State Water Project Facilitated Non-Project Water Transfers

A water transfer is a voluntary sale of water proposed and initiated by a willing seller who has legal rights to a supply of water to interested buyers within California. It usually takes place in relatively dry years, when only existing contractual water cannot meet the water demand. The Seller must take specific actions within the Seller’s service area to make this water available to the buyers as "new water" in the system. In other words, the transfer water would not appear in the watercourse absent the transfer.

The California Department of Water Resources (DWR) helps facilitate water transfers that require conveyance through State Water Project facilities or requires DWR approval pursuant to the Water Code Section 1810. A detailed description of the technical information for preparing water transfer proposals can be found in the Draft Water Transfer White Paper. The preparation and review of water transfer proposals in accordance with guidance in the Draft Water Transfer White Paper takes place through an online web application, Water Transfer Information Management System (WTIMS). The dataset presented here is compiled from water transfer data available at WTIMS.

This dataset provides historical short-term water transfer information including the seller’s agency and their water rights (pre-1914 or post-1914), buyer’s agency, type of water transfer such as reservoir release, cropland idling, groundwater substitution, amount of transfer water made available from seller, and the amount of transfer water available at the point of transfer. Temporal coverage of this dataset is from 2008 to present. A web-based application is also provided to help with the historical water transfer data search.

Organization

California Department of Water Resources

DWR manages California's water resources, systems, and infrastructure, including the State Water Project (SWP), in a responsible, sustainable way.

Historical SWP Facilitated Non-Project Water TransfersWeb App
This dataset is hosted by Water Transfer Information Management System...
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Additional Info

Field	Value
Homepage URL	https://info.water.ca.gov/wtims/
Contact Name	Water Transfer Conveyance Unit
Contact Email	[email protected]
Frequency	Irregular
Public Access Level	Public
Limitations	The Department of Water Resources shares information on the water as a public service. The Department strives to ensure that all technical data and other information made available to the public through this web site are accurate, complete and in conformance with the California Public Records Act. Neither the Department nor the State of California, however, assumes any legal responsibility for the accuracy or completeness of the information contained on this site. Persons using information from this site for official purposes, or other purposes, for which accuracy and completeness are required, are hereby notified that they should first verify the information with the public records or other primary sources from which the information was obtained. By using this dataset, you agree to have read and accepted our Conditions of Use and Privacy Policy.
Temporal Coverage	2008 - Present
Spatial Coverage
Bounding Coordinate	North Bounding Coordinate: 41.96357 East Bounding Coordinate: -113.92822 South Bounding Coordinate: 32.35676 West Bounding Coordinate: -124.60693
Last Updated	April 18, 2024, 16:47 (UTC)

State Water Project Facilitated Non-Project Water Transfers

Data and Resources

Additional Info