I just posted an updated (18 June 2019) copy of this CRS report Here is the latest updated (21 June 2019) version of it: Central Valley Project: Issues and Legislation. The authors are Charles V. Stern and Pervaze A. Sheikh.
Download CRS_Report_CVP_Issues_21June2019
Summary
The Central Valley Project (CVP), a federal water project owned and operated by the U.S. Bureau of Reclamation (Reclamation), is one of the world’s largest water supply projects. The CVP covers approximately 400 miles in California, from Redding to Bakersfield, and draws from two large river basins: the Sacramento and the San Joaquin. It is composed of 20 dams and reservoirs and numerous pieces of water storage and conveyance infrastructure. In an average year, the CVP delivers more than 7 million acre-feet of water to support irrigated agriculture, municipalities, and fish and wildlife needs, among other purposes. About 75% of CVP water is used for agricultural irrigation, including 7 of California’s top 10 agricultural counties. The CVP is operated jointly with the State Water Project (SWP), which provides much of its water to municipal users in Southern California.
CVP water is delivered to users that have contracts with Reclamation. These contractors receive varying levels of priority for water deliveries based on several factors, including hydrology, water rights, prior agreements with Reclamation, and regulatory requirements. The Sacramento and San Joaquin Rivers’ confluence with the San Francisco Bay (Bay-Delta or Delta) is a hub for CVP water deliveries; many CVP contractors south of the Delta receive water that is “exported” from north of the Delta.Development of the CVP resulted in significant changes to the area’s natural hydrology. However, construction of most CVP facilities predated major federal natural resources and environmental protection laws. Much of the current debate related to the CVP revolves around how to deal with changes to the hydrologic system that were not significantly mitigated for when the project was constructed. Thus, multiple ongoing efforts to protect species and restore habitat have been authorized and are incorporated into project operations.
Congress has engaged in CVP issues through oversight and at times legislation, including provisions in the 2016 Water Infrastructure Improvements for the Nation (WIIN Act; P.L. 114-322) that, among other things, authorized changes to operations in an attempt to provide for delivery of more water under certain circumstances. Although some stakeholders are interested in further operational changes to enhance CVP water deliveries, others are focused on the environmental impacts of operations.
Various state and federal proposals are currently under consideration and have generated controversy for their potential to affect CVP operations and allocations. In late 2018, the State of California finalized revisions to its Bay-Delta Water Quality Control Plan. These changes would require that more flows from the San Joaquin and Sacramento Rivers reach the Bay-Delta for water quality and fish and wildlife enhancement (and thus would further restrict water supplies for other users). The changes have generally been opposed by the Trump Administration. At the same time, the Trump Administration is pursuing efforts to increase CVP water supplies for users, including changes to CVP operations under an October 2018 White House memorandum on western water supplies. Efforts to add or supplement CVP storage and conveyance are also being considered: The state is proposing a new water conveyance project (known as the California WaterFix) that would bypass the Bay-Delta and, under certain conditions, increase exports from north to south for some users. Additionally, new storage projects are under study by federal and state entities; these projects would aim to increase CVP and/or SWP water supplies.
In the 116th Congress, legislators may consider bills and conduct oversight on efforts to increase CVP water exports compared to current baselines. Congress is considering whether to approve funding for new water storage projects, and may also consider legislation to extend or amend previously enacted CVP authorities (e.g., WIIN Act authorities that are expiring or have exceeded their appropriations ceiling).
We will likely have another update shortly.
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