The pollution of rivers, endangered underground water and water springs, hazardous substances in the soil, uncontrolled disposal of large quantities of waste - these and many other problems severely reduce the quality of life and hinder the country’s overall development. The majority of surface watercourses are excessively polluted (29% fall into the third and fourth water quality class). The pollution is spreading towards river sources. The quality of groundwater has been deteriorating recently. It is evident from the "Strategy for Economic Development" of Slovenia that the approximation to the European Union is the right choice for Slovenia.