landscape.

This definition applies to:

account 2011line item 19.4 - delivery to urban water system users

Delivery of water from the region's urban water system to urban users. It includes non-potable, potable and recycled water supplied from the region's urban water system for residential, commercial, industrial, municipal and individual irrigation use. It excludes delivery of water to the region's irrigation schemes where those are part of the water accounting region.

This definition applies to:

account 2011line item 19.5 - urban water discharge to surface water

Discharge from the urban water system to the region's surface water. It includes:

• non-potable, potable, treated wastewater and recycled water discharge to surface water

• pump back or transfer back of water to surface water for the purpose of storage. It includes releases to meet environmental requirements

• pump back or transfer of water to off-channel water storages that are part of the urban water supply system.

This definition applies to:

account 2011line item 19.6 - urban water discharge to irrigation scheme

Delivery of water from the urban water system to the region's irrigation scheme without prior commitment to deliver water having been recognised.

This definition applies to:

account 2011line item 19.7 - wastewater discharge outside of region

Discharge of treated wastewater out of the region. This definition includes discharge to sea and to other regions.

This definition applies to:

account 2011line item 19.8 - other wastewater discharge

Discharge of treated wastewater other than that defined elsewhere.

This definition applies to:

account 2011line item 19.9 - managed aquifer recharge

The volume of water intentionally transferred to ground water assets (e.g. via injection wells) from other water assets: either surface water, urban water system or irrigation scheme.

This definition applies to:

account 2011line item 2.1 - water table aquifer

Portion of the groundwater that is contained in an aquifer that is not overlain by a confining bed and whose upper surface is a water table free to fluctuate in equilibrium with atmospheric pressure. It includes all types of unconfined aquifers, including fractured rock and sedimentary.

This definition applies to:

account 2011line item 2.2 - underlying aquifers

Portion of the groundwater that is contained in an aquifer overlain by a confining bed. A confining bed acts as a barrier to water flow. Pressure in an underlying aquifer is typically greater than atmospheric pressure. It includes all types of confined aquifers, including fractured rock and sedimentary.

This definition applies to:

account 2011line item 2.3 - groundwater claims on water

Claims to water outside the region held on behalf of the groundwater. It includes claims resulting from:

allocations announced under entitlements to access a water resource located outside the region

• inter-government agreements at allocation (retail) level.

It excludes claims resulting from:

• inter-government agreements to share water before it is allocated

• water traded into the region.

This definition applies to:

account 2011line item 2.4 - overdraft of groundwater allocation

Claim to water held on behalf of the groundwater, following an overdraft of groundwater allocation by an allocation holder that is not part of the water accounting region. This can be thought of as an advance draw.

It includes overdraft by private allocation holders.

It only includes overdraft by urban water system and irrigation schemes when those are not part of the water accounting region.

This definition applies to:

account 2011line item 2.5 - other groundwater assets

Physical and non-physical groundwater assets other than those defined elsewhere.

This definition applies to:

account 2011line item 20.1 - evaporation from irrigation scheme

Movement of water from the region's irrigation scheme to the atmosphere (water vapour).

This definition applies to:

account 2011line item 20.10 - decrease of irrigation scheme claim on traded water

Decrease of claim to water resulting from water traded into the region on behalf of the irrigation scheme.

This definition applies to:

account 2011line item 20.11 - decrease of irrigation scheme claim on desalinated water

Decrease of claim to desalinated sea water on behalf of the irrigation scheme. It excludes claims on behalf of the surface water, which are reported in line item 17.19 Decrease of claim on desalinated water.

This definition applies to:

account 2011line item 20.12 - decrease of irrigation scheme claim on surface water

Decrease of claims on the region's surface water held on behalf of the irrigation scheme. It includes adjustment and forfeiture of surface water allocation announced or otherwise recognised during the reporting period (or remaining from the previous reporting period) for the irrigation scheme.

This definition applies to:

account 2011line item 20.13 - decrease of irrigation scheme claim on groundwater

Decrease of claims on the region's groundwater held on behalf of the irrigation scheme. It includes adjustment and forfeiture of groundwater allocation announced or otherwise recognised during the reporting period (or remaining from the previous reporting period) for the irrigation scheme.

This definition applies to:

account 2011line item 20.14 - decrease of other irrigation scheme claims on water

Decrease of claims to water held on behalf of the irrigation scheme other than those defined elsewhere.

This definition applies to:

account 2011line item 20.15 - other irrigation scheme decreases

Decreases of physical and non-physical irrigation scheme water assets other than those defined elsewhere.

This definition applies to:

account 2011line item 20.2 - leakage to landscape

Leakage from the irrigation scheme to the landscape. It includes leakage from irrigation scheme pipes and channel bursts and overflows. It excludes background leakage, which is included in line item 20.3 Leakage to groundwater.

This definition applies to:

account 2011line item 20.3 - leakage to groundwater

Leakage from either the surface water, urban system or irrigation scheme to the region's groundwater. It excludes pipe bursts, overflows or spills, which are classified as leakage to landscape.

This definition applies to:

account 2011line item 20.4 - delivery to irrigation scheme users

Delivery of water from the region's irrigation scheme to users. It excludes delivery of water to the region's urban water system where it is part of the water accounting region.

This definition applies to:

account 2011line item 20.5 - return of water to surface water

Discharge from the irrigation scheme to the region's surface water. It includes point return from irrigation scheme (see [line item 9.5 Point return from irrigation scheme1203).

This definition applies to:

account 2011line item 20.7 - delivery of committed irrigation scheme water

Water transferred out of the region or delivered to users from the irrigation scheme under a recognised commitment, including result of water trade, to deliver water. It excludes commitments in favour of the surface water, groundwater and urban water system where those have been identified as water assets of the region.

This definition applies to:

account 2011line item 20.8 - delivery of other committed irrigation scheme water

Water delivered from the irrgigation scheme under a recognised commitment other than those defined elsewhere.

This definition applies to:

account 2011line item 20.9 - decrease of irrigation scheme inter-region claim on water

Decrease of claim to water outside the region on behalf of the irrigation scheme. It includes adjustment and forfeiture of claim resulting from:

allocations announced under entitlements to access a water resource located outside the region

• other agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region.

This definition applies to:

account 2011line item 21.1 - surface water allocation announcements

Surface water allocation announcement on behalf of users other than the urban water system. It includes allocation announcements for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocation announcements for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 21.3 Surface water allocation announcements - irrigation scheme).

This definition applies to:

account 2011line item 21.2 - surface water allocation announcements - urban system

Surface water allocation announcement on behalf the urban water system. It includes allocation announcements for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2011line item 21.3 - surface water allocation announcements - irrigation scheme

Surface water allocation announcement on behalf of irrigation schemes where those are identified as a water asset of the water accounting region. It excludes allocation announcements for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 21.1 Surface water allocation announcements).

This definition applies to:

account 2011line item 21.4 - increase of inter-region commitment on surface water

Increase of commitment on the region's surface water to deliver water outside the region. It includes increase of commitments resulting from:

• inter-government agreements at allocation (retail) level.

It excludes increase of commitments resulting from:

• inter-government agreements to share water before it is allocated

• water traded out of the region

• water allocated in the region that is subsequently transferred out of the region (reported in line items 21.1- surface water allocation announcements, 21.21364 or 21.31365.)

This definition applies to:

account 2011line item 21.5 - increase of commitment on traded out surface water

Increase of commitment on the region's surface water to deliver water to another region as a result of trade between both regions.

This definition applies to:

account 2011line item 21.6 - other surface water liability increases

Increase of surface water liability other than those defined elsewhere.

This definition applies to:

account 2011line item 22.1 - groundwater allocation announcements

Groundwater allocation announcement on behalf of users other than the urban water system. It includes allocation announcements for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocation announcements for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 22.3 Groundwater allocation announcements - irrigation scheme).

This definition applies to:

account 2011line item 22.2

Groundwater allocation announcement on behalf the urban water system. It includes allocation announcements for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2011line item 22.3 - groundwater allocation announcements - irrigation scheme

Groundwater allocation announcement on behalf of irrigation schemes where those are identified as a water asset of the water accounting region.

It excludes allocation announcements for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 22.1 Groundwater allocation announcements).

This definition applies to:

account 2011line item 22.4 - increase of inter-region commitment on groundwater

Increase of commitment on the region's groundwater to deliver water outside the region. It includes increase of commitments resulting from:

• inter-government agreements at allocation (retail) level

It excludes increase of commitments resulting from:

• inter-government agreements to share water before it is allocated

• water traded out of the region

• water allocated in the region that is subsequently transferred out of the region (reported in line items 22.1 - groundwater allocation announcements, 22.2 - groundwater allocation announcements - urban system or 22.3 - groundwater allocation announcements - irrigation scheme).

This definition applies to:

account 2011line item 22.5 - increase of commitment on traded out groundwater

Increase of commitment on the region's groundwater to deliver water to another region as a result of trade between both regions.

This definition applies to:

account 2011line item 22.6 - other groundwater liability increases

Increase of groundwater liability other than those defined elsewhere.

This definition applies to:

account 2011line item 23.1 - urban commitment to deliver water

Increase of commitment, including result of water trade, on the region's urban water system to deliver water to urban water users or to other urban water systems outside the region. It excludes increase of commitments in favour of the surface water, groundwater and irrigation scheme where those have been identified as water assets of the region.

This definition applies to:

account 2011line item 23.2 - other urban system liability increases

Urban water system liability increases other than those defined elsewhere.

This definition applies to:

account 2011line item 24.1 - irrigation scheme commitment to deliver water

Increase of commitment, including result of water trade, on the region's irrigation scheme to deliver water to users or to other irrigation schemes outside the region. It excludes commitments in favour of the surface water, groundwater and urban water system where those have been identified as water assets of the region.

This definition applies to:

account 2011line item 24.2 - other irrigation scheme liability increases

Irrigation scheme liability increases other than those defined elsewhere.

This definition applies to:

account 2011line item 25.1 - unaccounted-for difference

The volume necessary to reconcile the opening water storage and closing water storage with the total water inflows and total water outflows reported in the water accounting statements. This definition recognises that in the 2011 Account, there is no uncertainty attached to the values of the line items associated with water liabilities (commitments on water) and non-physical water assets (claims to water).

This definition applies to:

account 2011line item 26.1 - soil moisture

Water in the unsaturated zone of the soil profile.

This definition applies to:

account 2011line item 26.2 - flood waters out of channel

Water from flood events stored on flood plains.

This definition applies to:

account 2011line item 26.3 - lakes and wetlands

Other water bodies, of natural origin, for which the primary purpose is not abstractive or consumptive use. It may include water in natural lakes, ponds, lagoons, wetlands, billabongs and groundwater-fed water bodies that are not classified as storages based on their primary purpose.

This definition applies to:

account 2011line item 27.1 - off-channel water storages

Water in constructed storages not connected, either seasonally or perennially, to rivers. Storages are filled predominantly by harvesting local catchment runoff. Other water sources include abstractions from surface water and groundwater. It includes off-channel farm dams and industrial, commercial and mining water storages. It excludes:

• on-channel farm dams, industrial, commercial and mining water storages

• off-channel storages operated to supply urban water systems (included in line item 3.1 Urban water supply system).

This definition applies to:

account 2011line item 27.2 - rainwater tanks

Water stored in on-site infrastructure primarily designed to collect rainfall.

This definition applies to:

account 2011line item 27.3 - other off-channel storages

Water stored in off-channel water other than those defined elsewhere.

This definition applies to:

account 2011line item 28.1 - precipitation on landscape

All forms in which water falls on the region's landscape as rain, sleet, snow, hail, or drizzle. It excludes water that falls on the region's surface water, urban water system and irrigation scheme.

This definition applies to:

account 2011line item 29.1 - evaporation from landscape

Movement of water from the region's landscape water to the atmosphere (water vapour). It excludes evaporation from the region's surface water, groundwater, urban water system and irrigation scheme.

This definition applies to:

account 2011line item 29.2 - runoff harvesting

Runoff water harvested into off-channel water storages.

This definition applies to:

account 2011line item 29.3 - other landscape decreases

Decreases in landscape water other than those defined elsewhere.

This definition applies to:

account 2011line item 3.1 - urban water supply system

Water in the urban potable and non-potable water supply system, including pipes and tanks and off-stream ponds, which regulate water flow for operational purpose and not medium to long term water storage. It includes water in off-channel water storages that has already been abstracted by the region's urban water utilities, including dead storage capacity. It excludes recycled water.

This definition applies to:

account 2011line item 3.10 - other urban water assets

Physical and non-physical urban water system assets other than those defined elsewhere.

This definition applies to:

account 2011line item 3.2 - wastewater collection system

Water in the urban wastewater collection system, including wastewater lagoons and ponds, pipes, tanks, pits, sumps and storages.

This definition applies to:

account 2011line item 3.3 - recycled water supply system

Treated effluent water from wastewater treatment plants or sewer mining operations fit for recycled use and contained in the recycled water supply, including pipes, tanks and storages.

This definition applies to:

account 2011line item 3.4 - urban inter-region claim on water

Claims to water outside the region on behalf of the urban water system. It includes claims resulting from:

allocations announced under entitlements to access a water resource located outside the region

• other agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region.

This definition applies to:

account 2011line item 3.5 - urban claim on traded water

Claim to water resulting from water traded into the region on behalf of the urban water system.

This definition applies to:

account 2011line item 3.6 - urban claim on desalinated water

Claim to desalinated sea water on behalf of the urban water system. It excludes claims on behalf of the surface water, which are reported in line item 1.7 Claim on desalinated water.

This definition applies to:

account 2011line item 3.7 - urban claim on surface water

Claim to surface water within the region on behalf of the urban water system. It includes volume of surface water allocation remaining held by the region's urban utilities.

This definition applies to:

account 2011line item 3.8 - urban claim on groundwater

Claim to groundwater within the region on behalf of the urban water system. It includes volume of groundwater allocation remaining held by the region's urban utilities.

This definition applies to:

account 2011line item 3.9 - other urban claims on water

Claims to water on behalf of the urban water system other than those included elsewhere.

This definition applies to:

account 2011line item 30.1 - precipitation on off-channel water store

All forms in which water falls on the region's off-channel water store as rain, sleet, snow, hail, or drizzle. It includes precipitation on off-channel water storages and collected into rainwater tanks. It excludes precipitation on the region's landscape, surface water, urban water system and irrigation scheme.

This definition applies to:

account 2011line item 30.2 - groundwater discharge into off-channel water store

Discharge of water from the region's groundwater into off-channel water storages.

This definition applies to:

account 2011line item 30.3 - runoff harvesting into off-channel water store

Runoff water harvested into off-channel water storages.

This definition applies to:

account 2011line item 30.4 - surface water diversion into off-channel water store

Surface water diverted into off-channel water storages under water access entitlements or other statutory water rights. This definition includes surface water allocations diverted into farm dams for the purpose of storage.

This definition applies to:

account 2011line item 30.5 - groundwater extraction into off-channel water store

Groundwater diverted into off-channel water storages under water access entitlements or other statutory water rights. This definition includes surface water allocations diverted into farm dams for the purpose of storage.

This definition applies to:

account 2011line item 30.6 - other off-channel water increases

Increases in off-channel water other than those defined elsewhere.

This definition applies to:

account 2011line item 31.1 - evaporation from off-channel water storages

Movement of water from the region's off-channel water store to the atmosphere (water vapour). It excludes evaporation from the region's landscape water, surface water, groundwater, urban water system and irrigation scheme.

This definition applies to:

account 2011line item 31.2 - leakages from off-channel water storages

Leakage from off-channel water storages into the region's groundwater.

This definition applies to:

account 2011line item 31.3 - water use

Abstraction of water from the off-channel water store for use.

This definition applies to:

account 2011line item 31.4 - other off-channel water decreases

Decreases in off-channel water other than those defined elsewhere.

This definition applies to:

account 2011line item 32.1 - other statutory surface water rights

Water rights granted by a jurisdiction on the surface water resource, external to an entitlement system. These rights may be granted under a State Water Act or a water plan. They include land owner basic rights, riparian rights and non-entitled water rights for stock and domestic and mining purposes. In the National Water Account, no commitment to deliver water (water liability) is recognised for these water rights.

This definition applies to:

account 2011line item 32.2 - surface water access entitlement for direct diversion

Water access entitlements on issue granted on the surface water resource, for which no allocation (water liability) has been recognised. They include unregulated entitlement on issue in unregulated systems and in regulated systems. Unregulated flows accessed outside the normal allocation process in regulated systems are referred to as supplementary water in New South Wales.

This definition applies to:

account 2011line item 32.3 - surface water access entitlement for allocation diversion

Water access entitlements on issue granted on the surface water resource, for which an allocation (water liability) has been recognised. They include regulated entitlement.

This definition applies to:

account 2011line item 32.4 - other surface water rights

Surface water rights other than those defined elsewhere.

This definition applies to:

account 2011line item 33.1 - other statutory groundwater rights

Water rights granted by a jurisdiction on the groundwater resource, external to an entitlement system. These rights may be granted under a State Water Act or a water plan. They include land owner basic rights and non-entitled water rights for stock and domestic and mining purposes. In the National Water Account, no commitment to deliver water (water liability) is recognised for these water rights.

This definition applies to:

account 2011line item 33.2 - groundwater access entitlement for direct extraction

Water access entitlements on issue granted on the groundwater resource for which no allocation (water liability) has been recognised.

This definition applies to:

account 2011line item 33.3 - groundwater access entitlement for allocation extraction

Water access entitlements on issue granted on the groundwater resource, for which an allocation (water liability) has been recognised. They include regulated entitlement. They include entitlements for which the entitled volume has been recognised as a water liability, although there was no formal allocation announcement.

This definition applies to:

account 2011line item 33.4 - other groundwater rights

Groundwater rights other than those defined elsewhere.

This definition applies to:

account 2011line item 34.1 - combined surface water and groundwater rights

Water access entitlements on issue that grant access to either surface water or groundwater.

This definition applies to:

account 2011line item 35.1 - trade of surface water entitlement within region

Approved transaction to transfer perpetually a surface water access entitlement between legal entities located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 35.2 - trade of surface water entitlement into region

Approved transaction to transfer perpetually a surface water access entitlement from a legal entity located outside the region's boundary to a legal entity located within the region's geographic boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 35.3 - trade of surface water entitlement out of region

Approved transaction to transfer perpetually a surface water access entitlement from a legal entity located within the region's boundary to a legal entity located outside the region's geographic boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 36.1 - lease of surface water entitlement within region

Approved transaction to transfer for a specified term a surface water access entitlement between legal entities located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 36.2 - lease of surface water entitlement into region

Approved transaction to transfer for a specified term a surface water access entitlement from a legal entity located outside the region's boundary to a legal entity located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 36.3 - lease of surface water entitlement out of region

Approved transaction to transfer for a specified term a surface water access entitlement from a legal entity located within the region's boundary to a legal entity located outside the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 37.1 - surface water allocation trade within region

Transfer of surface water allocation between legal entities located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 37.2 - surface water allocation trade into region

Transfer of surface water allocation from a legal entity located outside the region's boundary to a legal entity located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 37.3 - surface water allocation trade out of region

Transfer of surface water allocation from a legal entity located within the region's boundary to a legal entity located outside the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 38.1 - trade of groundwater entitlement within region

Approved transaction to transfer perpetually a groundwater access entitlement between legal entities located within the region's boundary, with or without a change in location of the abstraction point.

This definition applies to:

account 2011line item 38.2 - trade of groundwater entitlement into region

Approved transaction to transfer perpetually a groundwater access entitlement from a legal entity located outside the region's boundary to a legal entity located within the region's boundary, with or without a change in location of the abstraction point.

This definition applies to:

account 2011line item 38.3 - trade of groundwater entitlement out of region

Approved transaction to transfer perpetually a groundwater access entitlement from a legal entity located within the region's boundary to a legal entity located outside the region's boundary, with or without a change in location of the abstraction point.

This definition applies to:

account 2011line item 39.1 - lease of groundwater entitlement within region

Approved transaction to transfer for a specified term a groundwater access entitlement between legal entities located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 39.2 - lease of groundwater entitlement into region

Approved transaction to transfer for a specified term a groundwater access entitlement from a legal entity located outside the region's boundary to a legal entity located within the region's boundary, with or without change in location of the abstraction

This definition applies to:

account 2011line item 39.3 - lease of groundwater entitlement out of region

Approved transaction to transfer for a specified term a groundwater access entitlement from a legal entity located within the region's boundary to a legal entity located outside the region's boundary, with or without change in location of the abstraction

This definition applies to:

account 2011line item 4.1 - irrigation water supply system

Water in the irrigation water supply and collection system, including pipes, artificial channels and tanks. It includes water in off-channel water storages that has already been abstracted by the region's irrigation scheme, including dead storage capacity. It excludes water in private channels and storages, already abstracted from the scheme by individual irrigators.

This definition applies to:

account 2011line item 4.2 - irrigation scheme inter-region claim on water

Claims to water outside the region on behalf of the irrigation scheme. It includes claims resulting from:

allocations announced under entitlements to access a water resource located outside the region

• other agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region.

This definition applies to:

account 2011line item 4.3 - irrigation scheme claim on traded water

Claim to water resulting from water traded into the region on behalf of the irrigation scheme.

This definition applies to:

account 2011line item 4.4 - irrigation scheme claim on desalinated water

Claim to desalinated sea water on behalf of the irrigation scheme. It excludes claims on behalf of the surface water, which are reported in line item 1.7 Claim on desalinated water.

This definition applies to:

account 2011line item 4.5 - irrigation scheme claim on surface water

Claim to surface water within the region on behalf of the irrigation scheme. It includes volume of surface water allocation remaining held by the region's irrigation entities.

This definition applies to:

account 2011line item 4.6 - irrigation scheme claim on groundwater

Claim to groundwater within the region on behalf of the irrigation scheme. It includes volume of groundwater allocation remaining held by the region's irrigation entities.

This definition applies to:

account 2011line item 4.7 - other irrigation scheme claims on water

Claims to water on behalf of the irrigation scheme other than those included elsewhere.

This definition applies to:

account 2011line item 4.8 - other irrigation scheme water assets

Physical and non-physical irrigation scheme water assets other than those defined elsewhere.

This definition applies to:

account 2011line item 40.1 - groundwater allocation trade within region

Transfer of groundwater allocation between legal entities located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 40.2 - groundwater allocation trade into region

Transfer of groundwater allocation from a legal entity located outside the region's boundary to a legal entity located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 40.3 - groundwater allocation trade out of region

Transfer of groundwater allocation from a legal entity located within the region's boundary to a legal entity located outside the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2011line item 41.1 - precipitation on storages

All forms in which water falls on the region's water storages as rain, sleet, snow, hail, or drizzle. The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 41.2 - groundwater discharge into storages

Groundwater discharge to the region's water storages. The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 41.3 - runoff into storages

Water that rans off into the region's water storages. It includes river flow into the water storages and runoff flowing directly from the landscape into the storages. The value can include all or part of the water storages reported under line item 1.1 Storages.

This definition applies to:

account 2011line item 41.4 - transfer of water into storages

Water transferred via infrastructure into the water storages under any type of water access entitlement or other arrangement. The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 41.5 - other storage increases

Inflows into water storages other than those defined elsewhere. The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 42.1 - evaporation from storages

Movement of water from the region's water storages to the atmosphere (water vapour). The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 42.2 - groundwater recharge from storages

Infiltration from the water storages to the region's groundwater. It includes the deliberate recharge of groundwater from water storages. The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 42.3 - leakage from storages

Leakage from the water storages to the soil. It excludes recharge to groundwater. The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 42.4 - spillage from storages

Overflow from water storages via spillway and leakage through a dams' wall into downstream river. The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 42.5 - releases from storages

Releases from water storages into a downstream river under any type of water access entitlement or other arrangement. It includes releases to provide environmental benefit and responses to calls on announced allocation. The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 42.6 - diversions from storages

Diversions via infrastructure from water storages under any type of water access entitlement or other arrangement. It includes diversions within the region and out of the region. It excludes releases to a downstream river. The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 42.7 - other storage decreases

Outflows from water storages other than those defined elsewhere. The value can include all or part of the water storages reported under line item 1.1 Storage.

This definition applies to:

account 2011line item 5.1 - surface water allocation remaining

Surface water allocation remaining on behalf of users other than the urban water system. It includes allocations remaining for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocations remaining for:

irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 5.3 surface water allocation remaining - irrigation scheme).

This definition applies to:

account 2011line item 5.2 - surface water allocation remaining - urban water system

Surface water allocation remaining on behalf the urban water system. It includes allocations remaining for: • allocation holders located outside the region's boundary.

This definition applies to:

account 2011line item 5.3 - surface water allocation remaining - irrigation scheme

Surface water allocation remaining on behalf of irrigation schemes where those are identified as water asset of the water accounting region. It excludes allocations remaining for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 5.1 surface water allocation remaining).

This definition applies to:

account 2011line item 5.4 - inter-region commitment on surface water

Commitment on the region's surface water to deliver water outside the region. It includes commitments resulting from:

• inter-government agreements at allocation (retail) level.

It excludes commitments resulting from:

• inter-government agreements to share water before it is allocated

• water traded out of the region

• water allocated in the region that is subsequently transferred out of the region. Such commitment is reported as line item 5.1, 5.2 or 5.3.

This definition applies to:

account 2011line item 5.5 - commitment on water traded out of the region

Commitment on the region's surface water to deliver water to another region as a result of trade between both regions.

This definition applies to:

account 2011line item 5.6 - other surface water liability

Surface water liability other than those defined elsewhere. It does not include rules-based obligation, such as a commitment to ensure minimum passing flows to a downstream region.

This definition applies to:

account 2011line item 6.1 - groundwater allocation remaining

Groundwater allocation remaining on behalf of users other than the urban water system. It includes allocations remaining for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocations remaining for:

• irrigation schemes where those are identified as a+F805 water asset of the water accounting region (reported in line item 6.3 Groundwater allocation remaining - irrigation scheme).

This definition applies to:

account 2011line item 6.2 - groundwater allocation remaining - urban water system

Groundwater allocation remaining on behalf the urban water system. It includes allocations remaining for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2011line item 6.3 - groundwater allocation remaining - irrigation scheme

Groundwater allocation remaining on behalf of irrigation schemes where those are identified as a water asset of the water accounting region. It excludes allocations remaining for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 6.1 Groundwater allocation remaining).

This definition applies to:

account 2011line item 6.4 - inter-region commitment on groundwater

Commitment on the region's groundwater to deliver water outside the region. It includes commitments resulting from:

• inter-government agreements at allocation (retail) level.

It excludes commitments resulting from:

• inter-government agreements to share water before it is allocated

• water traded out of the region

• water allocated in the region that is subsequently transferred out of the region. Such commitment is reported as line item 6.1- groundwater allocation remaining, 6.2- groundwater allocation remaining - urban water system or 6.3- groundwater allocation remaining - irrigation scheme.

This definition applies to:

account 2011line item 6.5 - commitment on traded out groundwater

Commitment on the region's groundwater to deliver water to another region as a result of trade between both regions.

This definition applies to:

account 2011line item 6.6 - other groundwater liability

Groundwater liability other than those defined elsewhere. It does not include rules-based obligation, such as a commitment to maintain groundwater at a certain level.

This definition applies to:

account 2011line item 7.1 - urban system commitment to provide water

Commitment, including result of water trade, on the region's urban water system to deliver water to urban water users or to other urban water systems outside the region. It excludes commitments in favour of the surface water, groundwater and irrigation scheme where those have been identified as water assets of the region.

This definition applies to:

account 2011line item 7.2 - other urban water liability

Urban water system liability other than those defined elsewhere.

This definition applies to:

account 2011line item 8.1 - irrigation scheme commitment to provide water

Commitment, including result of water trade, on the region's irrigation scheme to deliver water to users or to other irrigation schemes outside the region. It excludes commitments in favour of the surface water, groundwater and urban water system where those have been identified as water assets of the region.

This definition applies to:

account 2011line item 8.2 - other irrigation scheme liability

Irrigation scheme liability other than those defined elsewhere.

This definition applies to:

account 2011line item 9.1 - precipitation on surface water

All forms in which water falls on the region's surface water as rain, sleet, snow, hail, or drizzle.

This definition applies to:

account 2011line item 9.10 - direct discharge by user

Discharge of water by a user to the region's surface water done directly and not through the urban or irrigation collection systems. It includes discharge of water that has been self-abstracted or delivered through an urban or irrigation water supply system.

This definition applies to:

account 2011line item 9.11 - delivery of water under inter-region agreement

Delivery of imported water to the region's surface water to service a prior claim recognised on behalf of the surface water. The prior claim may be an inter-basin agreement or an announced allocation held on a water resource located outside the region, but excludes water trade (see line item 9.12 Delivery of traded water).

This definition applies to:

account 2011line item 9.12 - delivery of traded water

Delivery of water into the region's surface water to service a prior claim resulting from water traded into the region (see line item 9.16 Increase of claim on water traded into the region).

This definition applies to:

account 2011line item 9.13 - delivery of claimed desalinated water

Delivery of desalinated sea water to the region's surface water to service a prior claim recognised on behalf of the surface water. It excludes delivery of desalinated sea water where no prior claim has been recognised (see line item 9.8 Delivery of desalinated water).

This definition applies to:

account 2011line item 9.14 - other delivery of water

Delivery of water to the region's surface water other than those defined elsewhere.

This definition applies to:

account 2011line item 9.15 - increase of inter-region claim on water

Increase of claims to water outside the region on behalf of the surface water. It includes claims resulting from:

• an announced allocation held on a water resource located outside the region

• inter-government agreements at allocation (retail) level.

It excludes claims resulting from:

• inter-government agreements to share water before it is allocated

• water traded into the region

• contract to deliver desalinated sea water.

This definition applies to:

account 2011line item 9.16 - increase of claim on water traded into the region

Increase of claim held on behalf of the surface water resulting from water traded into the region.

This definition applies to:

account 2011line item 9.17 - increase of claim on desalinated water

Increase of claim to desalinated sea water held on behalf of the surface water. It excludes increase of claim held on behalf of the urban water system (see line item 11.17 Increase of urban claim on desalinated water).

This definition applies to:

account 2011line item 9.18 - increase of other claims on water

Increase of claim held on behalf of the region's surface water other than those defined elsewhere.

This definition applies to:

account 2011line item 9.19 - other surface water increases

Increases of physical and non-physical surface water assets other than those defined elsewhere.

This definition applies to:

account 2011line item 9.2 - river inflow to region

River inflow that enters the region.

This definition applies to:

account 2011line item 9.3 - groundwater discharge

Groundwater discharge to the region's surface water.

This definition applies to:

account 2011line item 9.4 - runoff to surface water

Runoff from landscape to the region's surface water due to rainfall or irrigation.

This definition applies to:

account 2011line item 9.5 - point return from irrigation scheme

Point discharge from irrigation scheme to the region's surface water. It includes overflows from irrigation scheme water supply channels and discharge of used irrigation water from irrigation scheme collection systems.

This definition applies to:

account 2011line item 9.6 - overbank flood return to river channel

Return of flood waters from the flood plains. It excludes flood waters returning from seasonally connected wetlands and other surface water bodies.

This definition applies to:

account 2011line item 9.7 - delivery of water from outside region

Delivery of imported water to the region's surface water where no prior claim has been recognised on behalf of the surface water.

This definition applies to:

account 2011line item 9.8 - delivery of desalinated water

Delivery of desalinated sea water to the region's surface water where no prior claim has been recognised on behalf of the surface water.

This definition applies to:

account 2011line item 9.9 - discharge from urban water system

Discharge from urban water systems to the region's surface water. It includes discharge of non-potable, potable, treated wastewater and recycled water. It includes pump back or transfer back of water to surface water for the purpose of storage and releases to meet environmental requirements. It excludes pump back or transfer of water to off-channel water storages considered part of the urban water system (see line item 3.1 Urban water supply system).

This definition applies to:

account 2012-2017 line item 1.1 – storage

Water in artificial or natural water storages connected to rivers, for which primary purpose is medium to long term water storage to service surface water access rights. These storages can be managed by an organisation to provide water to a rural or urban water system. Weirs that are used primarily to redirect flows are excluded. The volumetric capacity reported includes dead storage capacity.

This definition applies to:

account 2012-2017 line item 1.10 – other surface water assets

Physical and non-physical surface water assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 1.2 – unregulated river

A river where there is no entitlement system at all or where there is an entitlement system which does not allow orders to be placed for upstream release of a licensed allocation. It includes locks and weirs used primarily to redirect flows that are located on unregulated stretches of river.

This definition applies to:

account 2012-2017 line item 1.3 – regulated river

A river on which a licensed entitlement regime exists with centralised allocation, and from which orders may be placed for upstream release of a licensed allocation. A necessary, but not sufficient condition for a river to be regulated is that it is located downstream of a surface water storage. Includes locks and weirs used primarily to redirect flows that are located on regulated stretches of river.

This definition applies to:

account 2012-2017 line item 1.4 – lakes and wetlands

Other water bodies, of natural origin, for which the primary purpose is not abstractive or consumptive use. They may include water in natural lakes, ponds, lagoons, wetlands, billabongs and groundwater-fed water bodies that are not classified as storages based on their primary purpose.

This definition applies to:

account 2012-2017 line item 1.5 – inter–region claim on water

A claim to water outside the region held on behalf of the surface water. It includes claims resulting from:

• an announced allocation held on a water resource located outside the region

• inter-government agreements at allocation (retail) level

It excludes claims resulting from:

• inter-government agreements to share water before it is allocated

• water traded into the region

• contract to deliver desalinated sea water.

This definition applies to:

account 2012-2017 line item 1.6 – claim on water traded into the region

A claim to water resulting from water traded into the region held on behalf of the surface water.

This definition applies to:

account 2012-2017 line item 1.7 – claim on desalinated water

A claim to desalinated sea water held on behalf of the surface water. It excludes claims on behalf of the urban water system, which are reported in account 2012-2017 line item 3.6 – urban claim on desalinated water.

This definition applies to:

account 2012-2017 line item 1.8 – other claims on water

A claim to water held on behalf of the surface water other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 1.9 – overdraft of surface water allocation

A claim to water held on behalf of the surface water, following an overdraft of surface water allocation by an allocation holder that is not part of the water accounting region. This can be thought of as an 'advance draw'. It includes overdraft by private allocation holders.

It only includes overdraft by urban water system and irrigation schemes when those are not part of the water accounting region.

This definition applies to:

account 2012-2017 line item 10.1 – groundwater inflow from outside region

Lateral flow of groundwater into the region's groundwater from inland groundwater aquifers that extend outside the region. It excludes lateral flow of groundwater from coastal aquifers.

This definition applies to:

account 2012-2017 line item 10.10 – discharge from urban water system to groundwater

Discharge from the urban water system either directly or indirectly to the region's groundwater. It includes recycled water discharge to infiltration basins for the purpose of recharging groundwater and wastewater discharge to groundwater via infiltration.

This definition applies to:

account 2012-2017 line item 10.11 – delivery of claimed water to groundwater

Delivery of water to the region's groundwater to service a prior claim recognised on behalf of the groundwater.

This definition applies to:

account 2012-2017 line item 10.12 – increase of groundwater claims on water

Increase of claim held on behalf of the region's groundwater. It includes claims resulting from:

• an announced allocation held on a water resource located outside the region

• inter-government agreements at allocation (retail) level

• water traded into the region.

It excludes claims resulting from inter-government agreements to share water before it is allocated.

This definition applies to:

account 2012-2017 line item 10.13 – other groundwater increases

Increases of physical and non-physical groundwater assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 10.2 – groundwater inflow from outside region at coast

Lateral flow of groundwater into the region from groundwater aquifers that extend outside the region at the coast.

This definition applies to:

account 2012-2017 line item 10.3 – recharge from landscape

Diffuse recharge from landscape to the region's groundwater due to both natural and artificial processes. It includes irrigation induced recharge. It excludes urban infiltration basin recharge or managed aquifer recharge.

This definition applies to:

account 2012-2017 line item 10.4 – recharge from surface water

Recharge from surface water to the region's groundwater. It includes the deliberate recharge of groundwater from surface water storages and rivers.

This definition applies to:

account 2012-2017 line item 10.5 – leakage from off – channel water storage

Leakage from off-channel water storages to the region's groundwater.

This definition applies to:

account 2012-2017 line item 10.6 – leakage from urban water system

Leakage from urban water systems to the region's groundwater. It includes exfiltration from wastewater collection systems. It includes leakage from non-potable, potable and recycled water supply systems. It excludes pipe bursts, overflows or spills.

This definition applies to:

account 2012-2017 line item 10.7 – leakage from irrigation scheme

Leakage from an irrigation scheme to the region's groundwater. It includes leakage from irrigation channels, tanks and storages that form part of the irrigation scheme.

This definition applies to:

account 2012-2017 line item 10.8 – managed aquifer recharge – private user

Managed aquifer recharge other than from the urban water system to the region's groundwater. It includes stormwater and industrial wastewater used for managed aquifer recharge and for a managed aquifer recharge scheme.

This definition applies to:

account 2012-2017 line item 10.9 – managed aquifer recharge – urban water system

Managed aquifer recharge from the urban water system to the region's groundwater. It includes non-potable and recycled water used in a managed aquifer recharge scheme.

This definition applies to:

account 2012-2017 line item 11.1 – precipitation on urban water system

All forms in which water falls on the region's urban water system as rain, sleet, snow, hail, or drizzle. It includes precipitation on wastewater treatment lagoons or ponds, recycled water storages and off-channel water storages that are part of the urban water system. It excludes precipitation on surface water storages.

This definition applies to:

account 2012-2017 line item 11.10 – delivery of traded water to urban water system

Delivery of water into the region's urban water system to service a prior claim resulting from water traded into the region (see account 2012-2017 line item 11.16 – increase of urban claim on traded water).

This definition applies to:

account 2012-2017 line item 11.11 – delivery of claimed desalinated water to urban water system

Delivery of desalinated sea water to the region's urban water system to service a prior claim recognised on behalf of the urban water system. It excludes delivery of desalinated sea water where no prior claim has been recognised (see account 2012-2017 line item 11.6 – delivery of desalinated water to urban water system). It excludes water delivered to an urban water system from the region's surface water that was originally desalinated water.

This definition applies to:

account 2012-2017 line item 11.12 – entitled diversion of allocated surface water to urban water system

Diversion of surface water to the region's urban water system to service a prior allocation announced on behalf of the urban water system. It includes diversions under account 2012-2017 line item 32.3 – surface water access entitlement for allocation diversion.

This definition applies to:

account 2012-2017 line item 11.13 – entitled extraction of allocated groundwater to urban water system

Diversion of groundwater to the region's urban water system to service a prior allocation announced on behalf of the urban water system. It includes diversions under account 2012-2017 line item 33.3 – groundwater access entitlement for allocation diversion.

This definition applies to:

account 2012-2017 line item 11.14 – other delivery of water to urban water system

Delivery of physical water to the region's urban water system other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 11.15 – increase of inter – region claim on water by urban water system

Increase of claims to water outside the region on behalf of the urban water system. It includes claims resulting from:

• an announced allocation held on a water resource located outside the region

• agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region

• contract to deliver desalinated sea water.

This definition applies to:

account 2012-2017 line item 11.16 – increase of urban claim on traded water

Increase of claim held on behalf of the urban water system resulting from water traded into the region.

This definition applies to:

account 2012-2017 line item 11.17 – increase of urban claim on desalinated water

Increase of claim to desalinated sea water held on behalf of the urban water system. It excludes an increase of claim held on behalf of the surface water (see line item 9.17 – increase of surface water claim on desalinated water).

This definition applies to:

account 2012-2017 line item 11.18 – increase of urban claim on surface water

Increase of claim on the region's surface water held on behalf of the urban water system. It includes allocations announced or otherwise recognised during the reporting period on the region's surface water for the urban water system.

This definition applies to:

account 2012-2017 line item 11.19 – increase of urban claim on groundwater

Increase of claim on the region's groundwater held on behalf of the urban water system. It includes allocations announced or otherwise recognised during the reporting period on the region's groundwater for the urban water system.

This definition applies to:

account 2012-2017 line item 11.2 – entitled diversion of non-allocated surface water to urban water system

Diversion from the region's surface water into the urban water system where no prior claim has been recognised on behalf of the urban water system. It includes diversions under 32.2–surface water access entitlement for non-allocated diversions and the 32.1–other statutory surface water rights.

This definition applies to:

account 2012-2017 line item 11.20 – increase of other urban claims on water

Increase of claim held on behalf of the region's urban water system other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 11.21 – other urban water system increases

Increases of physical and non-physical urban water system assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 11.3 – entitled extraction of non–allocated groundwater to urban water system

Extraction from the region's groundwater into the urban water system where no prior claim has been recognised on behalf of the urban water system. It includes extractions under 33.2 Groundwater access entitlement for direct extraction and 33.1 Other statutory groundwater rights.

This definition applies to:

account 2012-2017 line item 11.4 – wastewater collected

Metered volume of wastewater collected by the wastewater collection network, which is part of the region's wastewater system. It includes wastewater discharged following the use of water supplied via the region's urban water supply system or taken individually (e.g. from rainwater tanks).

It excludes wastewater collected by urban utilities outside the region and then transferred into the region.

This definition applies to:

account 2012-2017 line item 11.5 – delivery of water from outside region to urban water system

Delivery of imported water to the region's urban water system where no prior claim has been recognised on behalf of the urban water system. It includes potable, non-potable, wastewater and recycled water transferred into the region by urban water agencies servicing an area that extends outside the region.

This definition applies to:

account 2012-2017 line item 11.6 – delivery of desalinated water to urban water system

Delivery of desalinated sea water to the region's urban water system where no prior claim has been recognised on behalf of the urban water system.

This definition applies to:

account 2012-2017 line item 11.7 – stormwater ingress

Ingress of stormwater into the region's wastewater system.

Note: This item shouldn't be considered as part of the urban water system increases. Wastewater collected (metered volume) includes this component (see account 2012-2017 line item 11.4). However, this item is to be considered as part of the 'Landscape store decrease'.

This definition applies to:

account 2012-2017 line item 11.8 – infiltration from groundwater to urban water system

Infiltration of groundwater into the region's wastewater system.

Note: This item shouldn't be considered as part of the 'Urban water system increases'. Wastewater collected (metered volume) includes this component (see account 2012-2017 line item 11.4). However, this item is to be considered as part of the 'Groundwater store decrease'.

This definition applies to:

account 2012-2017 line item 11.9 – delivery of water to urban water system under inter-region agreement

Delivery of imported water to the region's urban water system to service a prior claim recognised on behalf of the urban water system. The prior claim may be an announced allocation held on a water resource located outside the region or another agreement at allocation (retail level), but excludes water trade and contracts for the delivery of desalinated sea water.

This definition applies to:

account 2012-2017 line item 12.1 – precipitation on irrigation scheme

All forms in which water falls on the region's irrigation scheme as rain, sleet, snow, hail, or drizzle. F873It includes precipitation on irrigation supply and collection channels, and irrigation scheme storages.

This definition applies to:

account 2012-2017 line item 12.10 – entitled extraction of allocated groundwater to irrigation scheme

Diversion of groundwater to the region's irrigation scheme to service a prior allocation announced on behalf of the irrigation scheme. It includes diversions under account 2012-2017 line item 33.3 – groundwater access entitlement for allocation diversion.

This definition applies to:

account 2012-2017 line item 12.11 – other delivery of water to irrigation scheme

Delivery of physical water to the region's irrigation scheme other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 12.12 – increase of irrigation scheme inter-region claim on water

Increase of claims to water outside the region on behalf of the irrigation scheme. It includes claims resulting from:

• an announced allocation held on a water resource located outside the region

• agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region

• contract to deliver desalinated sea water.

This definition applies to:

account 2012-2017 line item 12.13 – increase of irrigation scheme claim on traded water

Increase of claim held on behalf of the irrigation scheme resulting from water traded into the region.

This definition applies to:

account 2012-2017 line item 12.14 – increase of irrigation scheme claim on desalinated water

Increase of claim to desalinated sea water held on behalf of the irrigation scheme. It excludes an increase of claim held on behalf of the surface water (see line item 9.17 – increase of surface water claim on desalinated water).

This definition applies to:

account 2012-2017 line item 12.15 – increase of irrigation scheme claim on surface water

Increase of claim on the region's surface water held on behalf of the irrigation scheme. It includes allocations announced or otherwise recognised during the reporting period on the region's surface water for the irrigation scheme.

This definition applies to:

account 2012-2017 line item 12.16 – increase of irrigation scheme claim on groundwater

Increase of claim on the region's groundwater held on behalf of the irrigation scheme. It includes allocations announced or otherwise recognised during the reporting period on the region's groundwater for the irrigation scheme.

This definition applies to:

account 2012-2017 line item 12.17 – increase of other irrigation scheme claims on water

Increase of claim held on behalf of the region's irrigation scheme other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 12.18 – other irrigation water increases

Increases of physical and non-physical irrigation scheme assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 12.2 – entitled diversion of non – allocated surface water to irrigation scheme

Diversion from the region's surface water into the irrigation scheme where no prior claim has been recognised on behalf of the irrigation scheme. It includes diversions under 32.2 – surface water access entitlement for non-allocated diversions and 32.1 – other statutory surface water rights.

This definition applies to:

account 2012-2017 line item 12.3 – entitled extraction of non-allocated groundwater to irrigation scheme

Extraction from the region's groundwater into the irrigation scheme where no prior claim has been recognised on behalf of the irrigation scheme. It includes extractions under 33.2 Groundwater access entitlement for direct extraction and 33.1 Other statutory groundwater rights.

This definition applies to:

account 2012-2017 line item 12.4 – discharge from urban water system to irrigation scheme

Delivery of water from the region's urban water system to the irrigation scheme where no prior claim has been recognised on behalf of the irrigation scheme. It includes recycled water.

This definition applies to:

account 2012-2017 line item 12.5 – delivery of water from outside region to irrigation scheme

Delivery of imported water to the region's irrigation scheme where no prior claim has been recognised on behalf of the irrigation scheme. It includes water transferred into the region by irrigation entities servicing an area that extends outside the region.

This definition applies to:

account 2012-2017 line item 12.6 – delivery of water to irrigation scheme under inter–region agreement

Delivery of imported water to the region's irrigation scheme to service a prior claim recognised on behalf of the irrigation scheme. The prior claim may be an announced allocation held on a water resource located outside the region or another agreement at allocation (retail level), but excludes water trade and contracts for the delivery of desalinated sea water.

This definition applies to:

account 2012-2017 line item 12.7 – delivery of traded water to irrigation scheme

Delivery of water into the region's irrigation scheme to service a prior claim resulting from water traded into the region (see line item 12.13 – increase of irrigation scheme claim on traded water).

This definition applies to:

account 2012-2017 line item 12.8 – delivery of claimed desalinated water to irrigation scheme

Delivery of desalinated sea water to the region's irrigation scheme to service a prior claim recognised on behalf of the irrigation scheme. It excludes delivery of desalinated sea water where no prior claim has been recognised.

This definition applies to:

account 2012-2017 line item 12.9 – entitled diversion of allocated surface water to irrigation scheme

Diversion of surface water to the region's irrigation scheme to service a prior allocation announced on behalf of the irrigation scheme. It includes diversions under account 2012-2017 line item 32.3 – surface water access entitlement for allocation diversion.

This definition applies to:

account 2012-2017 line item 13.1 – adjustment and forfeiture of surface water allocation

Adjustment and forfeiture of allocation on the surface water held on behalf of users other than the urban water system. It includes adjustment and forfeiture of allocation for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes adjustment and forfeiture of allocation for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 13.3 – adjustment and forfeiture of surface water allocation – irrigation scheme).

This definition applies to:

account 2012-2017 line item 13.2 – adjustment and forfeiture of surface water allocation – urban water system

Adjustment and forfeiture of allocation on the surface water held on behalf the urban water system. It includes adjustment and forfeiture of allocation for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2012-2017 line item 13.3 – adjustment and forfeiture of surface water allocation – irrigation scheme

Adjustment and forfeiture of allocation on the surface water held on behalf of irrigation schemes where those are identified as water asset of the water accounting region. It excludes adjustment and forfeiture of allocation for:

• irrigation scheme considered as users not part of the water assets of the water accounting region (reported in line item 13.1–adjustment and forfeiture of surface water allocation).

This definition applies to:

account 2012-2017 line item 13.4 – adjustment and forfeiture of inter-region commitment on surface water

Adjustment and forfeiture of inter-region commitment on surface water (see line item 5.4–inter-region commitment on surface water) approved during the reporting period (or remaining from the previous reporting period) that has not been serviced at the end of the reporting period.

This definition applies to:

account 2012-2017 line item 13.5 – adjustment and forfeiture of traded surface water commitment

Adjustment and forfeiture of commitment resulting from trade of surface water out of the region (see line item 5.5 – commitment on water traded out of the region) approved during the reporting period (or remaining from the previous reporting period) that has not been serviced at the end of the reporting period.

This definition applies to:

account 2012-2017 line item 13.6 – other surface water liability decreases

Decreases of surface water liabilities other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 14.1 – adjustment and forfeiture of groundwater allocation

Adjustment and forfeiture of allocation on the groundwater held on behalf of users other than the urban water system. It includes adjustment and forfeiture of allocation for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes adjustment and forfeiture of allocation for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 14.3 – adjustment and forfeiture of groundwater allocation – irrigation scheme).

This definition applies to:

account 2012-2017 line item 14.2 – adjustment and forfeiture of groundwater allocation – urban water system

Adjustment and forfeiture of allocation on the groundwater held on behalf the urban water system. It includes adjustment and forfeiture of allocation for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2012-2017 line item 14.3 – adjustment and forfeiture of groundwater allocation – irrigation scheme

Adjustment and forfeiture of allocation on the groundwater held on behalf of irrigation schemes where those are identified as a water asset of the water accounting region.

It excludes adjustment and forfeiture of allocation for:

• irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 14.1 – adjustment and forfeiture of groundwater allocation).

This definition applies to:

account 2012-2017 line item 14.4 – adjustment and forfeiture of inter–region commitment on groundwater

Adjustment and forfeiture of inter-region commitment on groundwater (see line item 6.4 – inter-region commitment on groundwater) approved during the reporting period (or remaining from the previous reporting period) that has not been serviced at the end of the reporting period.

This definition applies to:

account 2012-2017 line item 14.5 – adjustment and forfeiture of traded groundwater commitment

Adjustment and forfeiture of commitment resulting from trade of groundwater out of the region (see line item 6.5 – commitment on traded out groundwater) approved during the reporting period (or remaining from the previous reporting period) that has not been serviced at the end of the reporting period.

This definition applies to:

account 2012-2017 line item 14.6 – other groundwater liability decreases

Decreases of groundwater liabilities other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 15.1 – adjustment and forfeiture of urban water system commitment to deliver water

Adjustment and forfeiture of commitment made during the reporting period (or remaining from the previous reporting period) to deliver water from the region's urban water system to users within or out of the region or to other urban water systems out of the region. It excludes adjustment and forfeiture of commitment to deliver water to surface water, groundwater and the irrigation scheme where those are part of the water accounting region.

This definition applies to:

account 2012-2017 line item 15.2 – other urban water system liability decreases

Decreases of urban water system liabilities other than those defined elsewhere. It includes adjustment and forfeiture of commitment to deliver water to surface water, groundwater and the irrigation scheme where those are part of the water accounting region.

This definition applies to:

account 2012-2017 line item 16.1 – adjustment and forfeiture of irrigation scheme commitment to deliver water

Adjustment and forfeiture of commitment made during the reporting period (or remaining from the previous reporting period) to deliver water from the region's irrigation scheme to users within or out of the region or to other irrigation schemes out of the region. It excludes adjustment and forfeiture of commitment to deliver water to surface water, groundwater and the urban water system where those are part of the water accounting region.

This definition applies to:

account 2012-2017 line item 16.2 – other irrigation scheme liability decreases

Decreases of irrigation scheme liabilities other than those defined elsewhere. It includes adjustment and forfeiture of commitment to deliver water to surface water, groundwater and the F910urban water system where those are part of the water accounting region.

This definition applies to:

account 2012-2017 line item 17.1 – evaporation from surface water

Movement of water from the region's surface water to the atmosphere (water vapour).

This definition applies to:

account 2012-2017 line item 17.10 – river and floodplain leakage, evaporation and errors

All uncalculated flows and changes in storage and errors made on calculated terms related to the surface water. The main uncalculated ouflows may include: runoff water evaporated or leaked from the floodplain and not reaching the rivers, overbank flood water, leakage to groundwater and evaporation from rivers.

This definition applies to:

account 2012-2017 line item 17.11 – entitled diversion of allocated surface water to users

Surface water diverted to users other than the urban water system, under water access entitlements for which an allocation has been recognised (see line item 32.3 – surface water access entitlement for allocated diversions). It includes allocated diversions for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocated diversions for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 17.13 – entitled diversion of allocated surface water to irrigation scheme).

This definition applies to:

account 2012-2017 line item 17.12 – entitled diversion of allocated surface water to urban water system

Surface water diverted to urban water system, under water access entitlements for which an allocation has been recognised (see account 2012-2017 line item 32.3 – surface water access entitlement for allocation diversion). It includes allocated diversions for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2012-2017 line item 17.13 – entitled diversion of allocated surface water to irrigation scheme

Surface water diverted to irrigation schemes under water access entitlements for which an allocation has been recognised (see line item 32.3 – surface water access entitlement for allocated diversions). It includes allocated diversions for:

• irrigation schemes where those are identified as water asset of the water accounting region

It excludes allocated diversions for:

• irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 17.11 – entitled diversion of allocated surface water to users).

This definition applies to:

account 2012-2017 line item 17.14 – surface water transfer under inter-region commitment

Surface water transferred out of the region under a recognised inter-region commitment to deliver surface water (see line item 5.4 – inter-region commitment on surface water).

This definition applies to:

account 2012-2017 line item 17.15 – surface water transfer under trade commitment

Surface water transferred out of the region under a recognised commitment to deliver surface water traded to another region (see line item 5.5 – commitment on water traded out of the region).

This definition applies to:

account 2012-2017 line item 17.16 – other delivery of allocated surface water

Surface water diverted under a recognised commitment to deliver surface water other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 17.17 – decrease of inter – region surface water claim on water

Decrease of claim to water outside the region held on behalf of the surface water. It includes adjustment and forfeiture of claims resulting from:

• an announced allocation held on a water resource located outside the region

• inter-government agreements at allocation (retail) level.

It excludes adjustment and forfeiture of claims resulting from:

• inter-government agreements to share water before it is allocated

• water traded into the region

• contracts to deliver desalinated sea water.

This definition applies to:

account 2012-2017 line item 17.18 – decrease of surface water claim on traded water

Decrease of claim to water resulting from water traded into the region held on behalf of the surface water.

This definition applies to:

account 2012-2017 line item 17.19 – decrease of surface water claim on desalinated water

Decrease of claim to desalinated sea water held on behalf of the surface water. It excludes claims on behalf of the urban water system, which are reported in line item 19.16 – adjustment and forfeiture of urban claim on desalinated water.

This definition applies to:

account 2012-2017 line item 17.2 – river outflow from the region

River outflow from the region to either a downstream region or the sea.

This definition applies to:

account 2012-2017 line item 17.20 – decrease of other surface water claims on water

Decrease of claims to water held on behalf of the surface water other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 17.21 – other surface water decreases

Decreases of physical and non-physical surface water assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 17.3 – leakage to groundwater

Leakage from either the surface water, urban system or irrigation scheme to the region's groundwater. It excludes pipe bursts, overflows or spills, which are classified as leakage to landscape.

This definition applies to:

account 2012-2017 line item 17.4 – leakage to landscape

Leakage from either the surface water, urban water system or irrigation scheme to the unsaturated zone of the soil profile and which does not infiltrate to groundwater as recharge.

This definition applies to:

account 2012-2017 line item 17.5 – overbank flood spilling

Overflow from the surface water to the landscape. It includes flood waters that have overflowed the river channel top of bank and spilled to the flood plains. It excludes flood waters to seasonally connected wetlands and other surface water bodies.

This definition applies to:

account 2012-2017 line item 17.6 – Surface water diversions – other statutory rights

Surface water diverted under statutory rights other than entitlements (see account 2012-2017 line item 32.1 – other statutory surface water rights).

This definition applies to:

account 2012-2017 line item 17.7 – entitled diversion of non–allocated surface water to users

Surface water diverted to users other than the urban water system, under water access entitlements for which no allocation has been recognised (see account 2012-2017 line item 32.2–surface water access entitlement for direct diversion). It includes non-allocated diversions for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes non-allocated diversions for:

irrigation schemes where those are identified as a water asset of the water accounting region (reported in account 2012-2017 line item line item 17.9 – non-allocated diversions - irrigation scheme).

This definition applies to:

account 2012-2017 line item 17.8 – entitled diversion of non–allocated surface water to urban water system

Surface water diverted to an urban water system, under water access entitlements for which no allocation has been recognised (see line item 32.2 – surface water access entitlement for non-allocated diversions). It includes non-allocated diversions for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2012-2017 line item 17.9 – entitled diversion of non–allocated surface water to irrigation scheme

Surface water diverted to irrigation schemes under water access entitlements for which no allocation has been recognised (see line item 32.2–surface water access entitlement for non-allocated diversions). It includes non-allocated diversions for:

• irrigation schemes where those are identified as a water asset of the water accounting region.

It excludes non-allocated diversions for:

• irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 17.7 – entitled diversion of non–allocated surface water to users).

This definition applies to:

account 2012-2017 line item 18.1 – groundwater outflow to outside region

Lateral flow of groundwater out of the region's groundwater to inland groundwater aquifers that extend outside the region. It excludes lateral flow of groundwater to coastal aquifers.

This definition applies to:

account 2012-2017 line item 18.10 – entitled extraction of non-allocated groundwater to irrigation scheme

Groundwater extracted to irrigation schemes under water access entitlements for which no allocation has been recognised (see line item 33.2 – groundwater access entitlement for direct extraction). It includes non-allocated extractions for:

irrigation schemes where those are identified as water asset of the water accounting region

It excludes non-allocated extractions for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 18.8 – entitled extraction of non-allocated groundwater to users).

This definition applies to:

account 2012-2017 line item 18.11 – entitled extraction of allocated groundwater to users

Groundwater extracted to users other than the urban water system, under water access entitlements for which an allocation has been recognised (see line item 33.3 – groundwater access entitlement for allocation extraction). It includes allocated extractions for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocated extractions for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 18.13 – groundwater allocation diversion – irrigation scheme).

This definition applies to:

account 2012-2017 line item 18.12 – entitled extraction of allocated groundwater to urban water system

Groundwater extracted to urban water system, under water access entitlements for which an allocation has been recognised (see line item 33.3 – groundwater access entitlement for allocation extraction). It includes allocated extractions for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2012-2017 line item 18.13 – entitled extraction of allocated groundwater to irrigation scheme

Groundwater extracted to irrigation schemes under water access entitlements for which an allocation has been recognised (see line item 33.3 – groundwater access entitlement for allocation extraction). It includes allocated extractions for:

irrigation schemes where those are identified as a water asset of the water accounting region.

It excludes allocated extractions for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 18.11 – entitled extraction of allocated groundwater to users).

This definition applies to:

account 2012-2017 line item 18.14 – groundwater transfer under inter–region commitment

Groundwater transferred out of the region under a recognised inter-region commitment to deliver groundwater (see line item 6.4 – inter-region commitment on groundwater).

This definition applies to:

account 2012-2017 line item 18.15 – groundwater transfer under trade commitment

Groundwater transferred out of the region under a recognised commitment to deliver groundwater traded to another region (see line item 6.5 – commitment on traded out groundwater).

This definition applies to:

account 2012-2017 line item 18.16 – other delivery of allocated groundwater

Groundwater diverted under a recognised commitment to deliver groundwater other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 18.17 – decrease of claims on groundwater

Decrease of claim to water outside the region held on behalf of the groundwater. It includes adjustment and forfeiture of claims resulting from:

• an announced allocation held on a water resource located outside the region

• inter-government agreements at allocation (retail) level

• water traded into the region

• contract to deliver desalinated sea water.

It excludes adjustment and forfeiture of claims resulting from:

• inter-government agreements to share water before it is allocated.

This definition applies to:

account 2012-2017 line item 18.18 – other groundwater decreases

Decreases of physical and non-physical groundwater assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 18.2 – groundwater outflow to outside region at coast

Lateral flow of groundwater out of the region to groundwater aquifers that extend outside the region at the coast.

This definition applies to:

account 2012-2017 line item 18.3 – discharge to landscape

Discharge from the groundwater to the landscape, including soil, unconnected lakes and wetlands. It includes capillary rise and evaporation from the water table aquifer.

This definition applies to:

account 2012-2017 line item 18.4 – discharge to surface water

Flow of groundwater from the saturated zone to streams, water storages, farm dams and natural surface water features. This is a form of groundwater-surface water interaction.

This definition applies to:

account 2012-2017 line item 18.5 – discharge to off-channel water storage

Discharge from groundwater to the region's off-channel water storages such as farm dams.

This definition applies to:

account 2012-2017 line item 18.6 – infiltration to urban water system

Infiltration of groundwater into the region's wastewater system.

This definition applies to:

account 2012-2017 line item 18.7 – groundwater extraction – other statutory rights

Groundwater extracted under statutory rights other than entitlements (see line item 33.1 – other statutory groundwater rights).

This definition applies to:

account 2012-2017 line item 18.8 – entitled extraction of non-allocated groundwater to users

Groundwater extracted to users other than the urban water system, under water access entitlements for which no allocation has been recognised (see line item 33.2 – groundwater access entitlement for direct extraction). It includes non-allocated extractions for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes non-allocated extractions for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 18.10 – entitled extraction of non-allocated groundwater to irrigation scheme).

This definition applies to:

account 2012-2017 line item 18.9 – entitled extraction of non-allocated groundwater to urban water system

Groundwater extracted to urban water system, under water access entitlements for which no allocation has been recognised (see line item 33.2 – groundwater access entitlement for direct extraction). It includes non-allocated extractions for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2012-2017 line item 19.1 – evaporation from urban water system

Movement of water from the region's urban water system to the atmosphere (water vapour).

This definition applies to:

account 2012-2017 line item 19.10 – discharge from urban water system to groundwater

Water from the urban water system discharged either directly or indirectly to groundwater. It includes recycled treated wastewater discharged to infiltration basins for the purpose of recharging groundwater.

This definition applies to:

account 2012-2017 line item 19.11 – transfer of water outside of region

Water transferred out of the region from the urban water system without prior commitment to deliver water having being recognised. It includes export of non-potable, potable, wastewater and recycled water from the region due to the region's urban utilities servicing an area that extends outside the region.

This definition applies to:

account 2012-2017 line item 19.12 – delivery of committed urban water

Water transferred out of the region or delivered to urban water users from the urban water system under a recognised commitment, including result of a water trade, to deliver water. It excludes commitments in favour of the surface water, groundwater and irrigation scheme where those have been identified as water assets of the region.

This definition applies to:

account 2012-2017 line item 19.13 – delivery of other committed urban water

Water delivered from the urban water system under a recognised commitment other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 19.14 – adjustment and forfeiture of urban inter-region claim on water

Decrease of claim to water outside the region on behalf of the urban water system. It includes adjustment and forfeiture of claim resulting from:

allocations announced under entitlements to access a water resource located outside the region

• other agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region.

This definition applies to:

account 2012-2017 line item 19.15 – adjustment and forfeiture of urban claim on traded water

Decrease of claim to water resulting from water traded into the region on behalf of the urban water system.

This definition applies to:

account 2012-2017 line item 19.16 – adjustment and forfeiture of urban claim on desalinated water

Decrease of claim to desalinated sea water on behalf of the urban water system. It excludes claims on behalf of the surface water, which are reported in line item 17.19 – decrease of surface water claim on desalinated water.

This definition applies to:

account 2012-2017 line item 19.17 – adjustment and forfeiture of urban claim on surface water

Decrease of claims on the region's surface water held on behalf of the urban water system. It includes adjustment and forfeiture of surface water allocation announced or otherwise recognised during the reporting period (or remaining from the previous reporting period) for the urban water system.

This definition applies to:

account 2012-2017 line item 19.18 – adjustment and forfeiture of urban claim on groundwater

Decrease of claims on the region's groundwater held on behalf of the urban water system. It includes adjustment and forfeiture of groundwater allocation announced or otherwise recognised during the reporting period (or remaining from the previous reporting period) for the urban water system.

This definition applies to:

account 2012-2017 line item 19.19 – Adjustment and forfeiture of other urban claims on water

Decrease of claims to water held on behalf of the urban water system other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 19.2 – leakage to landscape

Leakage from the urban water system to the landscape. It includes pipe bursts and overflows from the water supply system and the recycled water system. It excludes background leakage from urban water supply system and the recycled water system, which are included in account 2012-2017 line item 19.3 – leakage to groundwater.

This definition applies to:

account 2012-2017 line item 19.20 – other urban water system decreases

Decreases of physical and non-physical urban water system assets other than those defined elsewhere. Includes losses from the water supply system and [recycled water][793] system not included in account lines items 19.2 and 19.3 (e.g. other water losses included as part of 'non-revenue water' components).

This definition applies to:

account 2012-2017 line item 19.3 – leakage to groundwater

Leakage from the urban water system to the region's groundwater. It excludes pipe bursts, overflows or spills, which are classified as leakage to landscape reported at account line item 19.2 – leakage to landscape.

It includes background leakage from the urban water supply system and the recycled water system. It excludes pipe bursts and overflows from the urban water supply system and the recycled water system, which are included in account 2012-2017 line item 19.2 – leakage to landscape.

This definition applies to:

account 2012-2017 line item 19.4 – delivery to urban water system users

Delivery of water from the region's urban water system to urban users.

It includes portable, non-potable and recycled water supplied from the region's urban water system for residential, commercial, industrial, municipal and individual irrigation use. It excludes delivery of water to the region's irrigation schemes, which is reported under line item 19.6 – urban water discharge to irrigation scheme.

This definition applies to:

account 2012-2017 line item 19.5 – discharge from urban water system to surface water

Discharge from the urban water system to the region's surface water. It includes:

• potable and non-potable water discharge to surface water from urban water supply system including pump back or transfer back from the water supply system to surface water for the purpose of storage;

• discharge of wastewater system to surface water (treated wastewater discharge under licences, other spills or losses of wastewater to surface water);

• discharge of [recycled water][793] to surface water to meet environmental requirements; and

• discharge of [recycled water][793] to surface water to augment potable water supply.

This definition applies to:

account 2012-2017 line item 19.6 – discharge from urban water system to irrigation scheme

Delivery of water from the urban water system to the region's irrigation scheme without prior commitment to deliver water having been recognised.

This definition applies to:

account 2012-2017 line item 19.7 – wastewater discharge outside of region

Discharge of treated wastewater out of the region. This definition includes discharge to sea and to other regions.

This definition applies to:

account 2012-2017 line item 19.8 – other wastewater discharge

Discharge of treated wastewater other than those defined elsewhere. It includes treated wastewater discharged to landscape (e.g. in excess of the volume required for use as recycled water). Volumes discharged from recycled water use are excluded.

This definition applies to:

account 2012-2017 line item 19.9 – managed aquifer recharge

The volume of water intentionally transferred to ground water assets (e.g. via injection wells) from the urban water system. It includes potable, non-potable and [recycled water][793] used for managed aquifer recharge schemes.

This definition applies to:

account 2012-2017 line item 2.1 – water table aquifer

Portion of the groundwater that is contained in an aquifer that is not overlain by a confining bed and whose upper surface is a water table free to fluctuate in equilibrium with atmospheric pressure. It includes all types of unconfined aquifers, including fractured rock and sedimentary.

This definition applies to:

account 2012-2017 line item 2.2 – underlying aquifers

Portion of the groundwater that is contained in an aquifer overlain by a confining bed. A confining bed acts as a barrier to water flow. Pressure in an underlying aquifer is typically greater than atmospheric pressure. It includes all types of confined aquifers, including fractured rock and sedimentary.

This definition applies to:

account 2012-2017 line item 2.3 – groundwater claims on water

Claims to water outside the region held on behalf of the groundwater. It includes claims resulting from:

allocations announced under entitlements to access a water resource located outside the region

• inter-government agreements at allocation (retail) level.

It excludes claims resulting from:

• inter-government agreements to share water before it is allocated

• water traded into the region.

This definition applies to:

account 2012-2017 line item 2.4 – overdraft of groundwater allocation

Claim to water held on behalf of the groundwater, following an overdraft of groundwater allocation by an allocation holder that is not part of the water accounting region. This can be thought of as an advance draw.

It includes overdraft by private allocation holders.

It only includes overdraft by urban water system and irrigation schemes when those are not part of the water accounting region.

This definition applies to:

account 2012-2017 line item 2.5 – other groundwater assets

Physical and non-physical groundwater assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 20.1 – evaporation from irrigation scheme

Movement of water from the region's irrigation scheme to the atmosphere (water vapour).

This definition applies to:

account 2012-2017 line item 20.10 – adjustment and forfeiture of irrigation scheme claim on traded water

Decrease of claim to water resulting from water traded into the region on behalf of the irrigation scheme.

This definition applies to:

account 2012-2017 line item 20.11 – adjustment and forfeiture of irrigation scheme claim on desalinated water

Decrease of claim to desalinated sea water on behalf of the irrigation scheme. It excludes claims on behalf of the surface water, which are reported in line item 17.19 – decrease of surface water claim on desalinated water.

This definition applies to:

account 2012-2017 line item 20.12 – adjustment and forfeiture of irrigation scheme claim on surface water

Decrease of claims on the region's surface water held on behalf of the irrigation scheme. It includes adjustment and forfeiture of surface water allocation announced or otherwise recognised during the reporting period (or remaining from the previous reporting period) for the irrigation scheme.

This definition applies to:

account 2012-2017 line item 20.13 – adjustment and forfeiture of irrigation scheme claim on groundwater

Decrease of claims on the region's groundwater held on behalf of the irrigation scheme. It includes adjustment and forfeiture of groundwater allocation announced or otherwise recognised during the reporting period (or remaining from the previous reporting period) for the irrigation scheme.

This definition applies to:

account 2012-2017 line item 20.14 – adjustment and forfeiture of other irrigation scheme claims on water

Decrease of claims to water held on behalf of the irrigation scheme other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 20.15 – other irrigation scheme decreases

Decreases of physical and non-physical irrigation scheme water assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 20.2 – leakage to landscape

Leakage from the irrigation scheme to the landscape. It includes leakage from irrigation scheme pipes and channel bursts and overflows. It excludes background leakage, which is included in line item 20.3 – leakage to groundwater.

This definition applies to:

account 2012-2017 line item 20.3 – leakage to groundwater

Leakage from either the surface water, urban system or irrigation scheme to the region's groundwater. It excludes pipe bursts, overflows or spills, which are classified as leakage to landscape.

This definition applies to:

account 2012-2017 line item 20.4 – delivery to irrigation scheme users

Delivery of water from the region's irrigation scheme to users. It excludes delivery of water to the region's urban water system where it is part of the water accounting region.

This definition applies to:

account 2012-2017 line item 20.5 – return of water to surface water

Discharge from the irrigation scheme to the region's surface water. It includes point return from irrigation scheme (see [line item 9.5 – point return from irrigation scheme1596).

This definition applies to:

account 2012-2017 line item 20.7 – delivery of committed irrigation scheme water

Water transferred out of the region or delivered to users from the irrigation scheme under a recognised commitment, including result of water trade, to deliver water. It excludes commitments in favour of the surface water, groundwater and urban water system where those have been identified as water assets of the region.

This definition applies to:

account 2012-2017 line item 20.8 – delivery of other committed irrigation scheme water

Water delivered from the irrgigation scheme under a recognised commitment other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 20.9 – adjustment and forfeiture of irrigation scheme inter-region claim on water

Decrease of claim to water outside the region on behalf of the irrigation scheme. It includes adjustment and forfeiture of claim resulting from:

allocations announced under entitlements to access a water resource located outside the region

• other agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region.

This definition applies to:

account 2012-2017 line item 21.1 – surface water allocation announcements

Surface water allocation announcement on behalf of users other than the urban water system. It includes allocation announcements for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocation announcements for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 21.3 – surface water allocation announcements – irrigation scheme).

This definition applies to:

account 2012-2017 line item 21.2 – surface water allocation announcements – urban water system

Surface water allocation announcement on behalf the urban water system. It includes allocation announcements for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2012-2017 line item 21.3 – surface water allocation announcements – irrigation scheme

Surface water allocation announcement on behalf of irrigation schemes where those are identified as a water asset of the water accounting region. It excludes allocation announcements for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 21.1 – surface water allocation announcements).

This definition applies to:

account 2012-2017 line item 21.4 – increase of inter-region commitment on surface water

Increase of commitment on the region's surface water to deliver water outside the region. It includes increase of commitments resulting from:

• inter-government agreements at allocation (retail) level.

It excludes increase of commitments resulting from:

• inter-government agreements to share water before it is allocated

• water traded out of the region

• water allocated in the region that is subsequently transferred out of the region (reported in line items 21.1, 21.21753 or 21.31754.)

This definition applies to:

account 2012-2017 line item 21.5 – increase of commitment on traded out surface water

Increase of commitment on the region's surface water to deliver water to another region as a result of trade between both regions.

This definition applies to:

account 2012-2017 line item 21.6 – other surface water liability increases

Increase of surface water liability other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 22.1 – groundwater allocation announcements

Groundwater allocation announcement on behalf of users other than the urban water system. It includes allocation announcements for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocation announcements for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 22.3 – groundwater allocation announcements – irrigation scheme).

This definition applies to:

account 2012-2017 line item 22.2 – groundwater allocation announcements – urban water system

Groundwater allocation announcement on behalf the urban water system. It includes allocation announcements for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2012-2017 line item 22.3 – groundwater allocation announcements – irrigation scheme

Groundwater allocation announcement on behalf of irrigation schemes where those are identified as a water asset of the water accounting region.

It excludes allocation announcements for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 22.1 – groundwater allocation announcements).

This definition applies to:

account 2012-2017 line item 22.4 – increase of inter-region commitment on groundwater

Increase of commitment on the region's groundwater to deliver water outside the region. It includes increase of commitments resulting from:

• inter-government agreements at allocation (retail) level

It excludes increase of commitments resulting from:

• inter-government agreements to share water before it is allocated

• water traded out of the region

• water allocated in the region that is subsequently transferred out of the region (reported in line items 22.1 – groundwater allocation announcements, 22.2 – groundwater allocation announcements – urban water system or 22.3 – groundwater allocation announcements – irrigation scheme).

This definition applies to:

account 2012-2017 line item 22.5 – increase of commitment on traded out groundwater

Increase of commitment on the region's groundwater to deliver water to another region as a result of trade between both regions.

This definition applies to:

account 2012-2017 line item 22.6 – other groundwater liability increases

Increase of groundwater liability other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 23.1 – urban commitment to deliver water

Increase of commitment, including result of water trade, on the region's urban water system to deliver water to urban water users or to other urban water systems outside the region. It excludes increase of commitments in favour of the surface water, groundwater and irrigation scheme where those have been identified as water assets of the region.

This definition applies to:

account 2012-2017 line item 23.2 – other urban system liability increases

Urban water system liability increases other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 24.1 – irrigation scheme commitment to deliver water

Increase of commitment, including result of water trade, on the region's irrigation scheme to deliver water to users or to other irrigation schemes outside the region. It excludes commitments in favour of the surface water, groundwater and urban water system where those have been identified as water assets of the region.

This definition applies to:

account 2012-2017 line item 24.2 – other irrigation scheme liability increases

Irrigation scheme liability increases other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 25.1 – unaccounted-for difference

The volume necessary to reconcile the opening water storage and closing water storage with the total water inflows and total water outflows reported in the water accounting statements. This definition recognises that in the 2011 Account, there is no uncertainty attached to the values of the line items associated with water liabilities (commitments on water) and non-physical water assets (claims to water).

This definition applies to:

account 2012-2017 line item 26.1 – soil moisture

Water in the unsaturated zone of the soil profile.

This definition applies to:

account 2012-2017 line item 26.2 – flood waters out of channel

Water from flood events stored on flood plains.

This definition applies to:

account 2012-2017 line item 26.3 – lakes and wetlands

Other water bodies, of natural origin, for which the primary purpose is not abstractive or consumptive use. It may include water in natural lakes, ponds, lagoons, wetlands, billabongs and groundwater-fed water bodies that are not classified as storages based on their primary purpose.

This definition applies to:

account 2012-2017 line item 27.1 – off-channel water storages

Water in constructed storages not connected, either seasonally or perennially, to rivers. Storages are filled predominantly by harvesting local catchment runoff. Other water sources include abstractions from surface water and groundwater. It includes off-channel farm dams and industrial, commercial and mining water storages. It excludes:

• on-channel farm dams, industrial, commercial and mining water storages

• off-channel storages operated to supply urban water systems (included in line item 3.1 – urban water supply system).

This definition applies to:

account 2012-2017 line item 27.2 – rainwater tanks

Water stored in on-site infrastructure primarily designed to collect rainfall.

This definition applies to:

account 2012-2017 line item 27.3 – other off-channel storages

Water stored in off-channel water other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 28.1 – precipitation on landscape

All forms in which water falls on the region's landscape as rain, sleet, snow, hail, or drizzle. It excludes water that falls on the region's surface water, urban water system and irrigation scheme.

This definition applies to:

account 2012-2017 line item 29.1 – evapotranspiration from landscape

Movement of water from the region's landscape water to the atmosphere (water vapour). It excludes evaporation from the region's surface water, groundwater, urban water system and irrigation scheme.

This definition applies to:

account 2012-2017 line item 29.2 – runoff harvesting

Runoff water harvested into off-channel water storages.

This definition applies to:

account 2012-2017 line item 29.3 – other landscape decreases

Decreases in landscape water other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 3.1 – urban water supply system

Water in the potable and non-potable water supply system, including pipes and tanks. It excludes recycled water.

This definition applies to:

account 2012-2017 line item 3.10 – other urban water assets

Physical and non-physical urban water system assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 3.2 – wastewater system

Water in the wastewater system, including in the collection network and treatment lagoons and ponds, pipes, tanks, pits, sumps and storages.

This definition applies to:

account 2012-2017 line item 3.3 – recycled water system

Treated effluent water from wastewater treatment plants or sewer mining operations fit for recycled use and contained in the recycled water system, including pipes, tanks and storages.

This definition applies to:

account 2012-2017 line item 3.4 – urban inter-region claim on water

Claims to water outside the region on behalf of the urban water system. It includes claims resulting from:

allocations announced under entitlements to access a water resource located outside the region

• other agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region.

This definition applies to:

account 2012-2017 line item 3.5 – urban claim on traded water

Claim to water resulting from water traded into the region on behalf of the urban water system.

This definition applies to:

account 2012-2017 line item 3.6 – urban claim on desalinated water

Claim to desalinated sea water on behalf of the urban water system. It excludes claims on behalf of the surface water, which are reported in line item 1.7 – claim on desalinated water.

This definition applies to:

account 2012-2017 line item 3.7 – urban claim on surface water

Claim to surface water within the region on behalf of the urban water system. It includes volume of surface water allocation remaining held by the region's urban utilities.

This definition applies to:

account 2012-2017 line item 3.8 – urban claim on groundwater

Claim to groundwater within the region on behalf of the urban water system. It includes volume of groundwater allocation remaining held by the region's urban utilities.

This definition applies to:

account 2012-2017 line item 3.9 – other urban claims on water

Claims to water on behalf of the urban water system other than those included elsewhere.

This definition applies to:

account 2012-2017 line item 30.1 – precipitation on off-channel water store

All forms in which water falls on the region's off-channel water store as rain, sleet, snow, hail, or drizzle. It includes precipitation on off-channel water storages and collected into rainwater tanks. It excludes precipitation on the region's landscape, surface water, urban water system and irrigation scheme.

This definition applies to:

account 2012-2017 line item 30.2 – groundwater discharge into off-channel water store

Discharge of water from the region's groundwater into off-channel water storages.

This definition applies to:

account 2012-2017 line item 30.3 – runoff harvesting into off-channel water store

Runoff water harvested into off-channel water storages.

This definition applies to:

account 2012-2017 line item 30.4 – surface water diversion into off-channel water store

Surface water diverted into off-channel water storages under water access entitlements or other statutory water rights. This definition includes surface water allocations diverted into farm dams for the purpose of storage.

This definition applies to:

account 2012-2017 line item 30.5 – groundwater extraction into off-channel water store

Groundwater diverted into off-channel water storages under water access entitlements or other statutory water rights. This definition includes surface water allocations diverted into farm dams for the purpose of storage.

This definition applies to:

account 2012-2017 line item 30.6 – other off-channel water increases

Increases in off-channel water other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 31.1 – evaporation from off-channel water storages

Movement of water from the region's off-channel water store to the atmosphere (water vapour). It excludes evaporation from the region's landscape water, surface water, groundwater, urban water system and irrigation scheme.

This definition applies to:

account 2012-2017 line item 31.2 – leakages from off-channel water storages

Leakage from off-channel water storages into the region's groundwater.

This definition applies to:

account 2012-2017 line item 31.3 – Off-channel water abstraction

Abstraction of water from the off-channel water store for use.

This definition applies to:

account 2012-2017 line item 31.4 – other off-channel water decreases

Decreases in off-channel water other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 32.1 – other statutory surface water rights

Water rights granted by a jurisdiction on the surface water resource, external to an entitlement system. These rights may be granted under a State Water Act or a water plan. They include land owner basic rights, riparian rights and non-entitled water rights for stock and domestic and mining purposes. In the National Water Account, no commitment to deliver water (water liability) is recognised for these water rights.

This definition applies to:

account 2012-2017 line item 32.2 – surface water access entitlement for non-allocated diversions

Water access entitlements on issue granted on the surface water resource, for which no allocation (water liability) has been recognised. They include unregulated entitlement on issue in unregulated systems and in regulated systems. Unregulated flows accessed outside the normal allocation process in regulated systems are referred to as supplementary water in New South Wales.

This definition applies to:

account 2012-2017 line item 32.3 – surface water access entitlement for allocated diversions

Water access entitlements on issue granted on the surface water resource, for which an allocation (water liability) has been recognised. They include regulated entitlement.

This definition applies to:

account 2012-2017 line item 32.4 – other surface water rights

Surface water rights other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 33.1 – other statutory groundwater rights

Water rights granted by a jurisdiction on the groundwater resource, external to an entitlement system. These rights may be granted under a State Water Act or a water plan. They include land owner basic rights and non-entitled water rights for stock and domestic and mining purposes. In the National Water Account, no commitment to deliver water (water liability) is recognised for these water rights.

This definition applies to:

account 2012-2017 line item 33.2 – groundwater access entitlement for non-allocated extractions

Water access entitlements on issue granted on the groundwater resource for which no allocation (water liability) has been recognised.

This definition applies to:

account 2012-2017 line item 33.3 – groundwater access entitlement for allocated extractions

Water access entitlements on issue granted on the groundwater resource, for which an allocation (water liability) has been recognised. They include regulated entitlement. They include entitlements for which the entitled volume has been recognised as a water liability, although there was no formal allocation announcement.

This definition applies to:

account 2012-2017 line item 33.4 – other groundwater rights

Groundwater rights other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 34.1 – combined surface water and groundwater rights

Water access entitlements on issue that grant access to either surface water or groundwater.

This definition applies to:

account 2012-2017 line item 35.1 – trade of surface water entitlement within region

Approved transaction to transfer perpetually a surface water access entitlement between legal entities located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 35.2 – trade of surface water entitlement into region

Approved transaction to transfer perpetually a surface water access entitlement from a legal entity located outside the region's boundary to a legal entity located within the region's geographic boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 35.3 – trade of surface water entitlement out of region

Approved transaction to transfer perpetually a surface water access entitlement from a legal entity located within the region's boundary to a legal entity located outside the region's geographic boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 36.1 – lease of surface water entitlement within region

Approved transaction to transfer for a specified term a surface water access entitlement between legal entities located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 36.2 – lease of surface water entitlement into region

Approved transaction to transfer for a specified term a surface water access entitlement from a legal entity located outside the region's boundary to a legal entity located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 36.3 – lease of surface water entitlement out of region

Approved transaction to transfer for a specified term a surface water access entitlement from a legal entity located within the region's boundary to a legal entity located outside the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 37.1 – surface water allocation trade within region

Transfer of surface water allocation between legal entities located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 37.2 – surface water allocation trade into region

Transfer of surface water allocation from a legal entity located outside the region's boundary to a legal entity located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 37.3 – surface water allocation trade out of region

Transfer of surface water allocation from a legal entity located within the region's boundary to a legal entity located outside the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 38.1 – trade of groundwater entitlement within region

Approved transaction to transfer perpetually a groundwater access entitlement between legal entities located within the region's boundary, with or without a change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 38.2 – trade of groundwater entitlement into region

Approved transaction to transfer perpetually a groundwater access entitlement from a legal entity located outside the region's boundary to a legal entity located within the region's boundary, with or without a change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 38.3 – trade of groundwater entitlement out of region

Approved transaction to transfer perpetually a groundwater access entitlement from a legal entity located within the region's boundary to a legal entity located outside the region's boundary, with or without a change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 39.1 – lease of groundwater entitlement within region

Approved transaction to transfer for a specified term a groundwater access entitlement between legal entities located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 39.2 – lease of groundwater entitlement into region

Approved transaction to transfer for a specified term a groundwater access entitlement from a legal entity located outside the region's boundary to a legal entity located within the region's boundary, with or without change in location of the abstraction

This definition applies to:

account 2012-2017 line item 39.3 – lease of groundwater entitlement out of region

Approved transaction to transfer for a specified term a groundwater access entitlement from a legal entity located within the region's boundary to a legal entity located outside the region's boundary, with or without change in location of the abstraction

This definition applies to:

account 2012-2017 line item 4.1 – irrigation water supply system

Water in the irrigation water supply and collection system, including pipes, artificial channels and tanks. It includes water in off-channel water storages that has already been abstracted by the region's irrigation scheme, including dead storage capacity. It excludes water in private channels and storages, already abstracted from the scheme by individual irrigators.

This definition applies to:

account 2012-2017 line item 4.2 – irrigation scheme inter-region claim on water

Claims to water outside the region on behalf of the irrigation scheme. It includes claims resulting from:

allocations announced under entitlements to access a water resource located outside the region

• other agreements at allocation (retail) level.

It excludes claims resulting from:

• water traded into the region.

This definition applies to:

account 2012-2017 line item 4.3 – irrigation scheme claim on traded water

Claim to water resulting from water traded into the region on behalf of the irrigation scheme.

This definition applies to:

account 2012-2017 line item 4.4 – irrigation scheme claim on desalinated water

Claim to desalinated sea water on behalf of the irrigation scheme. It excludes claims on behalf of the surface water, which are reported in line item 1.7 – claim on desalinated water.

This definition applies to:

account 2012-2017 line item 4.5 – irrigation scheme claim on surface water

Claim to surface water within the region on behalf of the irrigation scheme. It includes volume of surface water allocation remaining held by the region's irrigation entities.

This definition applies to:

account 2012-2017 line item 4.6 – irrigation scheme claim on groundwater

Claim to groundwater within the region on behalf of the irrigation scheme. It includes volume of groundwater allocation remaining held by the region's irrigation entities.

This definition applies to:

account 2012-2017 line item 4.7 – other irrigation scheme claims on water

Claims to water on behalf of the irrigation scheme other than those included elsewhere.

This definition applies to:

account 2012-2017 line item 4.8 – other irrigation scheme water assets

Physical and non-physical irrigation scheme water assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 40.1 – groundwater allocation trade within region

Transfer of groundwater allocation between legal entities located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 40.2 – groundwater allocation trade into region

Transfer of groundwater allocation from a legal entity located outside the region's boundary to a legal entity located within the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 40.3 – groundwater allocation trade out of region

Transfer of groundwater allocation from a legal entity located within the region's boundary to a legal entity located outside the region's boundary, with or without change in location of the abstraction point.

This definition applies to:

account 2012-2017 line item 41.1 – precipitation on storages

All forms in which water falls on the region's water storages as rain, sleet, snow, hail, or drizzle. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 41.2 – groundwater discharge into storages

Groundwater discharge to the region's water storages. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 41.3 – runoff into storages

Water that rans off into the region's water storages. It includes river flow into the water storages and runoff flowing directly from the landscape into the storages. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 41.4 – transfer of water into storages

Water transferred via infrastructure into the water storages under any type of water access entitlement or other arrangement. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 41.5 – other storage increases

Inflows into water storages other than those defined elsewhere. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 42.1 – evaporation from storages

Movement of water from the region's water storages to the atmosphere (water vapour). The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 42.2 – groundwater recharge from storages

Infiltration from the water storages to the region's groundwater. It includes the deliberate recharge of groundwater from water storages. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 42.3 – leakage from storages

Leakage from the water storages to the soil. It excludes recharge to groundwater. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 42.4 – spillage from storages

Overflow from water storages via spillway and leakage through a dams' wall into downstream river. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 42.5 – releases from storages

Releases from water storages into a downstream river under any type of water access entitlement or other arrangement. It includes releases to provide environmental benefit and responses to calls on announced allocation. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 42.6 – diversions from storages

Diversions via infrastructure from water storages under any type of water access entitlement or other arrangement. It includes diversions within the region and out of the region. It excludes releases to a downstream river. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 42.7 – other storage decreases

Outflows from water storages other than those defined elsewhere. The value can include all or part of the water storages reported under line item 1.1 – storage.

This definition applies to:

account 2012-2017 line item 5.1 – surface water allocation remaining

Surface water allocation remaining on behalf of users other than the urban water system. It includes allocations remaining for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocations remaining for:

irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 5.3 – surface water allocation remaining – irrigation scheme).

This definition applies to:

account 2012-2017 line item 5.2 – surface water allocation remaining – urban water system

Surface water allocation remaining on behalf the urban water system. It includes allocations remaining for: • allocation holders located outside the region's boundary.

This definition applies to:

account 2012-2017 line item 5.3 – surface water allocation remaining – irrigation scheme

Surface water allocation remaining on behalf of irrigation schemes where those are identified as water asset of the water accounting region. It excludes allocations remaining for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 5.1 – surface water allocation remaining).

This definition applies to:

account 2012-2017 line item 5.4 – inter-region commitment on surface water

Commitment on the region's surface water to deliver water outside the region. It includes commitments resulting from:

• inter-government agreements at allocation (retail) level.

It excludes commitments resulting from:

• inter-government agreements to share water before it is allocated

• water traded out of the region

• water allocated in the region that is subsequently transferred out of the region. Such commitment is reported as line item 5.1, 5.2 or 5.3.

This definition applies to:

account 2012-2017 line item 5.5 – commitment on water traded out of the region

Commitment on the region's surface water to deliver water to another region as a result of trade between both regions.

This definition applies to:

account 2012-2017 line item 5.6 – other surface water liability

Surface water liability other than those defined elsewhere. It does not include rules-based obligation, such as a commitment to ensure minimum passing flows to a downstream region.

This definition applies to:

account 2012-2017 line item 6.1 – groundwater allocation remaining

Groundwater allocation remaining on behalf of users other than the urban water system. It includes allocations remaining for:

• private users and irrigation schemes where those are not identified as a water asset of the water accounting region

• allocation holders located outside the region's boundary.

It excludes allocations remaining for:

• irrigation schemes where those are identified as a water asset of the water accounting region (reported in line item 6.3 – groundwater allocation remaining – irrigation scheme).

This definition applies to:

account 2012-2017 line item 6.2 – groundwater allocation remaining – urban water system

Groundwater allocation remaining on behalf the urban water system. It includes allocations remaining for:

• allocation holders located outside the region's boundary.

This definition applies to:

account 2012-2017 line item 6.3 – groundwater allocation remaining – irrigation scheme

Groundwater allocation remaining on behalf of irrigation schemes where those are identified as a water asset of the water accounting region. It excludes allocations remaining for:

irrigation scheme where those are considered as users not part of the water assets of the water accounting region (reported in line item 6.1 – groundwater allocation remaining).

This definition applies to:

account 2012-2017 line item 6.4 – inter–region commitment on groundwater

Commitment on the region's groundwater to deliver water outside the region. It includes commitments resulting from:

• inter-government agreements at allocation (retail) level.

It excludes commitments resulting from:

• inter-government agreements to share water before it is allocated

• water traded out of the region

• water allocated in the region that is subsequently transferred out of the region. Such commitment is reported as line item 6.1- groundwater allocation remaining, 6.2–groundwater allocation remaining–urban water system or 6.3–groundwater allocation remaining–irrigation scheme.

This definition applies to:

account 2012-2017 line item 6.5 – commitment on traded out groundwater

Commitment on the region's groundwater to deliver water to another region as a result of trade between both regions.

This definition applies to:

account 2012-2017 line item 6.6 – other groundwater liability

Groundwater liability other than those defined elsewhere. It does not include rules-based obligation, such as a commitment to maintain groundwater at a certain level.

This definition applies to:

account 2012-2017 line item 7.1 – urban system commitment to provide water

Commitment, including result of water trade, on the region's urban water system to deliver water to urban water users or to other urban water systems outside the region. It excludes commitments in favour of the surface water, groundwater and irrigation scheme where those have been identified as water assets of the region.

This definition applies to:

account 2012-2017 line item 7.2 – other urban water liability

Urban water system liability other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 8.1 – irrigation scheme commitment to provide water

Commitment, including result of water trade, on the region's irrigation scheme to deliver water to users or to other irrigation schemes outside the region. It excludes commitments in favour of the surface water, groundwater and urban water system where those have been identified as water assets of the region.

This definition applies to:

account 2012-2017 line item 8.2 – other irrigation scheme liability

Irrigation scheme liability other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 9.1 – precipitation on surface water

All forms in which water falls on the region's surface water as rain, sleet, snow, hail, or drizzle.

This definition applies to:

account 2012-2017 line item 9.10 – direct discharge by user

Discharge of water by a user to the region's surface water done directly and not through the urban or irrigation collection systems. It includes discharge of water that has been self-abstracted or delivered through an urban or irrigation water supply system.

This definition applies to:

account 2012-2017 line item 9.11 – Delivery of water under inter – region agreement to surface water

Delivery of imported water to the region's surface water to service a prior claim recognised on behalf of the surface water. The prior claim may be an inter-basin agreement or an announced allocation held on a water resource located outside the region, but excludes water trade (see line item 9.12 – delivery of traded water to surface water).

This definition applies to:

account 2012-2017 line item 9.12 – delivery of traded water to surface water

Delivery of water into the region's surface water to service a prior claim resulting from water traded into the region (see line item 9.16 – increase of claim on water traded into the region).

This definition applies to:

account 2012-2017 line item 9.13 – delivery of claimed desalinated water to surface water

Delivery of desalinated sea water to the region's surface water to service a prior claim recognised on behalf of the surface water. It excludes delivery of desalinated sea water where no prior claim has been recognised (see line item 9.8 – delivery of desalinated water).

This definition applies to:

account 2012-2017 line item 9.14 – other delivery of water to surface water

Delivery of water to the region's surface water other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 9.15 – increase of inter-region surface water claim on water

Increase of claims to water outside the region on behalf of the surface water. It includes claims resulting from:

• an announced allocation held on a water resource located outside the region

• inter-government agreements at allocation (retail) level.

It excludes claims resulting from:

• inter-government agreements to share water before it is allocated

• water traded into the region

• contract to deliver desalinated sea water.

This definition applies to:

account 2012-2017 line item 9.16 – increase of surface water claim on water traded into the region

Increase of claim held on behalf of the surface water resulting from water traded into the region.

This definition applies to:

account 2012-2017 line item 9.17 – increase of surface water claim on desalinated water

Increase of claim to desalinated sea water held on behalf of the surface water. It excludes increase of claim held on behalf of the urban water system (see line item 11.17 – increase of urban claim on desalinated water).

This definition applies to:

account 2012-2017 line item 9.18 – increase of other surface water claims on water

Increase of claim held on behalf of the region's surface water other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 9.19 – other surface water increases

Increases of physical and non-physical surface water assets other than those defined elsewhere.

This definition applies to:

account 2012-2017 line item 9.2 – river inflow to region

River inflow that enters the region.

This definition applies to:

account 2012-2017 line item 9.3 – groundwater discharge

Groundwater discharge to the region's surface water.

This definition applies to:

account 2012-2017 line item 9.4 – runoff to surface water

Runoff from landscape to the region's surface water due to rainfall or irrigation.

This definition applies to:

account 2012-2017 line item 9.5 – point return from irrigation scheme

Point discharge from irrigation scheme to the region's surface water. It includes overflows from irrigation scheme water supply channels and discharge of used irrigation water from irrigation scheme collection systems.

This definition applies to:

account 2012-2017 line item 9.6 – overbank flood return to river channel

Return of flood waters from the flood plains. It excludes flood waters returning from seasonally connected wetlands and other surface water bodies.

This definition applies to:

account 2012-2017 line item 9.7 – delivery of water from outside region

Delivery of imported water to the region's surface water where no prior claim has been recognised on behalf of the surface water.

This definition applies to:

account 2012-2017 line item 9.8 – delivery of desalinated water

Delivery of desalinated sea water to the region's surface water where no prior claim has been recognised on behalf of the surface water.

This definition applies to:

account 2012-2017 line item 9.9 – discharge from urban water system

Discharge from urban water systems to the region's surface water. It includes discharge of non-potable, potable, treated wastewater and recycled water. It includes pump back or transfer back of water to surface water for the purpose of storage and releases to meet environmental requirements. It excludes pump back or transfer of water to off-channel water storages considered part of the urban water system (see line item 3.1 – urban water supply system).

This definition applies to:

accountability

Includes but is not limited to, responsibilities under legislation, regulations or operational plans. It also means the responsibility to provide information that enable users to make informed judgements about the management of water resources.

This definition applies to:

accrual basis of water accounting

Recording and reporting the effects of transactions, transformations and other events when the decision or commitments that give rise to them occur. This may not necessarily be the time at which water is physically transacted, transferred or transformed. Accrual water accounting ensures that transactions, transformations and other events are recorded in and reported in the reporting periods to which they relate.

This definition applies to:

acoustic Doppler current meter

A point velocity meter that uses two acoustic transducers, each acting as transmitters and receivers for the purpose of water velocity measurement, when undertaking a discrete discharge measurement (gauging).

This definition applies to:

acoustic Doppler current profiler

A family of acoustic based instrumentation used to measure water velocities and water depths during a discrete discharge measurement (gauging).

This definition applies to:

acoustic Doppler velocimeter

A point velocity meter that uses a single acoustic transducer as a transmitter and separate dedicated transducers as receivers for the purpose of water velocity measurement, when undertaking a discrete discharge measurement (gauging).

This definition applies to:

acoustic Doppler velocity meter

A family of acoustic based instrumentation used for continuous in-situ measurement of water velocities.

This definition applies to:

ACT

Australian Capital Territory

This definition applies to:

ADC

acoustic Doppler current meter

A point velocity meter that uses two acoustic transducers, each acting as transmitters and receivers for the purpose of water velocity measurement, when undertaking a discrete discharge measurement (gauging).

This definition applies to:

ADCP

acoustic Doppler current profiler

A family of acoustic based instrumentation used to measure water velocities and water depths during a discrete discharge measurement (gauging).

This definition applies to:

adjusting event after the reporting period

An event that occurs between the end of the reporting period and the date when the Accountability Statement is signed that provides evidence of conditions that existed at the end of the reporting period.

This definition applies to:

adjustment and forfeiture of allocation

Adjustments made to allocation carryover. For example, amounts written off as a result of the operation of rules or upon agreement between the allocation owner and the body responsible for managing water in the region.

This definition applies to:

adopted middle thread distance

The distance in kilometres, measured along the middle of a watercourse that a specific point in the watercourse is from the watercourse’s mouth or junction with the main watercourse.

This definition applies to:

ADV

acoustic Doppler velocimeter

A point velocity meter that uses a single acoustic transducer as a transmitter and separate dedicated transducers as receivers for the purpose of water velocity measurement, when undertaking a discrete discharge measurement (gauging).

This definition applies to:

ADVM

acoustic Doppler velocity meter

A family of acoustic based instrumentation used for continuous in-situ measurement of water velocities.

This definition applies to:

AEP

annual exceedance probability

The probability that a given rainfall total accumulated over a given duration will be exceeded in any one year.

Related: average recurrence interval

aggregated volume

The sum of volumes held in water storages that are within a region or associated with a city or system. Each water storage can contribute up to its accessible storage capacity to the aggregated volume. In some cases only a portion of the water in a storage is shared with a city or system.

Related FAQ

Synonym: volume

This definition applies to:

AHD

Australian Height Datum

The datum that sets mean sea level as zero elevation. Mean sea level was determined from observations recorded by 30 tide gauges around the coast of the Australian continent for the period 1966–1968.

See Geoscience Australia for further information.

This definition applies to:

AHGF

Australian Hydrological Geospatial Fabric (Geofabric)

Source: Geofabric Product Guide V2.0

Related: Geofabric

This definition applies to:

AIFS

Australian Integrated Forecast System

This definition applies to:

allocation

There are multiple contexts for this item

Context 1

The specific volume of water allocated to water access entitlements in a given water year or allocated as specified within a water resource plan.

Synonym: water allocation

This definition applies to:

Context 2

The specific volume of water allocated to water access entitlements in a given season, given accounting period, defined according to rules established in the relevant water plan.

This definition applies to:

allocation announcement

There are multiple contexts for this item

Context 1

Announcement of water allocations arising due to seasonal determinations of surface water to be available under water access entitlements.

This definition applies to:

Context 2

Announcement of water allocations arising due to seasonal determinations of water to be available under water access entitlements.

This definition applies to:

allocation carryover

There are multiple contexts for this item

Context 1

Water allocated during the water year of an entitlement that is yet to be accessed, taken or delivered at the end of the water year and is able to be carried over to the next water year. Where the water year coincides with the National Water Account reporting period allocation carryover equates to allocation remaining.

Related: allocation remaining

This definition applies to:

Context 2

Water allocated during the water year of an entitlement that is yet to be accessed, abstracted or delivered at the end of the water year and is able to be carried over to the next water year.

In the Bureau the National Water Account, where the water year coincides with its reporting period allocation carryover equates to allocation remaining.

Related: allocation remaining

This definition applies to:

allocation diversion

There are multiple contexts for this item

Context 1

The volume of surface water outflows delivered or otherwise taken to settle allocation or claim liabilities. When used as a high level term can also include the volume of groundwater abstracted to settle allocation liabilities.

This definition applies to:

Context 2

The volume of surface water abstracted to settle an allocation or other claim on the surface water.

This definition applies to:

allocation extraction

The volume of groundwater abstracted to settle an allocation or other claim on the groundwater.

This definition applies to:

allocation remaining

There are multiple contexts for this item

Context 1

Water allocated in a reporting period (or remaining from the previous reporting period) that is yet to be accessed, taken or delivered at the end of the reporting period and is not forfeited. Where the National Water Account reporting period coincides with the entitlement’s water year, allocation remaining equates to allocation carryover.

Related: allocation carryover

This definition applies to:

Context 2

Water allocated in a reporting period (or remaining from the previous reporting period) that is yet to be accessed, abstracted or delivered at the end of the reporting period and is not forfeited. Where the National Water Account reporting period coincides with the entitlement’s water year, allocation remaining equates to allocation carryover.

Related: allocation carryover

This definition applies to:

allocation volume

The specific volume of water allocated to water access entitlements.

This definition applies to:

alluvial

Relating to a deposit of sand, mud, etc., formed by flowing water.

Source: © Macquarie Dictionary Fifth Edition, 2009, Macquarie Dictionary Publishers.

This definition applies to:

alluvial plain

The plain or flat land area adjacent to a stream or river (or the prior course of a stream or river) composed of unconsolidated sedimentary deposits (alluvium) subject to periodic inundation by the stream (either now or in the past).

Related: floodplain

This definition applies to:

alluvial valley

A valley filled with alluvial stream deposits.

Source: © McGraw-Hill,1994, Dictionary of Scientific and Technical Terms, Editor: Parker, SP, 5th edition, McGraw-Hill Professional, New York.

This definition applies to:

alluvium

Loose, unconsolidated (not cemented together into a solid rock), soil or sediments (from sands to large boulders), eroded, deposited and reshaped by water in some form in a non-marine setting.

This definition applies to:

AMTD

Adopted Middle Thread Distance

This definition applies to:

ANCOLD

Australian National Committee on Large Dams

This definition applies to:

announced allocation

A number, expressed as a percentage, which is used to determine the maximum volume of water that may be accessed in a water year.

This definition applies to:

annual exceedance probability

The probability that a given rainfall total accumulated over a given duration will be exceeded in any one year.

Related: average recurrence interval

This definition applies to:

anomaly

The deviation of a measurable unit, (e.g, temperature or precipitation) from the long-term average in a given region over a specified period.

This definition applies to:

antecedent soil moisture

Water present in the soil prior to a rainfall event

Related: soil moisture

This definition applies to:

ANU

Australian National University

Related: ANUDEM

This definition applies to:

ANUDEM

A computer program developed by the ANU for processing data into a digital elevation model.

Source: Geofabric Product Guide V2.0

Related: ANU

This definition applies to:

ANUDEM Streams

Topologically connected flow direction streamlines developed by ANU using ANUDEM.

Source: Geofabric Product Guide V2.0

Related:

This definition applies to:

ANZLIC

Australia New Zealand Land Information Council

This definition applies to:

aquatic GDE

A GDE which uses groundwater after it has been discharged to the surface. This includes all groundwater-fed surface water bodies, such as rivers, wetlands, lakes and springs.

This definition refers only to the aquatic (inundated) component of a system, and therefore excludes any vegetation which may fringe a surface water body.

Source: Eamus, D., Froend, R., Loomes, R., Hose, G., Murray, B., (2006). A functional methodology for determining the groundwater regime needed to maintain the health of groundwater-dependent vegetation, Australian Journal of Botany, 2006, 54, 97–114, 2006.

This definition applies to:

Aquaveo

A software development company based in the United States that builds ArcHydro for groundwater tools.

Related: ArcHydro for groundwater

This definition applies to:

aquifer

There are multiple contexts for this item

Context 1

A geological formation, group of formations or part of a formation; able to receive, store and transmit significant quantities of water.

This definition applies to:

Context 2

An underground layer of saturated rock, sand or gravel that absorbs water and allows it to pass freely through pore spaces.

Source: Modified from Australian and New Zealand Guidelines for Fresh and Marine Water Quality (2000)

This definition applies to:

aquitard

A geological formation that may contain groundwater but is not capable of transmitting significant quantities of it under normal hydraulic gradients. May function as a confining bed.

This definition applies to:

ArcGIS

A range of software programs developed by ESRI for spatial data analysis, processing and storage.

Related: Geographic Information System

This definition applies to:

ArcHydro

A data model and tools published by ESRI for analysis of hydrological data.

This definition applies to:

ArcHydro for groundwater

A data model published by ESRI and tools developed by Aquaveo for analysis of hydrogeological data.

Related: Aquaveo

This definition applies to:

ARI

average recurrence interval

The average or expected value of the periods between exceedances of a given rainfall total accumulated over a given duration. It is implicit in this definition that the periods between exceedances are generally random.

ARMA

autoregressive moving average

A combined process of statistical time series analysis in terms of two polynomials, one for the auto-regression and the second for the moving-average.

This definition applies to:

ARR

Australian rainfall and runoff

This definition applies to:

artesian basin

A geological structural feature or combination of such features in which water is confined under pressure.

Source: © Macquarie Dictionary Fifth Edition, 2009, Macquarie Dictionary Publishers

This definition applies to:

artificial control

A hydraulic structure (e.g. weir, flume or gate) installed in an open channel where in most cases the discharge can be derived from the measured upstream water level.

Note: The structure is an artificial reduction of the cross-sectional area in the channel, where part of the upstream total head is converted into kinetic energy used to obtain critical streamflow.

This definition applies to:

ASCII

American Standard Code for Information Interchange. A character-encoding that represents text in computers.

This definition applies to:

ASRIS

Australian Soil Resource Information System

This definition applies to:

assurance

To provide independent attestation that the reports have been prepared in accordance with approved water accounting standards and other approved pronouncements governing the content of the reports and are consistent with the concepts in the Water Accounting Conceptual Framework. Assurance reduces the risk that the information provided is incorrect.

This definition applies to:

atmosphere

A physical feature that is the mixture of gases surrounding the planet.

Source: Bureau glossary

This definition applies to:

AusHydro

Flow directed and topological connected surface hydrology data derived from Geoscience Australia GEODATA series.

Source: Geofabric Product Guide V2.0

Related:

This definition applies to:

Australian height datum

The datum that sets mean sea level as zero elevation. Mean sea level was determined from observations recorded by 30 tide gauges around the coast of the Australian continent for the period 1966–1968.

See Geoscience Australia for further information.

This definition applies to:

Australian Hydrological Geospatial Fabric

The Australian Hydrological Geospatial Fabric (Geofabric) is a specialised Geographic Information System (GIS). It identifies and registers the spatial relationships between important hydrological features such as watercourses, water bodies, canals, aquifers, monitoring points and catchments.

Source: Geofabric website

Related:

This definition applies to:

Australian water access entitlement

A perpetual or ongoing entitlement, by or under a law of a State, to exclusive access to a share of the water resources of a water resource plan area or other water management area.

Source: Water Regulations 2008 Schedule 3 Part 1. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Australian water allocation

The specific volume of water allocated to an Australian water access entitlement in a given water accounting period.

Source: Water Regulations 2008 Schedule 3 Part 1. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Australian Water Availability Project

An operational data assimilation and modelling project that monitors the state and trend of the Australian terrestrial water balance at a resolution of 5 km. Using both measurements and modelling, the past history and present state of soil moisture are determined. The water fluxes that contribute to changes in soil moisture are incorporated in this project. These water fluxes include rainfall, transpiration, soil evaporation, surface runoff and deep drainage.

Source: Australian Water Availability Project

This definition applies to:

Australian Water Resources Council

Established in 1962, the Australian Water Resources Council (AWRC) was set up by the Commonwealth and Sate Governments as a non-statutory body. The council existed into the 1980s.

Source: National Library of Australia

This definition applies to:

autocorrelation function

Describes the correlation between values of that process as a function of the time separation between them.

This definition applies to:

autoregressive moving average

A combined process of statistical time series analysis in terms of two polynomials, one for the auto-regression and the second for the moving-average.

This definition applies to:

available water

Water potentially available for consumptive or environmental use.

This definition applies to:

average recurrence interval

The average or expected value of the periods between exceedances of a given rainfall total accumulated over a given duration. It is implicit in this definition that the periods between exceedances are generally random.

Related: annual exceedance probability

This definition applies to:

AWAP

Australian water availability project

An operational data assimilation and modelling project that monitors the state and trend of the Australian terrestrial water balance at a resolution of 5 km. Using both measurements and modelling, the past history and present state of soil moisture are determined. The water fluxes that contribute to changes in soil moisture are incorporated in this project. These water fluxes include rainfall, transpiration, soil evaporation, surface runoff and deep drainage.

Source: Australian Water Availability Project

This definition applies to:

AWRA

Australian Water Resources Assessment

This definition applies to:

AWRA-L

A part of the AWRA Modelling System developed by CSIRO under the WIRADA alliance with the Bureau that represents landscape water balance.

This definition applies to:

AWRC

Australian Water Resources Council

This definition applies to:

AWRIS

Australian Water Resources Information System

This definition applies to:

backscatter

The deflection of waves or particles through angles greater than 90 degrees by an obstacle.

Source: © Macquarie Dictionary Fourth Edition, 2005, Macquarie Dictionary Publishers

This definition applies to:

backwater

Water backed-up or retarded in its course as compared with its normal or natural condition of flow.

Source: USGS, viewed 2 October 2018.

This definition applies to:

bare ground

Land not covered by vegetation that does not fall into any other land use/cover category. It includes eroded areas and construction sites.

This definition applies to:

baseflow

The component of streamflow supplied by groundwater discharge.

This definition applies to:

basin

A tract of country, generally larger catchment areas, drained by a river and its tributaries.

This definition applies to:

basinal aquifer

A subsurface porous and permeable layer present in a basin. A basin is a concave or syncline-like bedrock structure filled or partially filled with sediments.

Related: aquifer

This definition applies to:

BATEA

Bayesian total error analysis

A generalised Bayesian framework for environmental model calibration and validation. BATEA permits the use of explicit probabilistic errors models which are used to describe the uncertainty associated with observed data, notably, in forcing inputs and outputs, e.g. rainfall and discharge data.

This definition applies to:

Bayesian

Refers to methods in probability or statistics, e.g. Bayesian Joint Probability, named after Thomas Bayes (c. 1702-61), who provided the first mathematical treatment of Bayesian inference.

Source: S E Fienberg, 2006, When Did Bayesian Inference Become "Bayesian"?, Bayesian Analysis, 1 (1), 1-40.

Related: Bayesian total error analysis

This definition applies to:

Bayesian joint probability (BJP)

A statistical modelling method to produce predictions of seasonal streamflows. Application of the BJP method to streamflow forecasting was developed by the CSIRO.

See the Seasonal Streamflow Forecast Research papers section for more information.

Alt text

This definition applies to:

Bayesian total error analysis

A generalised Bayesian framework for environmental model calibration and validation. BATEA permits the use of explicit probabilistic error models which are used to describe the uncertainty associated with observed data, notably, in forcing inputs and outputs, e.g. rainfall and discharge data.

Source: G Kuczera, D Kavetski, S Franks, M Thyer 2006, Towards a Bayesian total error analysis of conceptual rainfall-runoff models: Characterising model error using storm-dependent parameters, Journal of Hydrology, 331:1-2,161-177.

Related: Bayesian

This definition applies to:

bias error

A measurement error that remains constant in magnitude for all observations; a kind of systematic error.

Source: McGraw-Hill Dictionary of Scientific & Technical Terms sixth edition, Copyright © 2003, McGraw-Hill Education

This definition applies to:

BJP

Bayesian joint probability

A modelling system that uses statistical methods to produce predictions of seasonal streamflows. BJP was developed by the Commonwealth Scientific and Industrial Research Organisation (CSIRO). See the Seasonal Streamflow Forecast Research papers section for more information.

Alt text

blanking distance

The distance from the transducers of an ADCP in which no measurement is taken. Also known as the “blank”.

This definition applies to:

blue line

The typical depiction of a river or stream in a cartographic product.

This definition applies to:

bootstrapping

A type of resampling where large numbers of smaller samples of the same size are repeatedly drawn, with replacement, from a single original sample. This technique allows estimation of the sampling distribution of almost any statistic using random sampling methods.

Source: Derived from V Fortin, J Bernier, B Bobee 1997, Simulation, Bayes, and bootstrap in statistical hydrology, WATER RESOUCES RESEARCH, VOL. 33, No. 3

For example, in the 7-day ensemble streamflow forecasting system, forecast skill is computed from 200 samples. Each sample is comprised of approximately three years of daily streamflow observations/forecast pairs generated by randomly drawing monthly sub-samples repeatedly from an original dataset of three years of daily streamflow observations/forecast pairs.

This definition applies to:

bore

A hole drilled in the ground, a well or any other excavation used to access groundwater. May be used for observation of groundwater (including water level, pressure or quality).

This definition applies to:

bore feature

Point feature class that represents the location of a bore and associated attributes. Multiple independently screened bore pipes are regarded as separate bore features.

This definition applies to:

bore line

A three dimensional line feature class that represents the hydrogeologic units along a borehole.

This definition applies to:

bore log

A table with rock or sediment types classified into hydrogeologic units along a borehole.

Synonym: hydrostratigraphy log

This definition applies to:

bore pipe

An independently screened inlet to a bore that can be pumped or monitored separately. A bore can have multiple pipes, each having one or more screens.

Alt text

This definition applies to:

bore screen

The construction component of a bore that allows groundwater to enter e.g. casing with slots or holes.

Alt text

Related: construction log

This definition applies to:

bottom tracking

Acoustic method used to measure boat speed and direction by computing the Doppler shift of sound reflected from the stream bed relative to the ADCP.

This definition applies to:

broadacre

Farms or industries engaged in the production of grains, oilseeds and other crops (especially wheat, barley, peas, sorghum, maize, hemp, safflower and sunflower), or the grazing of livestock for meat or wool, on a large scale.

Source: © Organisation for Ecomonic Co-operation and Development, Glossary of Statistical Terms, Viewed 5 October 2011, http://stats.oecd.org/glossary/detail.asp?ID=235

This definition applies to:

BT

bottom tracking

Acoustic method used to measure boat speed and direction by computing the Doppler shift of sound reflected from the stream bed relative to the ADCP.

This definition applies to:

bulk diversion and extraction

The volume of water diverted from streams and storages (surface water) or extracted from bores (groundwater) by water providers for various uses.

This definition applies to:

bulk water

Water supplied by a water provider to another water provider.

This definition applies to:

bulk water access entitlement

A water access entitlement allowing an infrastructure operator to access, take and hold water for the supply of water to another person.

This definition applies to:

bulk water charge

A charge payable for the storage of water for, and the delivery of water to, any of the following:

(a) infrastructure operators;

(b) other operators of reticulated water systems;

(c) other persons prescribed by the regulations for the purposes of this paragraph.

In the Regulation 1.05A, a person is prescribed for the above paragraph (c) if:

(a) the person diverts water directly from a watercourse for the person’s use, including for one of the following purposes:

(i) agricultural purposes;

(ii) industrial purposes;

(iii) irrigation;

(iv) stock and domestic water use; and

(b) the water is made available through a bulk water service.

Source: Derived from Water Act 2007 Part 1 Section 4 and Water Regulations 2008 Regulation 1.05A, at 8 Febraury 2019. For the latest information on Australian Government law please go to Federal Register of Legislation.

This definition applies to:

bulk water supplier

An entity who imposes a bulk water charge for a bulk water service.

Source: Water Regulations 2008 Regulation 4.01A. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

bundled right

The aggregation of individual rights into a single right. These might include but are not limited to: land property title, water access entitlement, water allocations, water use rights, delivery rights, irrigation rights and works approvals.

Equivalent: water market equivalent terms

This definition applies to:

Bureau

Bureau of Meteorology

This definition applies to:

calendar month

A period commencing at the beginning of a day of one of the 12 months of the year and ending immediately before the beginning of the corresponding day of the next month or, if there is no such corresponding day, ending at the expiration of the next month.

Source: Acts Interpretation Act 1901 Part V 22

This definition applies to:

calibration

The process of comparing the response of a measuring device with a calibrator or a measuring standard, of known accuracy, over the measurement range.

Note: The comparison may result in no significant error being noted on the device under test, a significant error being noted but no adjustment made, or an adjustment made to correct the error to an acceptable level either by physical adjustment or by establishing a relationship for obtaining a result from the primary measured value.

Source: derived from AS 3778.1—2009 Clause 7.17. © Standards Australia Limited. Copied by the Australian Government Bureau of Meteorology with the permission of Standards Australia and Standards New Zealand under Licence 1901-c052.

This definition applies to:

capacity

The volume of water that a water storage can hold between the minimum supply level and full supply level; equal to the total storage capacity excluding the dead storage capacity. It is the sum of this capacity that is reported for a collection of water storages. See the water storage diagram for more information.

Synonym: accessible storage capacity

This definition applies to:

capillary zone

The zone of soil moisture above the watertable where water is drawn upwards by capillary tension in which the water is at less than atmospheric pressure.

Source: Richardson, S., et al., (2011). Australian groundwater-dependent ecosystem toolbox part 1: assessment framework, Waterlines report, National Water Commission, Canberra

This definition applies to:

carryover

The option to hold in storage a portion of unused seasonal allocations for use at a later date.

This definition applies to:

casing

The construction component that lines a bore and provides the conduit from the water-producing zone to the surface.

Related: construction log

This definition applies to:

catchment

The land area draining to a point of interest, such as a water storage or monitoring site on a watercourse.

Related:

This definition applies to:

catchment area

The extent of land where water from precipitation drains into the water storage.

Related: catchment

This definition applies to:

Category 1 water information

Surface water resource information

Related FAQ: What does Category 1 information include?

Source: Water Regulations 2008 Schedule 3 Part 2. For the latest information on Australian Government law please go to Federal Register of Legislation

Related:

This definition applies to:

Category 11 water information

Water information for flood warning purposes

Related FAQ: What does Category 11 information include?

Source: Water Regulations 2008 Schedule 3 Part 11. For the latest information on Australian Government law please go to Federal Register of Legislation

Related:

This definition applies to:

Category 2 water information

Ground water resource information

Related FAQ: What does Category 2 information include?

Source: Water Regulations 2008 Schedule 3 Part 3. For the latest information on Australian Government law please go to Federal Register of Legislation

Related:

This definition applies to:

Category 3 water information

Water storage information

Related FAQ: What does Category 3 information include?

Source: Water Regulations 2008 Schedule 3 Part 4. For the latest information on Australian Government law please go to Federal Register of Legislation

Related:

This definition applies to:

Category 4 water information

Meteorological information

Related FAQ: What does Category 4 information include?

Source: Water Regulations 2008 Schedule 3 Part 5. For the latest information on Australian Government law please go to Federal Register of Legislation

Related:

This definition applies to:

Category 5 water information

Water use information

Related FAQ: What does Category 5 information include?

Source: Water Regulations 2008 Schedule 3 Part 6. For the latest information on Australian Government law please go to Federal Register of Legislation

Related:

This definition applies to:

Category 6 water information

Information about water rights, allocations and trades

Related FAQ: What does Category 6 information include?

Source: Water Regulations 2008 Schedule 3 Part 7. For the latest information on Australian Government law please go to Federal Register of Legislation

Related:

This definition applies to:

Category 7 water information

Information about urban water management

Related FAQ: What does Category 7 information include?

Source: Water Regulations 2008 Schedule 3 Part 8. For the latest information on Australian Government law please go to Federal Register of Legislation

Related:

This definition applies to:

Category 8 water information

Information about water restrictions

Related FAQ: What does Category 8 information include?

Source: Water Regulations 2008 Schedule 3 Part 9. For the latest information on Australian Government law please go to Federal Register of Legislation

Related: subcategory 8a water information

This definition applies to:

Category 9 water information

Water quality information

Related FAQ: What does Category 9 information include?

Source: Water Regulations 2008 Schedule 3 Part 10. For the latest information on Australian Government law please go to Federal Register of Legislation

Related:

This definition applies to:

Category A person

A person specified as a Category A person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category A include?

Source: Water Regulations 2008 Regulation 1.03. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Category B person

A person specified as a Category B person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category B include?

Source: Water Regulations 2008 Regulation 1.03. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Category C person

A person specified as a Category C person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category C include?

Source: Water Regulations 2008 Regulation 1.03. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Category D person

A person specified as a Category D person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category D include?

Source: Water Regulations 2008 Regulation 1.03. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Category E person

A person specified as a Category E person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category E include?

Source: Water Regulations 2008 Regulation 1.03.For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Category F person

A person specified as a Category F person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category F include?

Source: Water Regulations 2008 Regulation 1.03. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Category G person

A person specified as a Category G person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category G include?

Source: Water Regulations 2008 Regulation 1.03. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Category H person

A person specified as a Category H person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category H include?

Source: Water Regulations 2008 Regulation 1.03. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Category K person

A person specified as a Category K person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category K include?

Source: Water Regulations 2008 Regulation 1.03. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Category L person

A person specified as a Category L person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category L include?

Source: Water Regulations 2008 Subregulation 1.03(1). For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Category M person

A person specified as a Category M person in the document titled Persons and Classes of Persons

Related FAQ: Who/what are persons?, What does Category M include?

Source: Water Regulations 2008 Subregulation 1.03(1). For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

CDIRS

computerised design IFD rainfall system

This definition applies to:

cease to flow

The level or physical location at which a stream stops flowing. The lowest point in the low flow control.

This definition applies to:

change in net water assets

There are multiple contexts for this item

Context 1

Increases or decreases in net water assets for the water report entity from one reporting date to the next.

This definition applies to:

Context 2

The change in net water assets for the region from one reporting date to the next.

This definition applies to:

change in net water storage

The change in net water storage for the region from one report date to the next.

This definition applies to:

change in water assets

There are multiple contexts for this item

Context 1

Increases or decreases in the water report entity’s water assets from one reporting date to the next.

This definition applies to:

Context 2

Increases or decreases in the region’s water assets from one reporting date to the next.

This definition applies to:

change in water liabilities

There are multiple contexts for this item

Context 1

Increases or decreases in the water report entity’s water liabilities from one reporting date to the next.

This definition applies to:

Context 2

Increases or decreases in the region’s water liabilities from one reporting date to the next.

This definition applies to:

change in water storage

Increases or decreases in water storage for a water report entity from one reporting date to the next.

This definition applies to:

channel

An artificial or constructed waterway designed to convey water. Often described as open channels to distinguish then from pipes, channels can be categorised as: main (or major) channels whose primary purpose is to convey bulk water from headworks storage or river diversion points into the distribution system; or distribution channels whose primary purpose is to deliver water from main channels to individual farms. The term canal may sometimes be used for main channels that are used for other purposes than just conveyance of bulk water, such as recreation or transport.

This definition applies to:

chromosols

Soils with an abrupt increase in clay content down the soil profile. Occur in all parts of Australia. Common in the cereal belt of southern New South Wales and Victoria.

Source: R F Isbell, 1996, The Australian Soil Classification, CSIRO Publishing, Melbourne.

This definition applies to:

claims to water

A right to water or an interest or claim associated with a right to water.

This definition applies to:

claims to water decreases

Adjustments to claims to water in the region. For example, amounts written off as a result of the operation of rules or upon agreement between the relevant parties.

This definition applies to:

climate

The average long-term weather conditions in a particular area. See the Climate Glossary webpage for more information.

This definition applies to:

climatic condition

The condition of the climate (e.g. rainfall, temperature, humidity) over a particular period such as a year or a month.

This definition applies to:

closing net water assets

Net water assets at the end of the reporting period.

Related: net water assets

This definition applies to:

closing water storage

There are multiple contexts for this item

Context 1

The total water storage in water assets in the region at the end of the reporting period.

This definition applies to:

Context 2

The total water storage for a water report entity at the reporting date.

This definition applies to:

coefficient of variation

A normalized measure of dispersion of a probability distribution. The coefficient of variation is the ratio of the standard deviation to the mean.

Source: Business Dictionary, viewed 6 August 2013.

This definition applies to:

commercial water

The total amount of metered and estimated non-metered, potable and non-potable, water supplied to commercial properties.

This definition applies to:

compliance

Adherence to relevant externally-imposed requirements, or with broader notions of best practice relevant to water reporting entities, such as statutory requirements, regulations, rules, ordinances, or directives, in respect of which non-compliance may have, or may have had, an economic, environmental or social effect.

This definition applies to:

conceptual model

There are multiple contexts for this item

Context 1

A platform independent model for showing the entities and relationship between the features of interest generally described using UML.

Source: Geofabric Product Guide V2.0

Related: UML

This definition applies to:

Context 2

Documentation of a conceptual understanding of the location of GDEs and interaction between ecosystems and groundwater.

Source: Richardson, S., et al., (2011). Australian groundwater-dependent ecosystem toolbox part 1: assessment framework, Waterlines report, National Water Commission, Canberra

This definition applies to:

confined aquifer

An aquifer overlain by a confining bed. The confining bed has a significantly lower hydraulic conductivity than the aquifer. Typically, groundwater in a confined aquifer is under pressure significantly greater than atmospheric pressure.

This definition applies to:

connected surface water

All the surface water bodies connected to the river channel network, with the exception of the off-channel but connected man-made water structures.

This definition applies to:

connected surface water decreases

Decreases in connected surface water due to natural processes or diversion of water.

This definition applies to:

connected surface water increases

Increases in connected surface water due to natural processes or return of water.

This definition applies to:

connected surface water inflows

Volume of physical inflows to connected surface water during the reporting period; from outside the region or from other stores.

This definition applies to:

connected surface water outflows

Volume of physical outflows from connected surface water during the reporting period; to outside the region or to other stores.

This definition applies to:

connected surface water store

Comprises all the surface water bodies connected, either seasonally or perennially, to the river channel network that are administered by the jurisdictions. Also includes any other surface water body which contains water not yet ‘abstracted’, such as storages managed by organisations to provide water to urban centres.

This definition applies to:

construction line

A three dimensional line feature class that represents the construction information (e.g. casing and bore screen) along a borehole

This definition applies to:

construction log

A table with bore construction information along a borehole (e.g. casing and bore screen).

This definition applies to:

constructive obligation

An obligation that derives from actions of the management of a water report entity whereby:

a) an established pattern of past practice, published policies or sufficiently specific current statement means that the management of the water report entity has indicated to other parties that it will accept certain responsibilities; and

b) as a result, a valid expectation has been created on the part of those other parties that the management of the water report entity will discharge those responsibilities.

This definition applies to:

consumptive pool

The amount of a water resource that can be made available for consumptive use in a particular water resource plan area under the rules of the water resource plan for that water resource plan area.

This definition applies to:

consumptive use

Use of water for private benefit consumptive purposes including irrigation, industry, urban and stock and domestic use.

This definition applies to:

contingent water asset

A possible water asset that arises from past events and whose existence will be confirmed only by the occurrence or non-occurrence of one or more uncertain future events not wholly within the control of the management of the water report entity.

This definition applies to:

contingent water liability

A possible obligation that arises from past events and whose existence will be confirmed only by the occurrence or non-occurrence of one or more uncertain future events not wholly within the control of the management of the water report entity.

This definition applies to:

continuous monitoring

Collecting repeated measurements of a parameter over time, typically using automatic sensing and recording instruments.

This definition applies to:

continuous ranked probability score (CRPS)

A measure of forecast accuracy score calculated in the original measurement space. Both the forecast and the observation are converted to cumulative density functions. In the case of the observation, this is a step function. The squared area between the two functions is the single CRPS value, which is averaged across all forecasts. Alt text

This definition applies to:

contracted catchment

A set of low level catchments derived from the nine second digital elevation model (DEM) with a contracted node at the outflow point.

Source: Geofabric Product Guide V2.0

Related:

This definition applies to:

contracted node

An entity within the Geofabric that represents a logical feature in the landscape such as the confluence of two major rivers or a significant monitoring location. A contracted node has a unique and persistent identifier.

This definition applies to:

control

Physical properties of a cross-section or a reach of an open channel, either natural or artificial, that govern the relation between stage and discharge at a location in the open channel.

Source: AS3778.1—2009 Clause 1.91. © Standards Australia Limited. Copied by the Australian Government Bureau of Meteorology with the permission of Standards Australia and Standards New Zealand under Licence 1901-c052.

This definition applies to:

conveyance water

Water required primarily to operate regulated rivers and utility supply networks to enable the delivery of water.

This definition applies to:

Creative Commons

An international non-profit organisation that provides free licences and tools that copyright owners can use to allow others to share, reuse and remix their material, legally.

Source: Creative Commons Australia

This definition applies to:

cross-section

The section of a stream is the section normal to the mean direction of flow bounded by the free surface and wetted perimeter of the stream.

Source: AS3778.1—2009 Clause 1.58. © Standards Australia Limited. Copied by the Australian Government Bureau of Meteorology with the permission of Standards Australia and Standards New Zealand under Licence 1901-c052.

This definition applies to:

CSIRO

Commonwealth Scientific and Industrial Research Organisation

This definition applies to:

CSV

comma separated values.

A computer text file where numbers are written as characters separated by commas.

This definition applies to:

CTF

cease to flow

The level or physical location at which a stream stops flowing, the lowest point in the low flow control.

This definition applies to:

cultural basic right

Right that allows diversion of water for anyone who holds native title with respect to water, as determined under the Native Title Act 1993 (Commonwealth).

This definition applies to:

cumecs

Cubic metres per second (m³/s). International System of Units (SI Units) of measure for instantaneous discharge (rate unit).

This definition applies to:

current meter

Instrument for measuring water velocity.

Source: AS3778.1—2009 Clause 2.56. © Standards Australia Limited. Copied by the Australian Government Bureau of Meteorology with the permission of Standards Australia and Standards New Zealand under Licence 1901-c052.

This definition applies to:

CV

coefficient of variation

A normalized measure of dispersion of a probability distribution. The coefficient of variation is the ratio of the standard deviation to the mean.

This definition applies to:

D8-9S

GEODATA 9 Second Flow Direction Grid derived from DEM-9S.

A grid describing the principal directions of surface drainage across the whole of Australia.

Source: Geoscience Australia

Related:

This definition applies to:

dam

A barrier to obstruct the flow of water, especially one of earth, masonry, etc., built across a stream.

This definition applies to:

data ingestion

The process of receiving, processing (decoding) and storing data collected from sites in data-user and data-provider systems.

This definition applies to:

data management system

The software and hardware used to manage the storage of and access to information held in a set of related files.

Source: Water Regulations 2008 Regulation 1.03. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

data owner

An organisation responsible for managing the collection of environmental and water observations (data) and information about these measurements (metadata). The designated owner may differ from the data provider.

This definition applies to:

data provider

An organisation that provides data and metadata to the Bureau. The designated data provider may differ from the data owner.

This definition applies to:

date reported – collection of water storages

The date for which the published aggregated volume was calculated.

Related FAQ

This definition applies to:

date reported – single water storage

The date on which the published measurement was observed.

This definition applies to:

datum

A point, plane, or surface to which systems of measurement are referred or related to one another.

Source: Geoscience Australia, viewed 2 October 2018.

This definition applies to:

day

A period of 24 hours starting at 12:00 midnight.

Source: Water Regulations 2008 Regulation 1.04. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

dead storage

In a water storage, the volume of water stored below the level of the lowest outlet (the minimum supply level). This water cannot be accessed under normal operating conditions.

This definition applies to:

dead storage capacity

The portion of total storage capacity that is equal to the volume of water below the level of the lowest outlet (the minimum supply level). This water cannot be accessed under normal operating conditions. See the water storage diagram for more information.

Related: minimum supply level

This definition applies to:

dead storage water

Water in a storage that is below the elevation of the lowest constructed outlet.

This definition applies to:

decile

One of a series of threshold values that divides a set of ordered data into 10 groups with an equal number of data points in each.

For example, consider a dataset of annual rainfall totals arranged in increasing order. The first decile is a value with 10% of the data below it and 90% above it. The eighth decile is a value with 80% of the data below it and 20% above it.

Related: quantile

This definition applies to:

declared water service

Water service, or part of a water service, declared under chapter 2A, part 5A, division 2 of the Water Act 2000 (Queensland).

Source: Water Act 2000 (Qld) Schedule 4 – Dictionary

This definition applies to:

deep drainage

The volume of water that moves below vegetation root zones which may or may not enter the saturated zone and become recharge to the groundwater system.

Source: Science Notes - Land series L109, Gueensland Government

Related: zone of saturation

This definition applies to:

DEM

Digital Elevation Model

A digital elevation model of the earth's surface.

Related:

This definition applies to:

DEM-9S

GEODATA 9 Second Digital Elevation Model.

A grid of ground level elevation points covering the whole of Australia with a grid spacing of 9 seconds in longitude and latitude (approximately 250 metres) in the GDA94 coordinate system.

Related:

Synonym: digital elevation model - 9 second

This definition applies to:

deploy

To prepare an instrument to retrieve data, then take measurements in contact with the water in its data retrieval mode.

This definition applies to:

depth

The vertical distance below the free surface of a stream to a point of reference, e.g. a measuring instrument, or the bottom of the stream at any point on a cross-section.

This definition applies to:

depth cell

A volume of water at a known distance and orientation from the transducer. Also known as a bin.

This definition applies to:

dermosols

Moderately deep and well-drained soils of wetter areas in eastern Australia. Can be strongly acidic in the high rainfall areas or highly alkaline if they contain calcium carbonate.

Source: R F Isbell, 1996, The Australian Soil Classification, CSIRO Publishing, Melbourne.

This definition applies to:

desalinated water

Volume of water sourced from desalination processes.

This definition applies to:

desalination

The process of removing salt from brackish or saline water.

This definition applies to:

dewpoint temperature

The temperature to which air must be cooled, at constant pressure and constant moisture content, to reach saturation.

Source: Water Regulations 2008 Schedule 3 Part 1. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

DGPS

Differential Global Positioning System

An enhancement to Global Positioning System (GPS) that uses a network of fixed ground based reference stations to broadcast the difference between the positions indicated by the satellite systems and the known fixed positions.

The underlying premise of differential GPS is that any two receivers that are relatively close together will experience similar atmospheric errors. DGPS requires that a GPS receiver be set up on a precisely known location. This GPS receiver is the base or reference station. The base station receiver calculates its position based on satellite signals and compares this location to the known location. The difference is applied to the GPS data recorded by the second GPS receiver, which is known as the roving receiver. The corrected information can be applied to data from the roving receiver in real-time in the field using radio signals or through post-processing after data capture using special processing software.

Source: ESRI, viewed 2 October 2018. Copyright © 1995–2013 Esri.

This definition applies to:

Differential Global Positioning System

An enhancement to Global Positioning System (GPS) that uses a network of fixed ground based reference stations to broadcast the difference between the positions indicated by the satellite systems and the known fixed positions.

The underlying premise of differential GPS (DGPS) is that any two receivers that are relatively close together will experience similar atmospheric errors. DGPS requires that a GPS receiver be set up on a precisely known location. This GPS receiver is the base or reference station. The base station receiver calculates its position based on satellite signals and compares this location to the known location. The difference is applied to the GPS data recorded by the second GPS receiver, which is known as the roving receiver. The corrected information can be applied to data from the roving receiver in real-time in the field using radio signals or through post-processing after data capture using special processing software.

Source: ESRI, viewed 2 October 2018. Copyright © 1995–2013 Esri.

This definition applies to:

Digital Elevation Model

A digital elevation model of the earth's surface.

Related:

This definition applies to:

digital elevation model - 9 second

GEODATA 9 Second Digital Elevation Model. A grid of ground level elevation points covering the whole of Australia with a grid spacing of 9 seconds in longitude and latitude (approximately 250 metres) in the GDA94 coordinate system.

Source: Geoscience Australia, viewed 01 March 2017.

Synonym: DEM-9S

This definition applies to:

direct diversion

The volume of surface water abstracted when no prior allocation or other claim on the surface water existed.

This definition applies to:

direct extraction

The volume of groundwater abstracted when no prior allocation or other claim on the groundwater existed.

This definition applies to:

discharge

Volume of liquid flowing through a cross-section in a unit time.

Source: AS3778.1—2009 Clause 1.37. © Standards Australia Limited. Copied by the Australian Government Bureau of Meteorology with the permission of Standards Australia and Standards New Zealand under Licence 1901-c052.

This definition applies to:

discharge from groundwater to surface water

Flow of groundwater from the saturated zone to streams, water storages, farm dams and natural surface water features. This is a form of groundwater-surface water interaction.

This definition applies to:

discrete monitoring

Operating sensors or instruments by hand to collect measurements of a parameter. This can include regular or irregular measurements.

Synonym: manual monitoring

This definition applies to:

distributed model

A hydrological model that takes into consideration the spatial variability of driving processes.

This definition applies to:

diversion

Synonymous with abstraction in case the water is removed from the surface water store.

Synonym: abstraction

This definition applies to:

domestic purposes

Domestic purposes are defined in the dictionary of the Water Act 2000 (Qld) (Schedule 4). While not stated explicitly, domestic purposes includes water used in connection with a residential dwelling including human consumption, cooking, toilets and showers etc. Watering of gardens up to 0.25 ha in size is also considered to be domestic use provided the produce from the garden is not grown for sale, barter or exchange.

Source: Water Act 2000 (Qld) Schedule 4 – Dictionary

This definition applies to:

downward leakage to deep aquifers

The downward movement of groundwater from a shallow aquifer to a deeper, underlying aquifer.

This definition applies to:

downward longwave exposure

The total amount of terrestrial electromagnetic energy that falls on a specified unit horizontal surface.

Source: Water Regulations 2008 Schedule 3 Part 1. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

downward longwave irradiance

The longwave irradiance emitted from the sky that falls on a specified unit horizontal surface.

Source: Water Regulations 2008 Schedule 3 Part 1. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

DPS

Data Product Specification based on ISO 19139

Related: ISO

This definition applies to:

drainage division

Representation of the catchments of major surface water drainage systems, generally comprising a number of river basins. In Australia, 12 drainage divisions were first defined in the 1960s by the Australian Water Resources Council. Australian drainage division boundaries were revised by the Bureau in 2010 in line with the creation of the Australian Hydrological Geospatial Fabric (Geofabric) based on the 9 second Digital Elevation Model.

Related: Bureau

This definition applies to:

drought

A long period of abnormally low rainfall, especially one that adversely affects agriculture and other human activities. See the Climate Glossary for more information.

This definition applies to:

dry-bulb air temperature

The temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture.

Source: Water Regulations 2008 Schedule 3 Part 1. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

dryland agriculture

All agricultural crops and grassland cultivated for production with water input from rainfall only , i.e. no irrigated crops.

This definition applies to:

dryland crops

All non-irrigated crops including cereals, oil seeds, sugar and legumes.

This definition applies to:

dryland horticulture

All non-irrigated horticulture excluding intensive horticulture (e.g. glasshouses and shadehouses), which falls into the intensive use category. This category includes both perennial (e.g. tree fruits, tree nuts and vine fruits) and seasonal (e.g. fruits, nuts and herbs) horticulture.

This definition applies to:

dryland pasture

All non-irrigated pastures including grazing modified pasture, exotic pasture, native pasture, woody fodder plants, pasture legumes and sown grasses.

This definition applies to:

dryland salinity

Excessive salts in the soil surface and groundwater in non-irrigated areas. Although salts are a natural part of the Australian landscape, dryland salinity refers to excess salt that affects soil, native vegetation, biodiversity, crops and water quality.

Source: NSW Enviornment and Heritage - Dryland salinity

This definition applies to:

EC

electrical conductivity

This definition applies to:

eco-hydrogeological zone

A region where similar processes determine the interaction between groundwater and ecosystems, due to similar ecology, geology, climate, and groundwater/surface water connections.

Related: EHZ

This definition applies to:

ecological water requirement

Description of the water regimes needed to sustain the ecological values of water-dependent ecosystems at a low level of risk.

Source: adapted from definition for Environmental Water Requirements in ARMCANZ & ANZECC 1996, National principles for the provision of water for ecosystems, Sustainable Land and Water Resources Management Committee Subcommittee on Water Resources Occasional Paper SWR No 3.

Related: EWR

This definition applies to:

ecosystem

A dynamic complex of plant, animal and micro-organism communities and their non-living environment interacting as a functional unit.

Source: Commonwealth Environmental Protection and Biodiversity Conservation Act 1999

This definition applies to:

EHZ

eco-hydrogeological zone

Related: eco-hydrogeological zone

This definition applies to:

El Niño

Refers to the extensive warming of the central and eastern Pacific Ocean that leads to a major shift in weather patterns across the Pacific. In Australia (particularly eastern Australia), El Niño events are associated with an increased probability of drier conditions. See the Climate Glossary webpage on El Niño for more information.

Related:

This definition applies to:

El Niño Southern Oscillation

The oscillation between the El Niño climate phase and the La Niña phase, usually over several years. See the Australian Climate Influence webpage on ENSO for more information.

Related:

This definition applies to:

electric tape

A water level measurement device comprising a graduated measurement tape with a moisture detector on one end and a signal device on the other.

The moisture detector is lowered into the bore and sends an electrical signal to the surface when it makes contact with the groundwater. This triggers the signal device, usually a light or sound, enabling the operator to measure the distance to water.

This definition applies to:

electrical conductivity

There are multiple contexts for this item

Context 1

In relation to water, the capacity of the water to transmit a flow of electricity and is a common measure of the salinity of the water.

Source: Water Regulations 2008 Schedule 3 Part 1. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

Context 2

Electrical conductivity (EC) measures dissolved salt in water. The standard EC unit is microSiemens per centimetre (µS/cm) at 25 °C.

This definition applies to:

electronic format

A format that is machine readable, but does not include scanned documents.

Source: Water Regulations 2008 Regulation 1.03. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

endorheic basin

A closed surface water drainage basin that retains water and has no outflow to the sea.

This definition applies to:

ensemble

A column of depth cells equivalent to a vertical in conventional current meter gauging. An ensemble or profile may refer to a single measurement of the water column or an average of pings or profile measurements.

This definition applies to:

ensemble forecast

A set of multiple forecasts for the same period and location. The spread of multiple forecasts provides information about forecast uncertainty.

This definition applies to:

ENSO

El Niño Southern Oscillation

The oscillation between the El Niño climate phase and the La Niña climate phase, or opposite phase, usually over several years. See the Weather and Climate page on ENSO for more information.

Related:

This definition applies to:

entitlement security

The frequency with which water allocated under a water access entitlement is able to be supplied in full.

Related: security licence

Synonym: reliability

This definition applies to:

entitlement system

A jurisdictional gazetted instrument (e.g. Water Sharing Plan), subordinate to the overarching State or Territory water rights legislation, intended to share the portion of the total water resource it covers.

This definition applies to:

entitlements held for the environment

Water Access Entitlements held for the benefit of the environment. They may include entitlements of a specific environmental class and non specific classes of entitlement.

Related: water access entitlement

This definition applies to:

environmental allocation

Allocations announced on entitlements held for the environment.

This definition applies to:

environmental flow

The streamflow required to maintain appropriate environmental conditions in a waterway or water body.

This definition applies to:

environmental water

Water that is available or preserved, to achieve environmental outcomes, including ecosystem function, biodiversity, water quality and water resource health.

Source: Water Act 2007 Part 1 Section 4, at 8 Febraury 2019. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

environmental water commitment

Instruments in place to achieve the environmental water determination, e.g. environmental water storage release rules, water access rules to limit abstractions, rules on diversion to wetlands and annual environmental watering plans.

This definition applies to:

environmental water determination

The environmental objectives or water regime that will be provided to meet the appropriate ecological values. The water regime is defined in terms of specific water level or flow criteria at key representative sites, which together form the Environmental Water Provisions (EWP).

This definition applies to:

environmental water outcome

Water level or water flow with its timing and location that has been determined or delivered for the benefit of the environment

This definition applies to:

environmental water provisions

The specific water level or flow criteria at key representative sites that the environmental water regime is set to achieve as part of the environmental water determination. They may meet in part or in full the environmenal water regimes requirements.

This definition applies to:

environmental water regime

Water regime for the benefit of the environment.

This definition applies to:

environmental water regime requirement

The water regime needed to maintain ecological values of water dependent ecosystems at a low level of risk.

This definition applies to:

environmental water release

Water released from infrastructure, such as a surface water storage, for the benefit of the environment.

This definition applies to:

ephemeral

Something which only lasts for a short time. Typically used to describe rivers, lakes and wetlands that are intermittantly dry.

This definition applies to:

ESRI

A software development company based in the United States that builds ArcGIS.

Related: ArcGIS

This definition applies to:

ESRI File Geodatabase

A format for storing GIS data within the ArcGIS software.

Related: Geographic Information System

This definition applies to:

ET

evapotranspiration

The sum of evaporation and plant transpiration from the earth’s land surface to the atmosphere.

This definition applies to:

evaporation

A process that occurs at a liquid surface, resulting in a change of state from liquid to vapour. In relation to water resource assessment and water accounting, evaporation refers to the movement of water from the land surface (predominantly liquid) to the atmosphere (water vapour). The liquid water at the land surface that may be available for evaporation includes surface water, soil water, water within vegetation, and water on vegetation and paved surfaces.

Related:

This definition applies to:

evapotranspiration

There are multiple contexts for this item

Context 1

The sum of evaporation and plant transpiration from the earth’s land surface to the atmosphere.

This definition applies to:

Context 2

The combined loss of water from a given area during a specified period of time by evaporation from the soil or water surface and by transpiration from plants.

Source: Australian and New Zealand Guidelines for Fresh and Marine Water Quality (2000)

Synonym: evapotranspiration

This definition applies to:

EWP

Environmental Water Provisions

This definition applies to:

EWR

ecological water requirement

Related: ecological water requirement

This definition applies to:

exceedance probability

The forecast probability that a particular variable such as streamflow volume will be exceeded.

This definition applies to:

exposure

The measure of the energy received per unit area.

Source: Water Regulations 2008 Schedule 3 Part 1. For the latest information on Australian Government law please go to Federal Register of Legislation

This definition applies to:

external trade

A transaction to transfer a water right from one legal entity to another out of a specified area. The area can be a water system, water management area or a trading zone as defined in respective State and Territory legislation.

This definition applies to:

extraction

Synonymous with abstraction in case the water is removed from the groundwater store.

Synonym: abstraction

This definition applies to:

farm dam

Small water storage, usually managed by the landowner with a capacity usually less than 100 ML. The volume includes dead storage.

Related: runoff dam

This definition applies to:

feature

A part of the physical environment with properties that can be observed; these include natural features such as rivers, aquifers and the atmosphere, and human defined or constructed features such as channels, irrigation districts and urban supply areas.

This definition applies to:

feature class

Homogeneous collections of common features, each having the same spatial representation, such as points, lines, or polygons, and a common set of attribute columns, for example, a line feature class for representing road centrelines. The four most commonly used feature classes in the geodatabase are points, lines, polygons, and annotation (the geodatabase name for map text).

Source: ArcGIS 9.2 Desktop Help

This definition applies to:

ferrosols

Soils with high free iron and clay contents. They occur along the eastern coastline, in northern parts of Western Australia and the Top End.

Source: R F Isbell, 1996, The Australian Soil Classification, CSIRO Publishing, Melbourne.

This definition applies to:

ferruginous

Containing iron and typically having reddish-brown colour.

This definition applies to:

financial year

A period used for reporting of annual financial statements in Government and other organisations. In Australia this usually refers to the 12 months starting 1 July and ending on 30 June.

This definition applies to:

first quartile

The first quartile of a set of numbers is the value in which 25% of the numbers are below it and 75% of the numbers are above it when the numbers are arranged in ascending (increasing) order.

Synonym: 25% quartile

This definition applies to:

flash flooding

Flooding occurring within about six hours of rain, usually the result of intense local rain and characterised by rapid rises in water-levels.

This definition applies to:

flood threat advice

An advice of the potential occurrence of flooding inferred from forecast meteorological considerations and an assessment of catchment wetness. The issuing of a flood watch is meant to indicate that vigilance to potential flooding is required of the community.

Related:

Synonym: flood watch

This definition applies to:

flood watch

An advice of the potential occurrence of flooding inferred from forecast meteorological considerations and an assessment of catchment wetness. The issuing of a flood watch is meant to indicate that vigilance to potential flooding is required of the community.

Synonym: flood threat advice

This definition applies to:

floodplain

Flat or nearly flat land adjacent to a stream or river that experiences occasional or periodic flooding.

Related: alluvial plain

This definition applies to:

flow

The flow of water in streams, rivers and other channels.

Synonym: streamflow

This definition applies to:

forest

Land dominated by trees and other woody vegetation. It includes closed forest, open forest and woodland.

This definition applies to: