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Completion Criteria Development for Mine Closure Planning

In the mining industry, the development of completion criteria is a necessary part of mine closure planning. It indicates the success of rehabilitation and enables a mining operator to determine when their liability for an area will cease. Our team has a long history of developing completion criteria for various mines across Australia. We¡¯ve contributed best practice advice with our involvement in the Western Australian Biodiversity Institute¡¯s 2019 project titled, ¡®A framework for developing mine-site completion criteria in Western Australia.¡¯

In the Pilbara region, we developed quantitative completion criteria by reviewing current and historical rehabilitation monitoring data across our client¡¯s mine sites. We focused on vegetation and erosion parameters to investigate whether the rehabilitated landform was stable, self-sustaining, and compatible with post-mining land uses. After reviewing monitoring data and interrogating it to identify key ecological trends, we produced site-specific criteria.

Effective evidence-based completion criteria helps demonstrate that mine closure activities have been successfully carried out and that environmental risks and health and safety impacts are at an acceptable level.