The U.S. Bureau of Reclamation (USBR) and the California Department of Water Resources (CDWR) operate the Central Valley Project (CVP) and State Water Project (SWP) within a complex legal environment. Both projects are subject to both federal and state laws, and the relevant laws include generally applicable laws that cover but are not limited to the reclamation program, laws specific to the reclamation program, and laws specific to the Projects (Benson, 2012). This appendix summarizes the Projects’ legal environment, beginning with general and foundational principles and then describing specific applicable laws. It augments the Chapter 1 discussion of the laws and regulations that affect project operation.
On the whole, this legal system is designed to achieve what the Sacramento–San Joaquin Delta Reform Act of 2009, a California statute, describes as the “coequal goals” of water supply and environmental protection. However, it is not a simple balancing system, and in some circumstances, particular goals—often environmental protection requirements—theoretically hold primacy over water-supply commitments.
USBR is a federal agency, and like all federal agencies, it was created, and its authority is defined and bounded, by federal statutes (CDWR has the same status under state law). The Reclamation Act of 1902 authorized the creation of what was then called the “Reclamation Service,” and the agency initially was a subagency within the U.S. Geological Survey. In 1907, it became a separate agency within the Department of the Interior.1
Because the CVP involves many different units and was constructed over a multi-decade period, it owes its existence to many different pieces of legislation. USBR’s website provides a concise summary of this legislation,2 part of which is below:
The state legislature passed the Interior Region 10 California-Great Basin California Central Valley Project Act in 1933. The Act authorized the sale of revenue bonds to construct the project, but during the Great Depression, bonds didn’t sell.
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1For additional information on this history, see The Bureau of Reclamation: A Very Brief History, https://www.usbr.gov/history/borhist.html.
2About the Central Valley Project, U.S. Bureau of Reclamation, https://www.usbr.gov/mp/cvp/about-cvp.html.
With the Rivers and Harbors Act of 1935, the federal government assumed control of the project and its initial features were authorized for construction by the U.S. Army Corps of Engineers. Funds for construction of the initial features of the Central Valley Project were provided by the Emergency Relief Appropriation Act of 1935 (49 Stat. 115). The project was authorized by a finding of feasibility by the Secretary of the Interior and approved by the President on December 2, 1935, for construction by Reclamation.
When the Rivers and Harbors Act was reauthorized in 1937 (50 Stat. 844, 850), Reclamation took over CVP construction and operation, and the project became subject to Reclamation law.
. . . Additional authorizations were made under the Rivers and Harbors Act of October 17, 1940 (54 Stat. 1198, 1199) and:
- American River features were authorized under the act of October 14, 1949 (63 Stat. 852).
- The Sacramento Valley Canals were authorized under the act of September 26, 1950 (64 Stat. 1036).
- The Trinity River Division was authorized by Public Law 386, 84th Congress, 1st session, and approved August 12, 1955.
- The San Luis Unit, West San Joaquin Division, was authorized as a part of the Central Valley Project on June 3, 1960, Public Law 86-488 (74 Stat. 156).
- The Auburn-Folsom South Unit of the American River Division was authorized by Public Law 89-161 (79 Stat. 615) on September 2, 1965.
- The Tehama-Colusa Canal enlargement, under the Sacramento River Division, was authorized in Public Law 90-65 (81 Stat. 167), August 19, 1967.
- San Felipe Division features were authorized by Public Law 90-72 (81 Stat. 173), signed on August 27, 1967.
- The Allen Camp Unit, Pit River Division, was authorized on September 28, 1976, by Public Law 94-423 (90 Stat. 1324).
- The New Melones Unit, East Side Division, was officially transferred to Reclamation from the Corps by Public Law 87-874 in November 1979.
In addition to the legislation that created the agency and adding units, USBR is governed by many legal provisions affecting its contracting arrangements, rate-setting, and payment policies—as is CDWR. For the most part, those laws are not relevant to the Committee’s work and are not described here. Readers can obtain more information about those laws from USBR’s website for the CVP.3
USBR projects, including the CVP, generally operate to serve legislatively defined purposes. As USBR explains, “Under the 1937 Act, the CVP’s dams, powerplants, canals, and other facilities had three purposes: (1) regulate rivers and improve flood control and navigation, (2) provide water for irrigation and domestic use, and (3) generate power. Under later reauthorizations and legislation for specific project additions, additional project purposes were added—recreation, fish and wildlife enhancement, and water quality improvements.”4 Because these purposes sometimes conflict, much of USBR’s work involves balancing different goals.
CDWR’s management of the SWP is also subject to sometimes-conflicting obligations. The project’s primary purpose is water supply, but governing laws also prioritize hydropower generation, recreation, and environmental protection.
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3Laws, Regulations, and References, U.S. Bureau of Reclamation, https://www.usbr.gov/mp/cvp/laws-regs-ref.html.
4About the Central Valley Project, U.S. Bureau of Reclamation, https://www.usbr.gov/mp/cvp/about-cvp.html.
Both projects are governed by California water-rights law and by associated regulatory provisions. State laws clearly apply to the SWP because it is a state project and CDWR is a state agency. However, those laws also apply to federal project operations. Section 8 of the Reclamation Act of 1902 directs USBR to obtain and exercise its water rights “in conformity” with state law.5 In multiple cases, courts have held that this provision requires USBR to comply not only with state law defining water rights but also with state laws regulating the exercise of water rights.6 Somewhat similarly, section 101(b) of Public Law 99-546 requires that CVP operations be consistent with California water quality standards unless such operational constraints are “not consistent with the congressional directives applicable to the project.”7
Because both agencies obtain their water rights under state law, they participate in California’s system of appropriative water rights. In a prior appropriation system, water users generally obtain rights by diverting water from a waterway and putting that water to beneficial and continual use. Prior appropriation prioritizes more senior water rights, meaning those rights must be satisfied before more junior users can obtain water.8 Since 1914—well before construction of the CVP and SWP—an applicant for a water right needed that right to be approved by the California State Water Resources Control Board (SWRCB), which exercises continuing supervisory authority over rights.9
This seniority system has important implications for the Projects. By the time CVP and SWP construction began, other water users already had obtained water rights in the Central Valley. Many of these rights predate 1914. California also recognizes riparian rights, which entitle riparian landowners to divert directly from waterways.10 California law prioritizes riparian rights over appropriative rights, except when the water that riparian-right holders would like to divert would not be present at all unless an appropriator had stored it in an upstream reservoir.11 This means that the Projects share the Central Valley with many water users whose rights take priority over those of USBR and CDWR. Many of those pre-1914 and riparian users’ rights are only minimally documented, and California’s system of water-use reporting is a work in progress, which means that state regulators, USBR, and CDWR cannot always know how much water should be available to the projects.12
California statutory law bolsters these protections for other water users. California has enacted a series of “area of origin” laws, which prioritize in-basin uses over exports. While these laws have rarely been litigated, they do establish additional boundaries on the projects’ ability to export water.13 Similarly, a series of federal and state laws—in addition to the Clean Water Act and the Porter-Cologne Water Quality Control Act, both of which we discuss below—seeks to protect other in-Delta water users from the salinity impacts water exports could create.14
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5See 43 U.S.C. § 383. Section 383 states,
Nothing in this Act shall be construed as affecting or intended to affect or to in any way interfere with the laws of any State or Territory relating to the control, appropriation, use, or distribution of water used in irrigation, or any vested right acquired thereunder, and the Secretary of the Interior, in carrying out the provisions of this Act, shall proceed in conformity with such laws, and nothing herein shall in any way affect any right of any State or of the Federal Government or of any landowner, appropriator, or user of water in, to, or from any interstate stream or the waters thereof.
6See, e.g., California v. United States, 438 U.S. 645, 650, 678 (1978); Natural Resources Defense Council v. Patterson, 333 F.Supp.2d 906, 913-14 (E.D. Cal. 2004).
7Pub. L. 99-546, 100 Stat. 3050 (1986).
8In practice, gaps in monitoring and enforcement sometimes mean that junior appropriators can take water to which their entitlement is questionable.
9See California Farm Bureau Federation v. State Water Resources Control Bd., 274 P.3d 112, 117-18 (Cal. 2011).
10See Water Rights: Frequently Asked Questions, California State Water Resources Control Board, https://www.waterboards.ca.gov/waterrights/board_info/faqs.html#toc178761088.
11See In re Waters of Long Valley Creek Stream System, 559 P.2d 656, 660 (1979) (holding that even “a dormant riparian right is paramount to active appropriate rights.”).
12See Michael Kiparsky et al., 2021, Piloting a Water Rights Information System for California (describing inadequacies in existing water rights information).
13See Craig M. Wilson, 2013, California’s Area of Origin Laws, https://www.waterboards.ca.gov/board_info/agendas/2013/oct/100813_7origin.pdf.
14E.g., Delta Protection Act of 1959, Stats. 1959, Ch. 1766 (codified at Cal. Water Code §§ 12200 – 12204).
USBR distributes water to end users through contracts. Those contracts generally specify quantities of water that USBR will try to deliver and prices that recipients will pay. They also typically contain shortage provisions, which allow USBR to deliver less than the full contractual amount if conditions—including environmental restrictions—prevent USBR from doing so.15 Some of the contractors, those known as “Settlement” and “Exchange” Contractors, are entities that gave up their senior water rights in return for promises of service by the CVP.16 When USBR allocates water, the Settlement and Exchange Contractors hold seniority over USBR’s other contracts, which means their needs must be satisfied first.17
USBR’s water rights describe fixed quantities of diversions, and its contracts with the entities it supplies specify delivery amounts. However, neither of these amounts is a guarantee. USBR cannot divert water unless that water is available after more senior users and riparians have taken their shares. In addition, USBR’s rights and contractual obligations are limited by state and federal environmental laws and by California’s requirements that water use be reasonable and consistent with the state’s public trust doctrine.18
Similar constraints apply to SWP projects. The contracts specify maximum entitlements, but they do not obligate CDWR to deliver the full contract amount, and, as discussed above, CDWR rarely does so. Beyond limitations on the physical availability of water, CDWR’s deliveries also can be limited by environmental laws, the public trust doctrine, and reasonable use requirements.19
Project operations are constrained by a variety of environmental laws, the most important of which address water quality and endangered species protection.
The most important constraints on project operations come from federal and state water quality laws. The federal Clean Water Act establishes a national regime for water quality protection, and it allows states to take the lead in implementing many elements of the regulatory scheme.20 Through the Porter-Cologne Water Quality Control Act21 and associated administrative programs, California has taken on Clean Water Act primacy, and in some ways, Porter-Cologne establishes more extensive requirements than federal law.22 Because of this substantial overlap and intertwinement, the discussion below addresses both laws simultaneously.
For the CVP and SWP, the most important water quality requirements come from water quality standards. Both the Clean Water Act and Porter-Cologne direct the state to establish water quality standards.23 Those standards identify desired beneficial uses of waterways and set protective criteria, some qualitative and some quantitative,
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15See O’Neill v. United States, 50 F.3d 677, 684 (9th Cir. 1995). (“We conclude that the contract’s liability limitation is unambiguous and that an unavailability of water resulting from the mandates of valid legislation constitutes a shortage by reason of ‘any other causes.’”)
16See History of SJRECWA, San Joaquin River Exchange Contractors Water Authority, https://www.sjrecwa.net/about/history/; Sacramento River Settlement Contractors, https://sacriversc.org/.
17See, e.g., Reclamation Increases 2024 Central Valley Project Water Supply Allocations, Bureau of Reclamation, https://www.usbr.gov/newsroom/news-release/4782.
18See Northern Cal. Water Ass’n v. State Water Resources Control Bd., 230 Cal. Rptr. 3d 142, 166 (Cal. Ct. App. 2018). As the court explained, “[T]he USBR operates the CVP and allocates CVP water subject to a comprehensive scheme of environmental statutes and regulations, and various state and federal regulations. . . . Moreover, the CVP contractors take their interest in the USBR’s water rights subject to these legal obligations… and the USBR cannot give away more than it has.”
19See State Water Resource Control Bd. Cases, 39 Cal. Rptr. 3d 189, 294 (2006). (“[B]ecause the rights of an appropriator are always subject to the public trust doctrine …the same is true of the rights of a person who contracts with an appropriator for the use of the water appropriated.”)
20See 33 U.S.C. §§ 1251 – 1389.
21Cal. Water Code §§ 13000 – 16104.
22The most notable differences pertain to regulation of nonpoint source pollution, which is not a central focus of this Committee. See Cal. Water Code § 13369.
2333 U.S.C. § 1313; Cal. Water Code 13241.
designed to ensure the protection of those beneficial uses, all with the overarching goal of sustaining or improving water quality. The state then implements those protections through water quality permitting. Importantly for the projects, California also uses its oversight of water rights to implement water quality standards.24 That is, water quality is regulated via a water rights decision called D-1641 (California State Water Resources Control Board, 1999), which is intended to protect in-Delta water uses and fish and wildlife habitat. Some water quality objectives are accomplished via pumping restrictions for both the CVP and SWP (Old and Middle River Flow Management Action—see Chapter 3). Other water quality regulations stemming from water right D-1641 include requirements for the location of X2 for fall months with the intent to ensure suitable habitat for native fish (Summer-Fall Habitat Action—see Chapter 4).
Key beneficial uses of the Delta include supplying water for in-Delta farms and drinking water to urban areas with intakes in the western Delta, and both of those uses require water with low salinity.25 The location of the freshwater-saltwater interface also is important for many Delta species, and the Clean Water Act treats “biological integrity” as an element of water quality, as does California law.26 The state has long used restrictions on diversions, including diversion by USBR, to protect these beneficial uses, and courts have upheld the state’s ability to do so.27
The federal and state Endangered Species Acts (ESAs) also have important implications for project operations. Those implications arise partly because many state- and federally listed species are present in, or are affected by conditions in, the Bay-Delta watershed. And they extend to the SWP—even under provisions that do not typically apply to state activities—because state and federal project operations are so intertwined.
Both acts prohibit “take” of listed species.28 A “take,” under federal or state law, is an action that, among other possibilities, kills, wounds, harms, or captures a protected species.29 The statutes also contain exemptions to these prohibitions, but obtaining coverage under the exemptions requires USBR to comply with the procedural and substantive requirements of Section 7 of the federal ESA.30
Section 7 establishes two main prohibitions, a set of procedural requirements, and one key exception. Section 7 prohibits federal agencies from taking actions that are likely to put a species’ survival in “jeopardy” or to adversely modify its “critical habitat.”31 It also requires agencies taking actions that might adversely affect listed species to undergo a process called “consultation,” through which the agency obtains, from the U.S. Fish and Wildlife Service (USFWS) or the National Oceanic and Atmospheric Administration National Marine Fisheries Service (NMFS), a “biological opinion” explaining whether the proposed action will cause jeopardy or adverse modification.32 If the wildlife agency reaches a jeopardy or adverse modification determination, then it can propose a “reasonable and prudent alternative,” which is an alternative way to proceed with the project without causing jeopardy or adverse modification.33 Completion of a consultation process also allows USBR to obtain “incidental take authorization,” which provides legal protections for takes.34 However, that protection is conditioned on com-
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24See United States v. State Water Resources Control Bd., 227 Cal. Rptr. 161, 166 (Cal. Ct. App. 1986).
25State Water Resources Control Board, Water Quality Control Plan for the San Francisco Bay/Sacramento-San Joaquin Delta Estuary 9-21 (2018).
2633 U.S.C. § 1362(19); Cal. Water Code § 13050(g); see PUD No. 1 of Jefferson County v. Wash. Dept. of Ecology, 511 U.S. 700, 719-20 (1994) (rejecting a distinction between water quantity and water quality as “artificial”).
27See United States v. State Water Resources Control Board, 227 Cal. Rptr. at 166.
2816 U.S.C. § 1538; Cal. Fish & Game Code § 2080.
2916 U.S.C. § 1532(19); Cal. Fish & Game Code § 86.
30See 16 U.S.C. § 1536(b)(4); Cal. Fish & Game Code § 2080.1 (making federal-law incidental take statement or incidental take permit a shield against state-law take liability).
3116 U.S.C § 1536(a)(2).
3216 U.S.C. § 1536(a)-(d).
3316 U.S.C. § 1536(b)(3)(A).
3416 U.S.C. § 1536(b)(4).
pliance with “reasonable and prudent measures,” which are specific measures defined in the biological opinion and designed to minimize the extent of take.35
All of these requirements affect day-to-day project operations. The Projects take species, most visibly through entrainment at the pumps, and therefore cannot operate without incidental take authorization. For that reason, and also because CVP operations are federal actions that affect listed species, USBR and CDWR must consult on project operations. Across the nation, consultations very rarely lead to jeopardy and adverse modification findings, largely because the agencies usually negotiate over project changes that will avoid the need for such a finding. However, for several years, the Projects were a rare exception to those norms. In 2004, USFWS issued biological opinions that did not find jeopardy or adverse modification, but those opinions were challenged in court and set aside.36 In 2009, USFWS and NMFS issued biological opinions finding jeopardy and adverse modification, and from then until 2019, the CVP and SWP operated under reasonable and prudent alternatives.37 From 2019 until 2024, USBR operated the CVP under new biological opinions that do not find jeopardy but that contained a range of constraining rules for project operations.38 In 2024, USBR finalized another reconsultation leading to new biological opinions for the listed species (NMFS, 2024; USFWS, 2024) and modifications to the long-term operations of the CVP (USBR, 2024) and SWP (CDFW, 2024).
USBR also must comply with the National Environmental Policy Act (NEPA), although NEPA is less important than water quality and endangered species laws to ongoing operations. NEPA requires a federal agency taking a “major… action that may significantly affect the quality of the human environment” to prepare an environmental impact statement (EIS) for that action.39 An EIS is a detailed review of the environmental setting for the project, the project’s likely environmental impacts, and alternatives to the proposed project. The agency must allow public comment on a draft statement. Once the process is complete, NEPA does not impose any substantive constraints.40
NEPA applies to USBR if it makes major changes to CVP infrastructure or agrees to new contracts. It does not apply, however, to ongoing operations, so long as those operations are generally consistent with historic operations (Benson, 2012). In other words, NEPA’s requirements apply when an agency initially decides to take some new action, but the agency has no obligation to continually update its NEPA studies as it carries out the action.
The California Environmental Quality Act (CEQA) does not govern USBR’s operations, but it does govern actions taken by CDWR and by the CVP and SWP contractors (all of which are government entities). Broadly speaking, CEQA establishes requirements similar to NEPA, but there are important differences. Most significantly, CEQA does impose substantive constraints; it requires action agencies to avoid or mitigate significant environmental impacts if it is feasible to do so. In addition, the judicial culture surrounding CEQA is quite different from the federal judiciary’s approach to NEPA. The United States Supreme Court has never ruled in favor of a NEPA plaintiff and writes somewhat dismissively about the statute.41 The California Supreme Court, in contrast, has often ruled in favor of CEQA plaintiffs. That culture means that agencies often prepare full-length CEQA documents for which federal agencies would be highly unlikely to prepare EISs.
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35Id.
36Natural Resources Defense Council v. Kempthorne, 506 F. Supp. 2d 322 (E.D. Cal. 2007); Pacific Coast Fed. of Fishermen’s Assoc. v. Gutierrez, 606 F.Supp.2d 1122 (E.D. Cal. 2008).
37NMFS Biological Opinion on Long Term Operation of the Central Valley Project and the State Water Project 10 (2019) (table summarizing the history of NMFS consultations addressing the CVP); USFWS, Central Valley Project and California State Water Project Consultation, https://www.fws.gov/project/central-valley-project-and-california-state-water-project-consultation.
38NMFS Biological Opinion on Long Term Operation of the Central Valley Project and the State Water Project (2019).
3942 U.S.C. § 4332(C).
40See Robertson v. Methow Valley Citizen’s Council, 490 U.S. 332, 350 (1989) (emphasizing NEPA’s lack of a substantive mandate).
41See, e.g., Seven County Infrastructure Coalition v. Eagle County, Co., __ S. Ct. __ (2025).
California Fish and Game Code section 5937 requires operators of dams to maintain below-dam fish populations “in good condition.” In a series of cases, some involving the CVP, California and federal courts have interpreted that requirement to mean that fisheries must be maintained at historic levels.42 Federal courts also have determined that this requirement applies to USBR’s operation of the CVP.43
To date, Fish and Game Code section 5937 has only been directly applied to CVP flows in the San Joaquin River, where lengthy litigation and subsequent settlement led to a restoration program that included requirements for increased instream flows, and to other streams outside the Central Valley. By its terms, however, it applies to all below-dam fisheries, which means it could affect USBR or CDWR operations anywhere in California where either agency operates a dam.
Congress enacted the Central Valley Project Improvement Act (CVPIA) in 1992. The Act’s primary goal was to rebalance water delivery and environmental protection, and it sought to do this by providing more secure water supplies for wildlife refuges, establishing restoration goals for salmon populations, and dedicating more water to environmental flows.44 The statute also seeks to promote increased operational flexibility and to facilitate voluntary water transfers. Much of the legal controversy about implementing the Act has pertained to its environmental flow requirements, with consumptive water users arguing that flow releases should count against the CVPIA’s environmental-flow budget.45
The preceding discussion might convey the impression that management of the Bay-Delta is constrained by laws that, while complicated, provide clear marching orders once they are clearly understood. The reality, however, is different. Determining how laws apply to specific circumstances can be quite difficult and is often contested, particularly if the effects of management actions on species are not fully understood. In addition, different stakeholders have different views about the appropriate roles of regulatory controls and enforcement mechanisms, and those disagreements often become intertwined with debates about the legal requirements. Those disagreements have been ongoing for decades, and sometimes stakeholders resolve them through some sort of negotiated arrangement rather than through regulatory enforcement or litigation.
A good example of these debates, and of the potential for different ways to resolve challenges, is the long-running debate over “voluntary agreements” or, more recently, “Agreements to Support Healthy Rivers and Landscapes.” The proposed voluntary agreements are somewhat like detailed settlement agreements reached in the shadow of regulatory constraints. They would specify sets of actions and regulatory requirements that would serve as an alternative to the regulatory constraints that the SWRCB would otherwise impose on water right holders. Without a voluntary agreement, the SWRCB typically would impose these constraints by updating water quality standards and then using those standards to change water right permits and licenses, most likely by limiting diversions and thus preserving higher levels of flow. A voluntary agreement, if done well, could substitute other protective mechanisms, such as habitat restoration, that the SWRCB might not be able to order directly but that might provide greater benefits for fish at a lower cost to diverters.
For several reasons, voluntary agreements are controversial. Many environmental advocates disagree that the currently proposed voluntary agreements are protective enough and worry that while voluntary agreement development has been underway—a process that has been ongoing for over a decade—water quality standards
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42See Natural Resources Defense Council v. Patterson, 333 F. Supp. 2d 906, 916. 924 (E.D. Cal. 2004); California Trout, Inc. v. Superior Ct., 266 Cal. Rptr. 788, 802 (Cal. Ct. App. 1990).
43Patterson, 333 F. Supp. 2d at 913-14.
44See San Luis & Delta Mendota Water Auth. v. U.S., 672 F.3d 676, 684-85 (9th Cir. 2012) (summarizing the act’s requirements).
45Id.
were not being updated. Environmental advocates also have been frustrated with the voluntary agreement process, arguing that they were insufficiently involved or that their views were being ignored. Meanwhile, many water users are frustrated with the slow pace of voluntary agreement development, and they have argued that the proposed voluntary agreements would be more protective than the status quo and provide a better compromise than would likely emerge from regulatory action or litigation.
This report expresses no opinion on how those controversies should be resolved. This discussion is used just to illustrate a key, and lasting, point about the law governing the Delta. The process of turning statutes and court decisions into actual implementation is often filled with controversy and heavily determined by discretionary judgments, both scientific and political, and negotiations.
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Although this summary may seem complex, it actually understates both the complexity and the dynamism of the legal regimes governing CVP and SWP operations. For reasons of space, not every relevant law is described. Each law also contains layers of intricacies, and implementing regulations and court decisions adds additional layers (while also clarifying some questions that otherwise would be ambiguous). New legislation, regulations, and court decisions also can and probably will change elements of these laws. Nevertheless, the core point of this discussion—that governing laws both engage in and require multifaceted balancing acts—will likely remain a constant.
Benson, R. D. 2012. “Federal Water Law and the ‘Double Whammy’: How the Bureau of Reclamation Can Help the West Adapt to Drought and Climate Change.” Ecology Law Quarterly 1049–1053. https://www.jstor.org/stable/24113484.
California State Water Resources Control Board. 2019. Water Right Decision 1641. https://cawaterlibrary.net/document/water-rights-decision-1641-d-1641/.
CDFW (California Department of Fish and Wildlife). 2024. California Endangered Species Act Incidental Take Permit No. 2081-2023-054-00 Long-Term Operation of the State Water Project in the Sacramento-San Joaquin Delta. https://water.ca.gov/-/media/DWR-Website/Web-Pages/News/Files/PDF--2081-2023-054-00-SWP-ITP_Final_20241104.pdf.
NMFS (National Marine Fisheries Service). 2024. Endangered Species Act Section 7(a)(2) Programmatic Biological Opinion for the Reinitiation of Consultation on the Long-Term Operation of the Central Valley Project and State Water Project. https://s3.amazonaws.com/media.fisheries.noaa.gov/2024-12/lto-biological-opinion-appendices-2024.pdf.
USBR (U.S. Bureau of Reclamation). 2024. Final Environmental Impact Statement for the Long-Term Operation of the Central Valley Project and State Water Project. November 2024. Chapter 0, Executive Summary, Pp, 0–44. https://www.usbr.gov/mp/nepa/includes/documentShow.php?Doc_ID=55436.
USFWS (U.S. Fish and Wildlife Service). 2024. 2024 Biological Opinion for the Reinitiation of Consultation on the Coordinated Operations of the Central Valley Project and State Water Project. https://cawaterlibrary.net/document/2024-biological-opinion-reinitiation-of-consultation-on-the-coordinated-long-term-operation-of-the-central-valley-project-and-state-water-project/.