Similar to a full range of economic activities, agriculture depends on water. A healthy aquatic and water-dependent ecosystem thereby provides a necessary basis for agricultural activities. On the other hand, agriculture, as well as other economic activities, has huge impacts on the status of waterbodies and water itself. Chemical and mineral agricultural inputs are found more and more often in ground and surface waters. Actions to hinder the entrance of agricultural products into waterbodies are needed on regional, national and international level as water pollution is a cross border issue.