NSW Water Theme: Hydrology Features for Surface and Groundwater in GDA2020

The Water theme is based on hydrology, which studies the movement, distribution, and quality of water. This hosted feature layer from Spatial Services (DCS) includes data on surface water, groundwater, coastlines, and named watercourses, aligned with definitions under the Water Act 2007. It was initially published on 05/02/2020 and last updated on 2026-04-09.

Use Cases

• Model watershed sustainability based on hydrology and water quality concepts described.
• Map surface water features like watercourses and lakes based on the Hydro Area and Line categories.
• Analyze groundwater resources and infrastructure based on Bore and Spring point features.
• Conduct coastal zone management using Mean High and Low Water Mark coastline data.
• Support policy decision-making for water security using nationally consistent data products.

Strengths

• Includes a detailed taxonomy of hydrology elements such as Ancillary Hydro Points, Coastline, and Fuzzy Extent areas.
• Data is aligned with the legal definitions of the Water Act 2007, providing a regulatory framework.
• Serves as a nationally consistent data product intended for analysis and policy decision-making.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• The data currency date is listed as 01/01/3000, which is atypical and requires verification.

Provenance

Source

Spatial Services (DCS), New South Wales government.

Collection Method

Data provider files compiled into an ESRI File Geodatabase.

Time Range

Initial publication date is 05/02/2020.

Freshness

Last updated 2026-04-09 21:13:14.571805; update frequency is listed as 'Other'.

Geography

New South Wales, Australia, using the GDA2020 coordinate system.