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Mine Closure

Author(s): 
Dawn Garcia, Terry Braun
Category: 
Environmental/Social

Environmental sustainability involves integrating and meeting economic, social, and environmental goals with respect to planning and implementing mining activities. Active mine or processing facilities offer an operator various opportunities to incorporate environmental sustainability goals in Read more... about Closure at the San Manuel Plant Site

Author(s): 
Jeff Parshley, W. Bauman, D. Blaxland
Category: 
Mining, Environmental/Social
 
 
The last two decades have seen a significant evolution in both the methods for and purposes of closure cost estimating. As part of this evolution, changes in the uses of closure cost estimates have resulted in coincident changes in the scope, methods employed
Author(s): 
Jeff Parshley
Category: 
Environmental/Social

The last two decades have seen a significant evolution in both the methods for and purposes of closure cost estimating. As part of this evolution, changes in the uses of closure cost estimates have resulted in coincident changes in the scope, methods employed and level of detail required. Read more... about An Evolution of the Methods for and Purposes of Mine Closure Cost Estimating

Author(s): 
Jeff Parshley, Mark Willow, Rob Bowell
Category: 
Environmental/Social

The last two decades have seen a significant evolution in the approaches used to close gold heap leach pad facilities in an environmentally responsible manner. With the promulgation of new cyanide regulations in the State of Nevada, USA in 1989, the mining industry was faced with the need to Read more... about The Evolution of Cyanide Heap Leach Closure Methods

Author(s): 
John Chapman, Danielle Kyan and Jeff Parshley (SRK North America)
Category: 
Mining, Project Evaluation

What do you really need to know about mine closure planning and costing?

This high level talk covers key aspects of mine closure planning and costing from both international and local perspectives (using specific examples from Queensland). It will address the importance of focusing on Read more... about Mine Closure: What is the real cost?

Author(s): 
Jeff Parshley, Cathryn MacCallum
Category: 
Mining, Environmental/Social

Attractive Nuisances and Wicked Solutions: Sustainable Mine Closure Read more... about Attractive Nuisances and Wicked Solutions

Author(s): 
Zhanar Faizuldayeva
Category: 
Mining

Successful mine closure or reclamation processes have various definitions in jurisdictions around the world. Setting criteria for a successful mine closure is required to measure progress towards achieving the objectives of closure. The majority of existing guidelines are based on processes – Read more... about A comparative study of regulatory approaches to mine closure with a special emphasis on the current situation in the former Soviet Union

Author(s): 
Andrés Lopez, Eduardo Sanzana, and Jorge Campos
Category: 
Environmental/Social

The promulgation and the entry into force of the Law Nº 20.551 that regulates the closure of mining operations and its facilities, through the Supreme Decree Nº 41, on November 2012, has been one of the most relevant regulatory changes in the last few years for the mining industry in Chile.

In summary, the new Law has three fundamental pillars: the obligation to submit for the approval of the authorities a closure plan that guarantees the physical and chemical stability of the mining facilities after finishing their operations; the requirement to provide the State with a financial guarantee equal to the value of the implementation of the closure measures and works; and the establishment of a post-closure fund.

In addition, the Law gives more attributions to the corresponding Authority (SERNAGEOMIN, part of the Chilean Mining Ministry) to establish audits and apply rigorous sanctions to those non-compliant mining companies.

The Law was successfully implemented through a collaborative public-private strategy, and the result was the presentation in time of the mine closure plans by 90% of the industry, with closure cost gradually guaranteed from 2015, for an amount superior to US$ 12.000 millions.

This article presents a vision of the main lessons learned from the process of the implementation of the Law during its key installation stage (2012-2014), from the perspective of a world class mining company and its mine closure consultant experts; as well as improvement opportunities and challenges that the mining industry will face with this new Law within the next years. Read more... about Implementation of Mine Closure Law in Chile: Lessons Learned and Opportunities

Author(s): 
Cathryn MacCallum and Anita Bron
Category: 
Environmental/Social

Sustainability, positive legacy and the importance of social closure are high on the agenda of many mining companies operating around the world today.  Read more... about Livelihood Restoration

Author(s): 
C.M. Linklater, S. Ogier-Halim, J Chapman, M. Tyler and G. Hill
Category: 
Water Management

The current BHP Billiton Olympic Dam (OD) operation comprises underground workings (tunnels, stopes) and a number of surface facilities including the TSF and processing plant.  Mined out stopes in the underground workings are backfilled using cement aggregate fill which includes a portion of Read more... about Post-Closure Groundwater Impact Assessment for the Underground Mining Operation at Olympic Dam

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