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Supervising Scientist Division

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  • About us
    • Alligator Rivers Region
    • Legislation
    • Structure of SSD
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    • Working at SSD
  • Environmental monitoring
    • Ranger - Magela chemical data
    • Ranger - Gulungul chemical data
    • Jabiluka - Ngarradj (Swift Creek) chemical data
    • Ranger - Magela biological data
    • Radon monitoring stations
    • Surface Water Chemistry Monitoring
    • Sampling maps
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    • Working with the Northern Territory Government
    • Environmental incidents
    • Uranium mining in the ARR
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List of tables

• Table 2.1 - Ranger production activity for 2002-03
• Table 2.2 - Radiation doses received by workers at Ranger uranium mine
• Table 2.3 - Observations from the 2003 Ranger Environmental Audit
• Table 2.4 - Ranger Minesite Technical Committee meetings
• Table 2.5 - Ranger Authorisation Changes/Approvals
• Table 2.6 - Summary of SSD Magela Creek water quality measurements upstream and downstream of Ranger over the 2002-03 wet season
• Table 2.7 - Summary of SSD Gulungul Creek water quality measurements upstream and downstream of Ranger over the 2002-03 wet season
• Table 2.8 Observations from the 2003 Jabiluka Environmental Audit
• Table 2.9 Jabiluka Minesite Technical Committee meetings
• Table 2.10 Jabiluka Authorisation Changes/Approvals
• Table 2.11 Summary of SSD Ngarradj water quality measurements upstream and downstream of Jabiluka over the 2002-2003 wet season
• Table 2.12 Nabarlek Minesite Technical Committee meetings
• Table 4.1 - Key Knowledge Needs identified by ARRTC
• Table 6.1 - Overseas Events 2002-03
• Table 7.1 - Staffing numbers and locations
• Table 7.2 - Summary of Cost of Outputs
• Table 7.3 - Animal Experimentation Ethics Approvals

List of figures

• Figure 1.1 Alligator Rivers Region
• Figure 2.1 - Ranger mine site
• Figure 2.2 - Seepage sump at Ranger Southern Stockpile
• Figure 2.3 - Distribution of radiation doses for workers at Ranger during 2002
• Figure 2.4 - Location of product dust escape from calciner building - dust monitoring equipment shown deployed under the extraction vents
• Figure 2.5 - Site of process water leak on 5 September 2002
• Figure 2.6a - Uranium concentrations in Magela Creek for the 2001-02 wet season
• Figure 2.6b - Uranium concentrations in Magela Creek for the 2002-03 wet season
• Figure 2.7 - Creekside monitoring results for freshwater snail egg production and larval black-banded rainbowfish survival for wet seasons between 1992 and 2003
• Figure 2.8 - Paired upstream-downstream dissimilarity values calculated for community structure of macroinvertebrate families in several streams in the vicinity of the Ranger uranium mine for the period 1994 to 2002
• Figure 2.9 - Abundance of fish in different billabongs with different forms of exposure to contaminants from Ranger uranium mine, 1994-2003
• Figure 2.10 - Ordination plots of fish communities in shallow billabongs near Ranger uranium mine with different potential exposure to contamination from mine wastes for 1994 to 2003
• Figure 2.11 - Radon decay product and long lived alpha activity concentrations (radioactive dust) at the monitoring stations in the Alligator Rivers Region
• Figure 2.12 Jabiluka minesite
• Figure 2.13 Paired upstream-downstream dissimilarity values calculated over four wet seasons for community structure of macroinvertebrate families in several streams near the Jabiluka minesite
• Figure 2.14 Paired upstream-downstream dissimilarity values calculated for fish community structure in four streams near the Jabiluka minesite over the past several wet seasons
• Figure 2.15 Radon decay products and LLAA (radioactive dust) concentrations at Four Gates Road radon station and Jabiluka Hill
• Figure 3.1 - Alligator Rivers Region, with a detailed excerpt of the southern area showing the extent of the two airborne gamma surveys and the location of known uranium anomalies
• Figure 3.2 - Collecting aquatic invertebrates from Leichhardt Springs in Kakadu National Park
• Figure 3.3 - Comparison of Eophreatoicus species from two sites
• Figure 3.4 - Eophreatoicus species: Sequence of DNA bases from a section of the 16s mitochondrial genome
• Figure 3.5 - Setting-up the field mesocosm experiment, seeding tubs with creek sand and water with their associated biological communities
• Figure 3.6 - NM-MDS ordination of mesocosm macroinvertebrate responses to increasing concentrations of MgSO⁴
• Figure 3.7 - Response of chlorophyll to MgSO⁴ treatments in mesocosm experiments
• Figure 3.8 - Jabiluka site and the stream gauging network within the Ngarradj catchment
• Figure 3.9 - Diurnal variation of rainfall and runoff within the Ngarradj catchment
• Figure 3.10 - Riparian vegetation along the Ngarradj channel, showing the dense canopy and the large trees growing on the stable river bank
• Figure 3.11 - The channel of Tributary Central during the wet season showing actively eroding exposed banks with no trees
• Figure 3.12 - The graph shows the large relative change in composition of vegetation in this area
• Figure 3.13 - The effect of fire on floodplain monocultures of native Hymenachne grass
• Figure 4.1 - ARRTC members inspecting a monitoring point on Magela Creek
• Figure 7.1 - Organisational structure of the Supervising Scientist Division
• Figure 7.2 - The new Department of the Environment and Heritage facility

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