Surface Water Management Subareas for Western Australia

Surface Water Management subareas for Western Australia, derived from hydrographic catchments in consultation with regional environmental officers. The data supports calculation of sustainable yields and flow rates for water allocation and natural resource management decisions. Native vegetation clearing values are included for subareas within the South-West region.

Use Cases

• Analyze sustainable yields and flow rates per management subarea to inform water allocation decisions.
• Map native vegetation clearing values for subareas within the South-West region to assess environmental impact.
• Aggregate hydrographic subcatchments into management subareas based on regional officer-identified concerns.
• Use subarea geometry for spatial analysis of water availability and management tool development.

Strengths

• Data developed in consultation with regional Department of Environment officers for authoritative boundary definition.
• Includes native vegetation clearing values for subareas within the South-West region of Western Australia.
• Geometry is based on hydrographic catchments, providing a natural hydrological foundation.

Limitations

• Specific row count, column details, and sample data are unavailable for assessing dataset scale and structure.
• Data format list includes non-tabular spatial services (WMS, API) which may require specialized GIS tools for use.

Provenance

Source

Department of Water and Environmental Regulation, Geospatial and Data Services Manager.

Collection Method

Derived from hydrographic catchments in consultation with regional offices; boundaries defined by areas of similar management requirements.

Time Range

null

Freshness

Last updated March 2026.

Geography

Western Australia, with specific values for the South-West region.