Mine Closure: Can closure create opportunities?

Issue: 
#58
Griffon heap leach closure, Nevada: Future wildlife watering hole
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Jeff Parshley , Group Chairman and Corporate Consultant Defining post-mining land uses is an essential part of mine closure. Properly selected, the post-mining land use will guide the operator’s closure vision and objectives, and...
Lake forming in one of the pits - exposed wall rocks include sulfidic materials
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Claire Linklater , Principal Consultant (Geochemistry) In mid-2017, SRK was appointed to prepare a closure plan to pre-feasibility study (PFS) level for a mine in Southeast Asia. The mine area had more than 40...
Borska Reka, Serbia (left) Tsumeb smelter waste, Namibia (right)
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Rob Bowell , Corporate Consultant (Geochemistry) Carl Williams , Principal Consultant (Geochemistry) The closure and abandonment of mining areas is rarely caused by complete consumption or extraction of a resource but rather is typically...
Observing water quality challenges at the site (Photo credit: William Schafer)
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Emily Harris , ​Principal Consultant (Environment) It’s no secret that effective mine closure planning requires a multi-disciplinary approach, but integrating inputs and teams can be a challenging task. For the Pueblo Viejo project in...
Emerald Glacier, looking north along tailings area
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Stuart McPhee , Civil and Geotechnical Engineer Anyone who has been involved with project management or construction can attest to the inherent challenges that can be experienced on mine remediation projects. They are often...
Sand and aggregate
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Val Sawyer , Principal Consultant - Environmental Sand and aggregate are two of the most commonly used natural resources in modern society to maintain the existing infrastructure and provide for future construction. After air...
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Dave Wanner , Principal Engineer The Jerritt Canyon Mine Tailings Storage Facility 1 (TSF1) located in northeast Nevada was commissioned in 1980 and operated through 2013 for the disposal and containment of spent tailings...
Reclaimed tailings
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Terry Braun , Principal GeoEnvironmentalist For owners of active mines, mine closure links past performance to future permission. Their success in expanding existing mines, new brownfield developments or greenfield projects will depend on the...
	Old wind swept tailings at a long-standing Ag-Pb-Zn mine in Argentina
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Ignacio Ezama , Civil Engineer Camilo de los Hoyos , Senior Consultant This case history is about an old mine in the province of Jujuy, Argentina, which has been producing silver, lead and zinc...
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Heather Thomson , Senior Consultant (Mine Waste) Landform evolution models (LEMs) are used to estimate potential surface water runoff and predict resulting erosion and deposition processes on a landform scale. When applied to mining...
Typical operation of central thickened tailings discharge
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Nicholas Thompson , Consultant Pepe Moreno , Principal Consultant (Mine Waste) With an ever-present need to control costs, the management and closure planning of tailings storage facilities (TSFs), already perceived by many as a...
Heap leach liner installation
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Breese Burnley , Principal Engineer SRK has assisted a client with closing four gold heap leach pads at the same mine through various phases of operation and ownership since 1998. The continued expansion of...
Heap leach final draindown model
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Iozsef Miskolczi , Senior Geotechnical Engineer Vast inventories of leach solutions unsuitable for direct discharge to the environment are among the legacies of heap leach operations at closure. The final rinsing and subsequent draindown...
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? James Lake , Partner / Principal Environmental Scientist Legislative requirements in many jurisdictions require that the mine closure plan include a detailed plan of the post closure land uses. In essence, this plan is...
Water erosion
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Terry Braun , Principal GeoEnvironmentalist Post-closure site management at mine sites typically includes measuring surface reclamation success, monitoring surface water and groundwater quality, and maintaining active or passive water management systems. The effects of...
Orange is not the new green
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Mark Willow , Principal Environmental Scientist Except in some extremely arid environments or at higher elevations, open pit mining tends to result in the development of semi-permanent or permanent water bodies post closure, when...
Concurrent rehabilitation in an arid environment
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Matthew Law , Senior Environmental Management Consultant and Economist Along with other countries, holders of mining and prospecting rights in South Africa must provide financial guarantees for rehabilitation. Rehabilitation is achieved when closure commitments...
Two examples of post-closure minesite models
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Daryl Hockley , Corporate Consultant The typical mine closure plan is a lengthy report designed to meet all the requirements of owners and regulators, not to mention SRK’s numerous technical specialists. Is it any...
 Conceptualisation of reaction transport model flowpath from pit lake to compliance wells
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? David Bird , Principal Geochemist Geochemical modelling may not immediately come to mind when scoping a work plan to develop a mine closure strategy. However, geochemical modelling is often essential in forecasting the long-term...
An example of urgent issues - a waste dump adjacent to farm land in Southern China
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Andy Li , Principal Consultant (Environmental) Yonglian Sun , Managing Director and Corporate Consultant (Geotechnical Engineering) SRK China focuses on mine closure business development in China, and visited potential business partners and clients, together...
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Marcela Curotto , Principal Civil Chemical Engineer Assessing mine closure in Chile is a process that began partially in 1994 with the Law 19.300, Law of Environmental Bases, which requires an environmental assessment of...
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Bora Arpacıoglu , Environmental Engineer Mine closure and reclamation issues are among the more recent regulatory developments in the Turkish mining industry. Historically, these issues were not regulated adequately. Some rudimentary clauses existed in...
Consolidated and capped residue dump
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Raymond Mayne , Environmental Scientist South Africa has a long history of mining extending beyond 100 years. Over time, many mines had not implemented closure plans once resources were depleted. This has resulted in...
Download A4 | Letter SRK News | Issue 58 : Mine Closure: Can closure create opportunities? Carl Williams , Principal Consultant (Geochemistry) Ghana’s world-class gold mining industry is well established. Numerous in-country mine-related regulations and requirements are enforced; however, post-closure requirements are less well regulated and generally only meet the...
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