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Regional Water Resource Assessment – SWMA |
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Yarra Yarra Lakes |
Yarra Yarra Lakes Surface Water Management Area is within Western Australia and is 42,173 km2
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The estimate of regional water consumption as prepared by the Australian Bureau of Statistics (ABS) includes water use within the Yarra Yarra Lakes, and Ninghan Surface Water Management Areas
Estimated water consumption is 10,534 ML
Agriculture comprises approximately 67% of total water consumption; Mining comprises approximately 16% of total water consumption; Other comprises approximately 9% of total water consumption; Manufacturing and Household comprise the remainder.
PLEASE NOTE: Regional estimates were derived using survey data designed to produce state- and territory-level estimates, and incorporated data from a range of other sources. The degree of confidence that can be attached to individual regional estimates is variable. In general, the estimates should be used with a moderate degree of confidence. For further details see ABS Publication 4610.0.055.002
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The categories used for the breakdown of water consumption are as per Table 2.9
of the Water Account 2004-05. "Other" in respect of the estimated water consumption
comprises water use within the following industries:
- Water supply, sewerage and drainage services
- Electricity and gas
- Forestry and fishing
- Services to Agriculture
- "Other industries"
Results of the National Water Commission’s Framework for Assessment of River and
Wetland Health for
Yarra Yarra Lakes
SWMA
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This page provides high level performance indicators of water management for the
Yarra Yarra Lakes
surface water management area (SWMA) based on information provided by the government
of
Western Australia.
It provides answers to a range of questions of relevance to the National Water Initiative
(NWI), specifically in relation to:
Please note that a dash means that either the data was not
available, not provided or that the question was not relevant for a particular area.
Surface water management framework
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What is the status of the water management plan for this surface water management
area?
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Not planned but identified as requiring a plan |
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If a final or draft plan has been written, what year was it completed?
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If a final or draft plan has been written, does it consider groundwater explicitly? |
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If yes, how is groundwater considered? |
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Technical assessment |
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Management decisions |
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What percentage of the surface water management area is covered by the water management
plan(s)? |
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Does your water plan specify water quality objectives to meet environmental and
other public benefit outcomes? |
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Other items included in the management framework are: |
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Metering program for this area |
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Effluent recycling |
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Climate change |
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Aquifer storage and recovery |
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Household rainwater tanks |
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Efficient irrigation systems |
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Other |
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Management plan available at: |
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Water resource caps
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Has a cap been placed on surface water usage / abstraction in this surface water
management area? |
No |
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Is the cap an absolute limit to allocation or provisional limit? |
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If there is a cap, what year was it implemented? |
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If there is a cap, is it considered to represent the sustainable surface water yield? |
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The following water usage types are included/not included under the cap: |
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Irrigation |
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Urban supply |
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Commercial / Industrial |
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Minor catchment storages |
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Minor on-stream storages |
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Minor extracted water storages |
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Stock and domestic |
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Mining / Oil and gas |
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Forestry |
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Floodplain harvesting |
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Drought supply |
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Greywater use |
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Effluent recycling |
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Aquifer storage and recovery |
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Does auditing of compliance with the cap occur? |
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Compliance report available at:
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Surface water / groundwater interaction
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Are surface water and groundwater managed as an integrated water resource in this
surface water management area? |
No |
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Reason or method: |
There is minimal connectivity between surface water and groundwater |
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Integrated management plan available at:
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Surface water sustainable yield
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The sustainable yield within this surface water management area for 2004/05 was: |
1000 ML |
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The method used to determine the sustainable yield was: |
Notional level determination - basic desktop assessment undertaken for NLWRA 2000 (Does not take into account reduced period of rainfall from 1975) |
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Was the sustainable yield determined for the combined (i.e. surface water and groundwater)
water? |
No |
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Is the cap considered to be at or below the sustainable yield of surface water? |
Cap not designated |
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What is the level of entitlements relative to the sustainable yield? |
Low level of development |
Environmental water requirements
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Have environmental water requirements been determined for this surface water management
area? |
No |
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If yes, what year were they completed?
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For regulated areas, how much of the mean annual flow is not available for allocation
and provided for the environment? (percentage of mean annual flow at locality of
river regulation) |
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Are there formal environmental water provisions for regulated rivers? |
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If so, what method was used to determine environmental water provisions for regulated
rivers? |
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For what percentage of the rivers are provisions made? |
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Maps illustrating which rivers have provisions available at: |
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Do the environmental water provisions consider groundwater?
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If yes, how? |
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Completed Environmental Flows Reports available at: |
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Surface water diversions
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The total surface water diversion in the surface water management area for 2004/05
was: |
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What percentage of surface water diversion is determined from metered data? |
Unknown |
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What is the level of diversions relative to the sustainable yield? |
Low level of diversions (0 - 29%) |
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For surface water diversion that is NOT metered, how was the surface water diversion
determined for 2004/05? |
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Estimated from irrigated areas |
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Estimated from licence volume |
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Estimated from power usage for pumps |
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Estimated from models |
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Other |
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Surface water entitlements
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Entitlements for surface water are required/not required for the following usage
types:
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Irrigation |
Required |
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Urban supply |
Required |
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Commercial / Industrial |
Required |
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Minor catchment storages |
Required |
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Minor on-stream storages |
Required |
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Minor extracted water storages |
Required |
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Stock and domestic |
Not required |
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Mining / Oil and gas |
Required |
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Forestry |
Required |
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Floodplain harvesting |
Not required |
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Drought supply |
Required |
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Greywater use |
Not required |
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Effluent recycling |
Not required |
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Aquifer storage and recovery |
Not required |
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Other |
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Protected terrestrial areas
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Each of the following protection types cover a percentage of the surface water management
area as detailed:
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Habitat/species management area |
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Managed resource protected areas |
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National park |
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Natural monument |
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Protected landscape/seascape |
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Strict nature reserve |
0.11 |
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Wilderness area |
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Total |
0.11 |
Related links
The links below provide access to similar data reports for groundwater management
units (GMUs) that overlap this surface water management area (SWMA).
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