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In this section you will find detailed information, including national overviews and state and regional level assessments, from the 2000-2002 National Land and Water Resources Audit theme assessments.
Water resources - Overview - Western Australia
Basin & Surface Water Management Area: Salt Lake
Introduction
Name: Salt Lak
Description: Central inland catchment, arid climate. Natural vegetation tree steppe, tall shrubland and low woodland. Land use cattle grazing on pastoral leases, Aboriginal Reserve, Crown Land and mining.
Vital Statistics:
| Area: | 494,842 Km2 |
|---|---|
| Total storage volume: | 41 |
| Total surface water use: | 11,406 ML/yr |
| Development category: | LOW DEVELOPMENT |
| Mean annual run-off: | no data |
A four-class classification system was developed to provide a simple method to communicate the status of the use and allocation of Australia's water resources in relation to sustainable water management.
It is important to recognise that adequately quantifying a sustainable flow regime or sustainable yield and consequent operating rules is a complex matter. State, Territory and scientific agencies continue to develop and apply methods and measures for determining sustainable flow regimes and sustainable yields.
This categorisation provides a general guide only. Please refer to the State and Territory Overview and Technical reports for detail on the analysis methods used.
| Category | Development status | ||
|---|---|---|---|
| 1 | <30% | Low development | |
| 2 | 30 - 70% | Moderate development | |
| 3 | 70 - 100% | Highly developed | |
| 4 | 100% | Overdeveloped |
* Water use as a percentage of sustainable flow regime (surface water) and sustainable yield (groundwater)
PLEASE NOTE:
Sustainable Yield:
Sustainable yields are considered nominal only and no detailed calculation of these figures has been undertaken.
PLEASE NOTE:
Categorisation:
Categorisation for SWMA's and Sub Areas based on NLWRA classifications for 1996/97 Water Use as a percentage of Sustainable Yield.
How saline are the surface water resources in the Salt Lake surface water management area?
Table: Surface water resource by salinity class.
| Total Volume, Divertible Yield (ML/Yr) | |
|---|---|
| Total volume (ML/yr), DIVERSION | 1,031 |
| <500 mg/l (ML/yr) | 1,031 |
| 500 mg/l (ML/yr) - 1500 mg/l (ML/yr) | 0 |
| 1500 mg/l (ML/yr) - 5000 mg/l (ML/yr) | 0 |
| 5000 mg/l (ML/yr) - 14000 mg/l (ML/yr) | 0 |
| > 14000 mg/l (ML/yr) | 0 |
Major water storages
Table: Major water storage areas:
| Storage name: | Capacity (ML) |
|---|---|
| Grass Patch Open & Covered Dams | no data |
| Menzies Dams1 & 2 | no data |
| Salmon Gums Dams 1 & 2 | 41 |
| Total | 41 |
Further Information
- View the Western Australia Water Resources Assessment 2000 Report
- View the Western Australia Water Resources Assessment 2000 Technical Report
- Link to data available for download on the:
- Surface Water Management Areas
- Data from the 1985 Review of Australia's Water Resources and Water Use
- Link to the Map Maker to make a map using this information.
- For more information about water and other natural resource issues link to www.water.wa.gov.au.
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