Keyword: acid mine drainage

Johannesburg's Fresh Water Supply at Risk

West of Johannesburg, Robinson Lake used to be enjoyed for recreational activities. It has now been abandoned due to its high sulphuric acid content. Robinson Lake is a graphic example, above ground, of what is happening below the ground to Johannesburg's water table as a result of acid mine drainage.   There are thousands of deep abandoned mines in the wider Johannesburg region, each filled with rain water that reacts with exposed rock to create a poisonous blend of acid and heavy...