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This map is for citizens, journalists, legal professionals, policy analysts, institutional ratepayers, farmers, and water professionals who seek a comprehensive comparison of water usage in our state. By providing an intuitive and searchable interface, we hope to advance the understanding of the geographic distribution of water resources for all stakeholders.
Data on water rights in California is difficult to navigate, impossible to query, and is not provided in a machine-readable format. This modest prototype demonstrates that we can do better. This is a first in a series of interactive maps that will consolidate data from disparate agencies, and bring clarity to how water is managed, governed, and distributed in the state. ca.statewater.or
Currently, water rights holders claim they divert in aggregate approximately 250 million acre feet of water each year.
California receives 71 million acre feet of usable water from annual precipitation