With the West's limited freshwater supplies experiencing increasing pressure from agricultural, environmental, recreational, and urban demands, as well as the effects of climate change on precipitation patterns, effective management of water is becoming a more critical issue. Private leases and sales of water as part of water markets provide one option for water management. The Water Transfer Data Base, funded by the National Science Foundation and the California Water Resources Research Center and presented by the Bren School, is the only comprehensive accounting of water trading between 1987 and 2008 in the 12 Western States. As such, it is a valuable tool for researchers and others interested in the extent and pattern of voluntary water exchanges in the West. The data include trades involving agriculture, urban, recreational, and environmental uses; the number and amounts of water involved; and the prices paid. Presenting these data as a public service is an important part of the extension mission of the University of California, as well as that of the Water Policy program at the Bren School. Please follow the links below to see an introduction to the data and the data presented in an Excel spread sheet.
Water Transfer Data (Excel Spread Sheet)