From DataNSW
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Hydrologic Soil Groups (HSG) of NSW

Created 24/06/2025

Updated 16/08/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

This map provides an estimation of Hydrologic Groups of soils in NSW according to the four class system (A-D)

A — soils having high infiltration rates, even when thoroughly wetted and consisting chiefly of deep, well to excessively-drained sands or gravels. These soils have a high rate of water transmission and have low water run-off potential.

B — soils having moderate infiltration rates when thoroughly wetted and consisting chiefly of moderately deep to deep, moderately fine to moderately coarse textures. These soils have a moderate rate of water transmission.

C — soils having slow infiltration rates when thoroughly wetted and consisting chiefly of soils with a layer that impedes downward movement of water, or soils with moderately fine to fine texture. These soils have a slow rate of water transmission.

D — soils having very slow infiltration rates when thoroughly wetted and consisting chiefly of clay soils with a high swelling potential, soils with a permanent high water table, soils with a claypan or clay layer at or near the surface, and shallow soils over nearly impervious material. These soils have a very slow rate of water transmission.

The map uses the best available soils mapping coverage and was derived from a lookup table system linking a Hydrologic Group class to a particular soil type using the Great Soil Group (GSG) classification. Each dominant GSG has been assigned a Hydrologic Soil Group. The classification is based on the United State's Hydrologic Soil Group system published within the National Engineering Handbook (2007). Online Maps: This dataset can be viewed using eSPADE (NSW’s soil spatial viewer), which contains a suite of soil and landscape information including soil profile data. Many of these datasets have hot-linked soil reports. An alternative viewer is the SEED Map; an ideal way to see what other natural resources datasets (e.g. vegetation) are available for this map area. Reference: Department of Planning, Industry and Environment, 2021, Hydrologic Soil Groups of NSW, Version 4.5, NSW Department of Planning, Industry and Environment, Parramatta.

Files and APIs

Tags

Additional Info

Field Value
Title Hydrologic Soil Groups (HSG) of NSW
Language English
Licence Creative Commons Attribution 3.0 Australia
Landing Page https://data.gov.au/data/dataset/809211db-76c1-4316-a59c-283097eca878
Remote Last Updated 17/09/2024
Contact Point
NSW Department of Climate Change, Energy, the Environment and Water
?datansw@customerservice.nsw.gov.au
Reference Period 07/12/2011 - 24/10/2020
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        153.639,
        -37.505
      ],
      [
        153.639,
        -28.158
      ],
      [
        141.001,
        -28.158
      ],
      [
        141.001,
        -37.505
      ],
      [
        153.639,
        -37.505
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal DataNSW

Data Source

This dataset was originally found on DataNSW "Hydrologic Soil Groups (HSG) of NSW". Please visit the source to access the original metadata of the dataset:
https://data.nsw.gov.au/data/dataset/nsw-hydrologic-groups-of-soils-in-nsw7f9e8