Posted by: Saving Water SA (Cape Town, South Africa) – partnered with Water Rhapsody conservation systems – 20 February 2011
The stark and harsh reality of acid mine drainage (AMD) is laid bare in a report by the Department of Water Affairs.
The document includes the findings of an interministerial committee team of experts on AMD, assembled in September to investigate the issue.
“Urgent reduction of water ingress into mine voids remained a high priority,” it says.
The department would neither confirm nor deny ownership of the document.
The document proposes various interventions for three areas: the West Rand (Western Basin), central Johannesburg (Central Basin) and the East Rand (Eastern Basin).
It also notes that recent heavy rain and resultant flooding in Gauteng raised concerns that these conditions would lead to more water flowing into mines and worsening AMD in the province.
“The recent occurrence of flooding is in essence a matter separate to that of AMD; however, cognisance must be taken that flood water has potential to enter mine workings and also increase AMD.”
The document points out that water in mine workings is an important environmental concern. Continue reading