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JOHANNESBURG (miningweekly.com) – Although acid mine drainage (AMD) in the Witwatersrand basin is the result of a legacy of environmental mismanagement of water resources by mines and lax enforcement of regulations by government, these role-players are working to constructively address this problem, says Department of Water and Sanitation (DWS) senior manager Marius Keet.
Keet was a speaker during the first day of black-owned training and conferencing company Intelligence Transfer Centre’s two-day EnviroMining conference, held in Johannesburg, in March.
The Witwatersrand basin, a largely underground geological formation that surfaces in the Witwatersrand region of Johannesburg, comprises the Western, Central and Eastern basins.
A current key focus for government is to prevent further decanting of AMD from the basins by pumping underground water to protect the environmental critical level (ECL). The ECL is the level above which the water in the mine voids at critical locations, which is where environmental features that need to be protected are at the lowest elevations.