This report focuses on water and sediment flux within five Pilot areas as well as nutrient and nonpoint sources of pollution sources related to them. 
Considerably higher quantities of water and sediment are being discharged from the Italian coast, resulting in more complex coastal environments with problems generally proportional to the size of each Pilot Site. Complexity of all three Pilot sites along the Croatian coast can be recognized in unknown quantities and less predictable behaviour of groundwater compared to surface runoff.
The most common feature of all Pilot sites refers to seawater intrusion. This problem is being related to decrease in precipitation and surface runoff, negative fresh water budget, increase of air temperature over the coastal Adriatic and actual sea-level rise. Negative changes in freshwater budget led or may lead to extended time of flushing and enhanced accumulation of contaminants.
Amount and availability of sediment/ water flux and quality data showed significant differences between Pilot sites.