The Lesotho Highlands Development Authority (LHDA), says mining operations of Letšeng Diamond Mine, Storm Mountain Diamonds (Kao) and Liqhobong Diamond Mine continue to pollute water sources critical in the project catchment areas in Mokhotlong & Botha-BothaThe Lesotho Highlands Development Authority (LHDA), says mining operations of Letšeng Diamond Mine, Storm Mountain Diamonds (Kao) and Liqhobong Diamond Mine continue to pollute water sources critical in the project catchment areas in Mokhotlong & Botha-Botha Makanday