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October 30, 2014

Experts say Wollongong Coal expansion poses a threat to water sources in Sydney

Scientists warn that a proposal by Wollongong Coal to expand its operations into the Lake Cataract catchment in Australia may put Sydney's drinking water at risk.

CataractDam

Scientists warn that a proposal by Wollongong Coal to expand its operations into the Lake Cataract catchment in Australia may put Sydney’s drinking water at risk.

Lake Cataract catchment is one of the main drinking water resources for Illawarra and Macarthur regions in New South Wales and is a back-up resource for Sydney.

Wollongong Coal has proposed an extension to its Russell Vale colliery that would move it nearer the catchment area. The two-phase underground expansion project is awaiting approval from the New South Wales Department of Planning.

The company proposes to mine 4.7 million tonnes of coal over five years.

"It is considered very likely that there will be significant impacts to water resources." 

However, the Independent Expert Scientific Committee has prepared a report that raises various issues over the company’s proposal, such as shortcomings in the water modelling done by Wollongong Coal, reported ABC.

The report said: "It is considered very likely that there will be significant impacts to water resources.

"The final risk assessment underestimated the overall risk to these swamps."

The report recommended a change in the layout of the mine to protect the surrounding swamps.

Local environmental scientist Dr Ann Young said: "They are very important in drought conditions.

"This is the place which nearly always is supplying to water to the dam and, of course, the swamps are nearly always the source of that in dry times."

The report came to light as the department of planning and environment (DPE) approved the interim expansion operations at the mine.

Wollongong Coal said in a statement to ABC: "A large number of the issues and potential impacts raised by the IESC were raised by, and subsequently resolved with NSW Government regulators as part of the NSW planning process."


Image: The Dam at Lake Cataract, is one of the main drinking water resources for Illawarra and Macarthur regions in New South Wales. Photo: Public domain.

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