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Water lilyAlligator River, Northern TerritoryRanger Uranium Mine, Northern Territory

Supervising Scientist Environmental Monitoring Program

Ranger mine monitoring data - Magela Creek

Uranium in Magela Creek

The Supervising Scientist's interpretation of the data in these charts is available at Explanatory notes on physical and chemical indicators of water quality.

The uranium limit of 6 µg/L recommended by the Supervising Scientist has been derived using local ecotoxicological data in accordance with the Australian Water Quality Guidelines to protect 99% of the species present. The limit must not be exceeded. Please note that the limit is far above the range shown on the charts, but the scale on the right hand axis shows how the measured concentrations compare to the limit.

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Graph showing uranium levels in Magela Creek 2006-2009Graph showing uranium levels in Magela Creek 2001-2006

Manganese in Magela Creek

The Supervising Scientist's interpretation of the data in these charts is available at Explanatory notes on physical and chemical indicators of water quality.

The manganese guideline recommended by the Supervising Scientist is determined statistically and may be exceeded occasionally due to natural events. The guideline should not be exceeded due to mining activities.

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Graph showing manganese levels in Magela Creek 2006-2009 Graph showing manganese levels in Magela Creek 2001-2006

Magnesium in Magela Creek

The Supervising Scientist's interpretation of the data in these charts is available at Explanatory notes on physical and chemical indicators of water quality.

There is no specific guideline for magnesium in Magela Creek. EC is strongly correlated to magnesium. Therefore, the guideline recommended by the Supervising Scientist for electrical conductivity is referred to when interpreting magnesium data.

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Graph showing magnesium levels in Magela Creek 2006-2009Graph showing magnesium levels in Magela Creek 2001-2006

Sulfate in Magela Creek

The Supervising Scientist's interpretation of the data in these charts is available at Explanatory notes on physical and chemical indicators of water quality.

There is no specific guideline for sulfate in Magela Creek. EC is strongly correlated to sulfate. Therefore, the guideline recommended by the Supervising Scientist for electrical conductivity is referred to when interpreting sulfate data. For comparison, the drinking water standard with taste as the criterion for sulfate is 250 mg/l.

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Graph showing sulfate levels in Magela Creek 2006-2009 Graph showing sulfate levels in Magela Creek 2001-2006

pH in Magela Creek

The Supervising Scientist's interpretation of the data in these charts is available at Explanatory notes on physical and chemical indicators of water quality.

The pH guideline recommended by the Supervising Scientist is statistically determined. It may be exceeded occasionally due to natural events but should not be exceeded due to mining activities. pH will be interpreted with regard to the values of other key variables.

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Graph showing pH levels in Magela Creek 2006-2009 Graph showing pH levels in Magela Creek 2001-2006

Conductivity in Magela Creek

The Supervising Scientist's interpretation of the data in these charts is available at Explanatory notes on physical and chemical indicators of water quality.

The conductivity guideline recommended by the Supervising Scientist is determined statistically and may be exceeded occasionally due to natural events. The guideline should not be exceeded due to mining activities.

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Graph showing conductivity levels in Magela Creek 2006-2009Graph showing conductivity levels in Magela Creek 2001-2006

Turbidity in Magela Creek

The Supervising Scientist's interpretation of the data in these charts is available at Explanatory notes on physical and chemical indicators of water quality.

The turbidity guideline of 26 NTU recommended by the Supervising Scientist is determined statistically and may be exceeded occasionally due to natural events. The guideline should not be exceeded due to mining activities.

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Graph showing turbidity levels in Magela Creek 2006-2009Graph showing turbidity levels in Magela Creek 2001-2006

Radium-226 in Magela Creek

The Supervising Scientist's interpretation of the data in these charts is available at Explanatory notes on physical and chemical indicators of water quality.

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Graph showing radium levels in Magela Creek 2007-2009Graph showing radium levels in Magela Creek 2001-2006
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