The impact of precipitation on the groundwater of coal waste dump

The aim of the study was to assess effect climate change, mainly higher and lower precipitation, on intensity impact a coal waste dump groundwater. analysis used meteorological data for Katowice region in 2002-2020 as well height groundwater table vicinity dump, physicochemical parameters chemical composition 2004-2020. Based analyses, it found that periods drought Silesian Voivodeship, located south Poland, occurred spring, while excessive short-term rainfall summer. period annual precipitation between 2007 2010, followed by long dry or very years lasted until 2016. During excess leachate from caused decrease pH 2.50, an increase electrolytic conductivity (EC) concentration sulphates zinc 5100 µS/cm, 3890 mg/L, 18.5 respectively.