quality:correction, information:classification
Waters

The territory of Slovenia mainly (16,423 square kilometers or 6,341 square miles, i.e. 81%) belongs to the Black Sea basin, and a smaller part (3,850 square kilometers or 1,490 square miles, i.e. 19%) belongs to the Adriatic Sea basin. These two parts are divided into smaller units in regard to their central rivers, the Mura River basin, the Drava River basin, the Sava River basin with Kolpa River basin, and the basin of the Adriatic rivers. In comparison with other developed countries, water quality in Slovenia is considered to be among the highest in Europe. One of the reasons is undoubtedly that most of the rivers rise on the mountainous territory of Slovenia. However, this does not mean that Slovenia has no problems with surface water and groundwater quality, especially in areas with intensive farming.