The eMalahleni Mine Water Treatment Plant was built to recover potable water from acid mine drainage from several mines in the eMalahleni (Witbank) area. The plant was commissioned in September 2007 and has been since operating successfully. It was designed to treat 25Ml/d of AMD (Acid Mine Drainage) with a recovery consistently greater than 99%, producing potable water with a guaranteed TDS (Total Dissolved Solids) of under 450mh/l. This exceptional water recovery is achieved using the Keyplan Hi recovery Precipitating Reverse Osmosis (HiPRO) process. The plant receives its feed water from four coal mines in the eMalahleni (Witbank) Area i.e. Greenside Colliery, Kleinkopje Colliery, South Witbank Colliery and Navigation Colliery.