1 / 14

ACID MINE DRAINAGE TCTA MANDATE

ACID MINE DRAINAGE TCTA MANDATE. Presentation to Parliamentary Portfolio Committee on Water Affairs. Date: 21/22 June 2011. Content. TCTA Mandate PSP Role Consultations with mines Western Basin Central Basin Eastern Basin Programme Key Challenges. TCTA Mandate.

helena
Download Presentation

ACID MINE DRAINAGE TCTA MANDATE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ACID MINE DRAINAGE TCTA MANDATE Presentation to Parliamentary Portfolio Committee on Water Affairs Date: 21/22 June 2011

  2. Content • TCTA Mandate • PSP Role • Consultations with mines • Western Basin • Central Basin • Eastern Basin • Programme • Key Challenges

  3. TCTA Mandate • Ministerial directive – 6 April 2011 • Emergency works in Witwatersrand Gold Fields comprising: • Installation of pumps • Construction of water treatment plants • Release treated water into river system • Obtain environmental and regulatory approvals • Funding via National Treasury (R225 million) • Advise and assist DWA with O&M model • Right to expropriate land • Minister may direct to do more

  4. PSP Role • Issue tender on 8 April 2011 • PSP : BKS in association with Golder • Award PSP contract (Part 1)on 9 May 2011 • Main tasks: • Due diligence review – report due 7 July • Tender design and documentation • Detail design and construction supervision • Project closeout

  5. Consultations with mines • Western and Central basins Eastern Basin? • Explore institutional options (legal frameworks) • Access to land • Availability and status of existing infrastructure • Co-funding options • Capex • Opex • Water off-takes • O&M options

  6. Western Basin

  7. Western Basin • Agreed ECL level is 1550 amsl or 160 m below collar of 8 Shaft. • Current decant 17.7 ML/day into the TweelopiesSpruit. • Peak flows of 50 – 60 Ml/day have been measured in summer • Immediate solutions identified to reduce decant in Western Basin • Upgrade of Rand Uranium plant to treat 30 Ml/day (preferred) • Upgrade Mogale Gold treatment plant 24 Ml/day • Upgrade Rand uranium and Mogale Gold • Cost of immediate solution (Capex R25 M) (Opex R52 M per year) • Short term solution - being identified

  8. Western Basin

  9. Central Basin

  10. Central Basin Agreed ECL level is 1467 amsl or 173 m below collar of SWV Shaft. Gold Reef City requires level below 1480 amsl CRG requires level to be 400m below SWV Short term solution - being identified Pumps have been ordered by CRG to pump to 400 m

  11. Eastern Basin • Current Design ECL set at 1280 amsl or 290 m below Grootvlei collar • Role players to be identified • Final ECL to be determined based on mining requirements • Short term solution - being identified

  12. Programme

  13. Key Challenges • Emergency status of project – accelerated processes • Unclear project scope definition • Severely limited timeframes • Timely regulatory and env approvals • Poor state of existing infrastructure • High public profile and interest • Complex institutional arrangements • Limited cost recovery • Possible budget limitations • Timing of long-term solution

  14. Thank you Questions …

More Related