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匈牙利煤和铝土矿主要赋存在有岩溶水危害的地带,因此一直存在着地下水涌入的危险。要开采这两种矿物须排出3000万米。左右的地下水,其中大部分水来自铝土矿山。适合露天开采的大部分铝土矿业已采完,因而必须转入地下开采。90％的铝土矿储量赋存在岩溶水潜水面以下。
Hungarian coal and bauxite are predominantly depleted by karst water and there is always the danger of influx of groundwater. To mine these two minerals must be discharged 30 million meters. Groundwater, most of which comes from bauxite mines. Most of the bauxite suitable for open pit mining has been taken and must therefore be diverted underground. 90% of the bauxite reserves are found below the karst water surface.