The content of this course refers to: (i) Fundamental principles of hydrogeology, (ii) Groundwater flow (Darcy’s Law, hydraulic conductivity, aquifer transmissivity, flow in anisotropic aquifers, (iii) Groundwater hydraulics (steady/unsteady flow in confined/unconfined/leaky aquifers), (iv) Objectives of groundwater control in construction (problems for excavations in soils/rock), (v) Design of groundwater control systems (methods for surface water and groundwater, site investigation for groundwater lowering, design of groundwater lowering systems), (vi) Groundwater control during construction (sump pumping, wellpoint systems, deep well systems, methods for groundwater exclusion, permanent groundwater control systems), (vii) Environmental impacts and monitoring of groundwater lowering systems, (viii) Groundwater modeling of lowering systems (model conceptualization, available codes, modeling techniques and boundary conditions)