Irrigated agriculture has a long history in the Western United States, beginning with Native American Indians. After passage of the Reclamation Act of 1902, the United States Government began building and subsidizing irrigation projects to foster settlement and development of the arid and semi-arid areas of the Western United States (National Research Council, 1989). Precipitation in the mountainous areas of the West (fig. 1) is stored in reservoirs and used for irrigation of farmland. With the development of irrigated agriculture, unforeseen environmental problems have occurred.
Additional publication details
|Publication Subtype||USGS Numbered Series|
|Title||Using geochemical and statistical tools to identify irrigated areas that might contain high selenium concentrations in surface water|
|Series title||Fact Sheet|
|Publisher||U.S. Geological Survey|
|Contributing office(s)||Utah Water Science Center, WY-MT Water Science Center|
|Public Comments||National Irrigation Water Quality Program|