Water is necessary for life on Earth, and hydrologists seek to solve problems that affect sustainability of water quantity and quality. Hydrologic science is the study of water in all of its aspects: as weather, river basins, groundwater, glaciers, lakes, streams, permafrost and water vapor. Hydrologists measure and analyze water beneath the ground, on the earth’s surface and in the atmosphere to determine how water is affected by physical, chemical and biological processes on Earth. Job opportunities in hydrology exceed the available supply of trained hydrologists. Students commonly obtain internships and jobs with state and federal agencies, private consulting firms, environmental interest groups, irrigation districts, and utility companies. Federal agencies hiring hydrologists include the U.S. Geological Survey, U.S. Department of Agriculture (Fish & Wildlife, Agricultural Research, Forest Service, and National Resource Conservation Service), Environmental Protection Agency, and national research laboratories (Lawrence Livermore National Laboratory, Lawrence Berkeley National Laboratory). State and local agency employers include California's Departments of Water Resources, Conservation, Fish & Game, and Toxic Substances as well as the Water Resources Control Board and Regional Water Quality Control Boards. To obtain higher levels of responsibility and salary, hydrologists often seek advanced degrees, and the hydrology major is designed to provide students with a highly competitive education to get into graduate school. At the lower division level, you will complete foundational courses in mathematics, natural sciences and basic concepts of engineering. At the upper division, you will choose an area of concentration: surface hydrology, hydrogeology, remote sensing, water management or water quality. Depending on your special concentration, you may focus more intensively on running water, groundwater, water contamination and restoration or the use of computers and other technological systems in hydrology.Job opportunities in hydrology exceed the available supply of trained hydrologists. Students commonly obtain internships and jobs with state and federal agencies, private consulting firms, environmental interest groups, irrigation districts, and utility companies. Federal agencies hiring hydrologists include the U.S. Geological Survey, U.S. Department of Agriculture (Fish & Wildlife, Agricultural Research, Forest Service, and National Resource Conservation Service), Environmental Protection Agency, and national research laboratories (Lawrence Livermore National Laboratory, Lawrence Berkeley National Laboratory). State and local agency employers include California's Departments of Water Resources, Conservation, Fish & Game, and Toxic Substances as well as the Water Resources Control Board and Regional Water Quality Control Boards. To obtain higher levels of responsibility and salary, hydrologists often seek advanced degrees, and the hydrology major is designed to provide students with a highly competitive education to get into graduate school.