The content of this course refers to: (i) Analysis of hydrogeological systems (aquifer types, groundwater flow hydrology and hydraulics), (ii) Groundwater chemistry (hydrochemical analyses, water-rock interactions), (iii) Principles of isotope hydrology (applications in the hydrogeological cycle), (iv) Nitrate contamination (nitrification/denitrification processes, agrochemical diffuse sources), (v) aquifer vulnerability (vulnerability index, application in diffuse and point sources), (vi) aquifer ecosystem services, (vii) Managed Aquifer Recharge (methods and technologies, monitoring and management of MAR facilities, Soil-Aquifer-Treatment systems, EU legislation in wastewater reuse), (viii) Introduction to groundwater modeling (emphasis in mass and contaminant transport, variable density flow), (iv) Application of hydroinformatics in groudwater chemistry.