A hydrogeologist studies the movement of water underground. In this role, you analyze the flow of groundwater to develop risk assessments and create future predictions and use your research to aid construction projects, mining endeavors, environmental studies, and hazardous waste disposal. Typical job duties involve helping technical staff with 3-D hydrogeology visualization, site assessment, and GIS analysis. You often help develop project plans for associated construction projects. A career as a hydrogeologist requires working outside in the field in all weather conditions, often with a team of scientists and technicians.