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Department of Climate Change, Energy, Enviroment and Water

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  2. Science and research
  3. Supervising Scientist
  4. Ranger uranium mine
  5. Monitoring

Sidebar first - EN - Science

  • Ranger Mine
    • Closure and rehabilitation
    • Monitoring
      • Early detection monitoring
      • Assessment of long-term ecosystem level responses
    • Environmental research
    • Supervision and assessment

Monitoring

Fork-Tailed Catfish (Neoarius spp.)

Fork-Tailed Catfish (Neoarius spp.)

Since the 2001/2002 wet season, the Supervising Scientist Branch (SSB) has undertaken a formal water quality monitoring program to monitor and assess any impacts on ecosystems and people as a result of mining activities in the Alligator Rivers Region.

In addition to Energy Resources of Australia Ltd (ERA)’s statutory monitoring program, SSB conducts an independent surface water quality monitoring program that uses a multiple lines-of-evidence approach for undertaking environmental impact assessment.

Environmental monitoring is carried out within the Ranger Project Area and within Kakadu National Park to ensure people and the environment are protected from the potential effects of uranium mining.

The monitoring program

SSB uses two broad approaches to assess possible environmental impacts from mine water input to receiving surface waters around the minesite:

  1. early detection monitoring
  2. assessment of long-term ecosystem-level responses

Early detection methods include:

  1. continuous and event-based monitoring of chemical and physical indicators
  2. in-situ toxicity monitoring using freshwater snail reproduction
  3. bioaccumulation monitoring using freshwater mussels.

Long-term ecosystem-level responses are assessed using:

  1. benthic macroinvertebrate communities in Magela and Gulungul creeks
  2. fish communities in channel and lowland billabongs

Data collected from all biological monitoring techniques are compared with historical data and data from reference sites in creeks and billabongs not influenced by mining.

Ranger minesite including location of water release points and SSB monitoring sites

Ranger minesite including location of water release points and SSB monitoring sites

Download monitoring ranger map (PDF - 2.77 MB)

Text version of infographic

Site Code Gulungul Site Description Site Code Magela Site Description
GCNUS Gulungul Creek new upstream MCUGT Magela Creek upstream
GCUS Gulungul Creek upstream MCDW Magela Creek downstream
GCLB Gulungul Creek lease boundary G8210009 Magela Creek gauging station
GCDS Gulungul Creek downstream    
GCT2GCC Gulungul Creek confluence with Tributary 2    
GCT2RST Gulungul Creek Tributary 2 Radon Springs Track    
 

Further information

  • Annual Technical and Annual Reports
  • Ranger uranium mine

Text version of infographic

Satellite image showing Ranger minesite including the location of water release points and Supervising Scientist Branch monitoring sites.

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Last updated: 10 October 2021

© Department of Climate Change, Energy, the Environment and Water

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.