South Creek Hydrogeological Landscapes: June 2020 (First Edition)

This dataset was developed to support the South Creek Stormwater Project (SCSP). Primarily a desktop study, existing Western Sydney HGLs covering the South Creek area have been reviewed and adjusted to reflect available soil mapping. LF7 landform modelling for the catchment has been used to define HGL management zones to which salinity hazard ratings are assigned. These ratings are at a landform element scale, an improvement on the original HGL ratings which were applied to the whole HGL unit.

For this dataset, additional information can be found in the relevant HGL unit descriptions provided in the original Western Sydney HGL data package.

Spatial resolution for this product is 1:50,000.

This is intended to be an interim product. A future update will incorporate more recent refinements to the soil landscape boundaries and provide basic descriptions for the updated HGL units in South Creek. It is also intended to add a small area of the Western Sydney Aerotropolis zone that falls outside the South Creek catchment.

The HGL concept provides a structure for understanding how differences in salinity are expressed across the landscape. A HGL spatially differentiates areas with similar salt stores and pathways for salt mobilisation. The process of delineating a HGL relies on the integration of a number of causative factors: geology, soils, slope, regolith thickness, and climate; an understanding of the different modes of salinity development; and the impacts of salinity within landscapes (land salinity, salt load and salt concentration in streams due to salt contributions from base flow and runoff). Information sources such as soil landscape maps, site characterisation, salinity occurrence maps, hydrogeological data, surface water and groundwater data are incorporated into standardised unit descriptions.

Hydrogeological Landscapes (HGL) and associated salinity impacts and hazards are available as a custom layer in eSPADE, which includes links to individual HGL unit descriptions.

Data and Resources

  • Data quality statement for South Creek Hydrogeological Landscapes: June 2020...

  • Package contains ArcGIS Geodatabase and Shapefile and layer file for...

  • View this dataset and other soil-related datasets on eSPADE soil spatial viewer.

  • The Western Sydney HGL was used to develop the South Creek HGL product....

Metadata Summary What is metadata?

Field Value
Language English
Alternative Title South Creek HGL - 2020
Edition First
Purpose This data package supports urban and land planning and management for the South Creek catchment in Western Sydney. It provides an interim classification of salinity hazard across the landscape.
Frequency of change As needed
Metadata Date 2022-03-16
Date of Asset Creation 2020-06-23
Date of Asset Revision 2022-03-16
Date of Asset Publication 2022-03-17
License Creative Commons Attribution 4.0
Equivalent Scale 50000
Vector representation
Record 1
Object type
Object count
Geospatial Topic Geoscientific information
NSW Place Name South Creek catchment

Dataset extent

Temporal Coverage From 2019-01-03 - 2020-06-23
Datum GDA94 / MGAZone 56
Legal Disclaimer Read
Attribution Department of Planning and Environment asserts the right to be attributed as author of the original material in the following manner: "© State Government of NSW and Department of Planning and Environment 2022"