Reclamation Water Storage Projects: Section 4007 of the Water Infrastructure Improvements for the Nation Act [Updated October 15, 2021] [open pdf - 523KB]
From the Document: "Congress created a new authority for the Bureau of Reclamation (Reclamation, part of the Department of the Interior) to build new water storage projects in Section 4007 of the Water Infrastructure Improvements for the Nation Act (WIIN Act; P.L. 114-322). The authority provides federal support for the construction of new and augmented surface water storage projects in the 17 arid 'reclamation states.' As of October 2021, Congress had appropriated $603 million for these projects, and Reclamation had allocated (and Congress had approved) $511 million to 13 projects in 3 states. Allocation of remaining appropriations is subject to further congressional action."
CRS In Focus, IF10626
Congressional Research Service: https://crsreports.congress.gov/