Engineering News 21 June 2011.

The R225-million set aside to deal with acid mine drainage (AMD) would not be enough, and closer to R750-million would be needed to address the problem successfully, Johann Claassens from the Trans-Caledon Tunnel Authority (TCTA) said on Tuesday…

http://www.engineeringnews.co.za/article/r225m-for-acid-mine-drainage-not-enough-parliament-hears-2011-06-21-1