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Government of Western Australia Department of Water and Environmental Regulation
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Managing the state's water resources requires a significant focus on water quality. We use the term 'water quality' to refer to the physical, chemical and

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    • What are waterways, rivers, estuaries and wetlands?
    • Values of our waterways
    • Threats to our waterways
    • Assessing waterway health
      • Estuary water quality assessment
      • Estuary sediment quality
      • River water quality assessment
      • South West Index of river condition
      • Foreshore condition and assessment
      • Ecotoxicity
      • Phytoplankton
      • Catchment nutrient reports
    • Managing our waterways
  • Estuaries
  • Onshore petroleum and water resources
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Ecotoxicity

This content has been updated and moved to WA.gov.au

Page last updated - 19 May 2022
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The Department of Water and Environmental Regulation was established by the Government of Western Australia on 1 July 2017. It is a result of the amalgamation of the Department of Environment Regulation, Department of Water and the Office of the Environmental Protection Authority. This website/publication may contain references to previous government departments and programs. Please contact the Department of Water and Environmental Regulation to clarify any specific information.

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