Mine Rehabilitation - Case Studies

Australian mining companies understand land rehabilitation is part of responsible mining. We recognise our responsibility as a temporary custodian of land.  Mine rehabilitation is highly regulated, better implemented and more accountable than ever before.

The industry’s approach to land rehabilitation has improved significantly over past decades. We work to improve rehabilitation methods to ensure mining’s compatibility with current and future land uses such as farming.

Read more: Mine Rehabilitation, Closure Planning and Regulation - 2018

 

Mining companies understand land rehabilitation is fundamental to responsible mining.  It is a critical factor for ongoing community acceptance and a key indicator for corporate reporting. Read about our member companies rehabilitation successes. 

 

New Hope Group

New Hope’s industry leading environmental credentials have been formally ratified through Queensland Government certification of 349 hectares of progressively rehabilitated mined land at its New Acland coal mine operations on the Darling Downs.Owners.
 

New Hope has been progressively rehabilitating New Acland Mine since operations began in 2002. Rehabilitation commences immediately behind mining operations. Around 490Ha of mined land is rehabilitated. 240Ha of the rehabilitated land is now grazing ~75-100 cattle. Five years of scientific cattle grazing trials conducted on the rehabilitated land indicate cattle on mined land perform as well, or better than, cattle on unmined land.

New Acland benefits from one of Australia’s most ambitious and practical land management programs, led by the Acland Pastoral Company (APC).

Established by New Hope in 2006, APC provides a progressive rehabilitation program to return mined land to agricultural and conservation uses while contributing to the region’s agribusiness industry.

To date, about 400ha of land has been rehabilitated. Innovative cattle grazing trials and a local tree species planting program are also in progress.

 

Newmont

Newmont took ownership of the decommissioned Woodcutters lead-zinc mine in the Northern Territory as part of its 2002 acquisition of Normandy.  Newmont has continued decommissioning, rehabilitation and monitoring activities at the site in partnership with the area’s Traditional Owners, the Kungarakan and Warai people.

Work is guided by the Woodcutters Agreement which details local employment, training and stakeholder commitments and Newmont’s aim is to return the land to Traditional Owners when agreed closure criteria and objectives are met.

See more case studies in our publication - PDF icon Mine rehabilitation in the Australian minerals industry 25 Feb 2016.PDF

 

Peabody - Wilkie Creek

Peabody has progressed rehabilitation of its Wilkie Creek site in Queensland’s Surat Basin following the completion of coal mining in 2013 with over 60% of rehabilitation now complete. This includes backfilling of open cut voids, re-shaping of dumps and undergoing demolition and associated works. Included within the final landform planning process are paddocks and cattle watering systems to support the end land use of grazing.

Extensive community engagement continues to inform the planning for post-mine land use with grazing trials, including more than 50 cattle on a rehabilitated backfilled pit, delivering positive results for neighbouring graziers.

Wilkie Creek - 2008 (Left). 2016 (Right)

Read more here: PDF icon Peabody Australia - Land Rehabilitation. pfd

 

AngloAmerican 

At Anglo American’s Dawson Mine, the company pioneered the use of blasting techniques to successfully reshape void highwall into final landform position in 2013.
 
Pre- and post-blast surveying was undertaken to provide accurate estimates of how much reshaping and material was required for final landform. Four blasts were required to complete the project, which moved considerable amounts of highwall material into final landform position. Following reshaping, the area was seeded with a grazing mix of native and introduced species. It was then treated with five tonnes per ha of Gypsum in 2017 and re-seeded.
 
The area is currently being monitored for plant growth and species richness. Monitoring will continue every three years for progression to a stable state, and the area is expected to be ready for grazing activities in around four to five years. At the time, very few trials had been conducted using this sophisticated and innovative technique. The successful rehabilitation of the area has demonstrated the technique can be applied to reshaping mining voids – one of the most challenging aspects of rehabilitation for the industry – and rehabilitate land for productive post-mining use.

 

 

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