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Department of Agriculture

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  3. Supervising Scientist
  4. Early detection monitoring

Sidebar first - EN - Science

  • Supervising Scientist
    • About the Supervising Scientist Branch
      • Staff profiles
    • Ranger Mine
      • Closure and rehabilitation
      • Monitoring
        • Early detection monitoring
        • Assessment of long-term ecosystem level responses
      • Environmental research
      • Supervision and assessment
    • Other uranium mines
    • Keeping the community informed
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Early detection monitoring

SSB undertakes in-situ toxicity monitoring using freshwater snail reproduction

SSB undertakes in-situ toxicity monitoring using freshwater snail reproduction

Chemical and physical monitoring

The water chemistry monitoring program (including the radionuclide radium-226) is conducted in Magela Creek and Gulungul Creek in the period of stream flow in order to:

  1. enhance the baseline/background dataset for water chemistry upstream of Ranger, and
  2. detect potential mine-related changes in water quality.

The Supervising Scientist’s water chemistry monitoring program has been developed using continuous monitoring of physico-chemical parameters coupled with automatic event-based collection of water samples. Water chemistry samples are collected monthly during routine quality assurance sampling; if an electrical conductivity (EC) trigger is reached, it indicates potential mine-related change in water quality.

Details regarding the development and operation of the monitoring program can be found in the Surface water chemistry monitoring protocol to assess impacts from Ranger Mine and the Revised Ranger Mine Water Quality Objectives for Magela Creek and Gulungul Creek.

Biological monitoring

Biological monitoring techniques have been developed to assess the environmental impact of uranium mining on aquatic ecosystems downstream of ranger mine. Two early detection methods are used:

  • In-situ toxicity monitoring using freshwater snail reproduction
  • Bioaccumulation monitoring in freshwater mussels

Details regarding the development of the in-situ snail toxicity monitoring can be found in the Environmental monitoring protocols to assess potential impacts from Ranger minesite on aquatic ecosystems: In-situ toxicity monitoring – freshwater snail, Amerianna cumingi, reproduction test.

Monitoring data 2017 - current

These documents provides an update to the Supervising Scientist Branch’s routine surface water quality monitoring for Magela Creek and Gulungul Creek:

Magela Creek

  • Magela Creek monitoring data 2021-22
  • Magela Creek monitoring data 2020-21
  • Magela Creek monitoring data 2019-20
  • Magela Creek monitoring data 2018-19
  • Magela Creek monitoring data 2017-18

Gulungul Creek

  • Gulungul Creek monitoring data 2021-22
  • Gulungul Creek monitoring data 2020-21
  • Gulungul Creek monitoring data 2019-20
  • Gulungul Creek monitoring data 2018-19
  • Gulungul Creek monitoring data 2017-18

Monitoring data - previous years

Magela Creek

  • Magela Creek monitoring data 2016-17
  • Magela Creek monitoring data 2015-16
  • Magela Creek monitoring data 2014-15
  • Magela Creek monitoring data 2010-14
  • Magela Creek monitoring data 2002-10

Gulungul Creek

  • Gulungul Creek monitoring data 2016-17
  • Gulungul Creek monitoring data 2015-16
  • Gulungul Creek monitoring data 2014-15
  • Gulungul Creek monitoring data 2010-14
  • Gulungul Creek monitoring data 2002-10

Further information

  • Annual Technical and Annual Reports
  • Monitoring of aquatic ecosystems
  • Ranger uranium mine
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Last updated: 16 March 2022

© Department of Agriculture, Water and the Environment

We acknowledge the Traditional Owners of country throughout Australia and recognise their continuing connection to land, waters and culture. We pay our respects to their Elders past, present and emerging.