From Western Australia Government
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Seawater Interface Elev Superficial Aq – Cockburn Area Contours (DWER-133)

Created 23/06/2025

Updated 23/10/2025

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This dataset shows the geographic location and elevation of the seawater interface (~10,000 us/cm) within the Superficial aquifer, in Cockburn groundwater area. This dataset is a derived location based on an assessment of data for the period 2018 to 2019. This location can change pending known factors that impact the location of the seawater interface including the time of year, tidal movements, abstraction, recharge and throughflow. The full assessment of the seawater interface in this area, including detailed methods is documented in report: Puthiaparampil J, Brandes de Roos I & Ryan SA, 2024, Cockburn seawater interface – Priority Area Assessment under the State groundwater investigation program, Hydrogeological Report Series HR443, Department of Water and Environmental Regulation, Western Australia. This dataset is sourced from the Statewide seawater interface project, funded by the Government of Western Australia under the State Groundwater Investigation Program. The data used in this layer is owned by the department can be downloaded from the Water Information Reporting (WIR) Portal or by contacting the Department. Information on the SWI project can be found on the Western Australia State Government website (www.wa.gov.au).

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Additional Info

Field Value
Title Seawater Interface Elev Superficial Aq – Cockburn Area Contours (DWER-133)
Language English
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/2e5ba3ea-253a-4a54-8d5a-96d40b87862c
Remote Last Updated 16/10/2025
Contact Point
Department of Water and Environmental Regulation
spatial.data@dwer.wa.gov.au
Reference Period 28/08/2024
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        115.68441187300004,
        -32.29615298899995
      ],
      [
        115.78342136100002,
        -32.29615298899995
      ],
      [
        115.78342136100002,
        -32.076680059999944
      ],
      [
        115.68441187300004,
        -32.076680059999944
      ],
      [
        115.68441187300004,
        -32.29615298899995
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Western Australia Government

Data Source

This dataset was originally found on Western Australia Government "Seawater Interface Elev Superficial Aq – Cockburn Area Contours (DWER-133)". Please visit the source to access the original metadata of the dataset:
https://catalogue.data.wa.gov.au/dataset/seawater-interface-elevation-superficial-aquifer-cockburn-area-contours