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Update on Acid Mine Drainage in the Witwatersrand, April 2012

Get the latest information on acid mine drainage in the Witwatersrand area, including updates on immediate and short-term solutions, long-term feasibility studies, and current mine water status.

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Update on Acid Mine Drainage in the Witwatersrand, April 2012

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  1. CONCISE UPDATE ON ACID MINE DRAINAGE IN THE WITWATERSRAND 17-18 April 2012 UPDATE BY Mr. MARIUS KEET

  2. Background / Introduction • Inter-Ministerial Committee (IMC) on AMD first convened on 1 Sep 2010 • DWA and DMR DGs appointed a Team of Experts (DWA, DMR, CGS, CSIR, WRC, MINTEK and academic reviewers) to conduct a situation assessment • Team of Experts (ToE) findings in Report: ”Mine Water Management in the Witwatersrand Gold Fields with Special Emphasis on Acid Mine Drainage” (IMC AMD Report) accepted by IMC • Cabinet approved IMC AMD Report on 9 Feb 2011 • DWA tasked to implement certain recommendations in IMC AMD Report 2

  3. Background / Introduction • DWA appointed TCTA as Implementing Agent on 6 Apr 2011 to: • Install pumps for mine water extraction • Construction of on-site treatment plants with option to refurbish existing plants • Convey treated water to nearby watercourse • Facilitate operation of pumps and treatment plants • TCTA appointed PSPs to undertake Due Diligence on Wits AMD • Due Diligence report finalized on 7 July 2011 - specified immediate and short-term solutions for Wits AMD 3

  4. Immediate solution • Construction works nearing completion • Stage 1 commissioning of treatment plant by 20 April 2012: increase treatment capacity from 12 to 24 ML/day • Stage 2 commissioning by end-April 2012: achieve maximum capacity of ~35 ML/day • Agreements with Rand Uranium (treatment plant) and Mogale Gold (sludge disposal) to be finalised by end-April 2012

  5. Short-term solution • Four (4) bids for short-term solution received by the TCTA • Evaluation of bids to be finalized by 20 April 2012 • TCTA to follow internal bid adjudication approval processes • Based on current funding (R433 million), TCTA will recommend plausible options to DWA • Current funding limitations may imply a phased (modular) implementation of short-term solution • TCTA intend to award bid by mid-May 2012 • Construction projected to commence by end-May 2012 5

  6. Long-term feasibility study • PSP team appointed in January 2012. • Contract period 13 Months until 28 February 2013. • Study objective: • Investigate and recommend a feasible long-term solution to the AMD problems emerging in the study area, in order to ensure long term water supply security and continuous fitness for use of Vaal River water. • Study registered with National Treasury’s PPP unit. • Processes followed is flexible and will enable conventional implementation as well as implementation through Public Private Partnership or Public-Public Partnership. 6

  7. Long-term feasibility study (continue) • Study status: • Team mobilised. • Data collection continuous. • Key stakeholders Identified: engagement well advanced. • Two Study management meetings held. • Meetings held with key stakeholders for eg. Federation for Sustainable Environment, Universities, Rand Water, Treasury, etc. • Study Stakeholder Committee meeting scheduled for early May and members invited. 7

  8. Long-term feasibility study (continue) • Initial findings regarding Implementation: • Urgency of implementation of desalination of AMD is driven by the possible reduced assurance of supply in the Vaal River System by 2014/15 • Serious risk that Vaal River requirement will not be met if Conventional project implementation processes are followed after the completion of the Feasibility Study. • Alternate Implementation methods will be needed: • ie parallel activities such as EIA, and rapid Procurement procedures, etc. will be required. • Dedicated project officer unit in DWA to be considered to coordinate different activities during rapid implementation. • Close coordination with National Treasury will be required for any PPP processes 8

  9. Long-term feasibility study (continue) • First steps for Request for Proposals: • Call for registration is in the process to be issued in order to enable possible service providers to register interest in providing services such as: • Technology solutions, • Funding for implementation, • Providing Treatment processing Plant • Providing Operations and Maintenance of AMD infrastructure • Care is taken that this call for registration will not compromise prescribed procurement processes. 9

  10. Current Mine Water Status ECL – The highest level that mine water can be allowed to rise in the mine void before adverse environmental impacts can be detected

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