Surface-water transfers and removals in the Pacific drainages of the United States

This data release contains a comprehensive, spatially referenced database of surface-water transfer and removal events in the Pacific drainages of the United States, which include the Columbia River basin, the Puget Sound basin, the coastal drainages of Washington, Oregon, and California, and the Central Valley of California. The database also includes mean annual estimates of the water diverted at each event. These estimates were mostly based on information available from the U.S. Geological Survey and the U.S. Bureau of Reclamation but also, for some events, from state and local water management agencies. While these estimates generally represent conditions between 1974 and 2014, the database includes information that can be used to obtain more recent estimates for most of the events. The database includes 77 transfers for power generation and other consumptive uses (totaling 27,383,000 acre-ft per year), 262 removals for irrigation and removals associated with in-stream loss to groundwater (totaling 31,454,000 acre-ft per year), and 129 removals for municipal water supply (totaling 9,986,000 acre-ft per year).