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Independent Expert Scientific Committee on Unconventional Gas Development and Large Coal Mining Development

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The Independent Expert Scientific Committee on Unconventional Gas Development and Large Coal Mining Development (IESC) is a statutory committee of leading scientists that independently advises government regulators on the impacts that unconventional gas and large coal mining developments may have on Australia’s water resources.

Under its legislative functions, the IESC provides scientific advice in relation to proposed unconventional gas and coal mining developments that are likely to have a significant impact on water resources. The committee acknowledges that there are broader social, economic and cultural values associated with water resources.

The IESC was formerly known as the Independent Expert Scientific Committee on Coal Seam Gas and Large Coal Mining Development prior to the commencement of the Nature Repair (Consequential Amendments) Act 2023 on 15 December 2023.

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Latest updates

Agenda and minutes of the 117th IESC Meeting

12 August 2025

Meeting 117 of the Independent Expert Scientific Committee on Unconventional Gas Development and Large Coal Mining Development was held on 21 & 23 July 2025.

IESC advice on Boggabri Coal Mine Modification 10

12 August 2025

Boggabri Coal Mine Modification 10 is a proposed extension to the existing Boggabri Coal Mine open-cut pit, located 15 kilometres northeast of Boggabri, New South Wales.

IESC advice on the Bloomfield Colliery Continuation Project Modification 5

08 July 2025

The Bloomfield Colliery Continuation Project Modification 5 is an open-cut coal mine extension located southeast of Maitland and approximately 20 kilometres northwest of Newcastle in the Hunter Valley region, New South Wales.

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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