This course provides an introduction to hydrogeology with particular emphasis to physical aspects. We will particularly focus on process and direct applications to geological settings. Problem solving is an important course component. The hydrologic cycle, physical rock framework, and properties of aquifer systems will be described and quantified. Groundwater flow and mass transport equations will be covered, as well as pump test design and analysis. Natural tracers and groundwater dating also will be discussed. An introduction to groundwater modeling with simulation of groundwater flow and mass transport will be provided.