ABSTRACT: Short information about the results of 25 years monitoring of snow cover chemical composition in Slovakia is presented in the paper. The monitoring network, con si sts of 44 locations, is sampled once a year from all snow profiles. As the main objective of the article, the statistical evaluation expressed in the tables have been chosen to show the basic input information about the chemical content of groundwater. Level of the both global and local influence on snow chemical composition and the background value s are assessed. Moreover, the trends expected in the near future are described.