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AB-2026 • 2026

Water diversion: groundwater recharge: permit.

Water diversion: groundwater recharge: permit.

Budget Children Water
Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
Aguiar-Curry
Last action
2026-04-23
Official status
Re-referred to Com. on APPR.
Effective date
Not listed

Plain English Breakdown

The official source material does not provide specific details on the implementation of expanded definitions or consequences for improper tribal consultation.

Water Diversion for Groundwater Recharge

This law changes rules about diverting floodwaters for groundwater recharge, expands definitions related to water management, and simplifies permit processes.

What This Bill Does

  • Changes the conditions needed to exempt diversions of floodwaters for groundwater recharge from needing an appropriative water right if certain conditions are met, including conducting tribal consultation.
  • Expands the definition of 'floodflow' to include flows downstream of a dam that is releasing water for flood control purposes.
  • Exempts those diversions from requirements under the California Environmental Quality Act (CEQA) and lake or streambed alteration agreements if certain conditions are met, including conducting tribal consultation.
  • Simplifies permit processes for diverting water within or upstream of the Sacramento-San Joaquin Delta to underground storage by providing that inclusion of specified terms in an application satisfies the State Water Resources Control Board’s finding that water may be diverted and used without injury to legal users.
  • Expands the definition of 'minor application' to include applications by private entities under agreements with groundwater sustainability agencies.

Who It Names or Affects

  • Local and regional flood control agencies
  • Groundwater sustainability agencies
  • Private entities involved in water management

Terms To Know

Appropriative Water Right
The legal right to use water from a source, acquired by diverting the water for beneficial purposes.
Groundwater Recharge
The process of adding water to an aquifer to increase its water storage.

Limits and Unknowns

  • Does not specify what happens if tribal consultation is not conducted properly.
  • Effective date is not provided in the bill text.
  • Details on how the expanded definitions will be implemented are unclear.

Bill History

  1. 2026-04-23 California Legislative Information

    Re-referred to Com. on APPR.

  2. 2026-04-22 California Legislative Information

    Read second time and amended.

  3. 2026-04-21 California Legislative Information

    From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 12. Noes 0.) (April 20).

  4. 2026-04-20 California Legislative Information

    Re-referred to Com. on NAT. RES.

  5. 2026-04-16 California Legislative Information

    Read second time and amended.

  6. 2026-04-15 California Legislative Information

    From committee: Amend, and do pass as amended and re-refer to Com. on NAT. RES. (Ayes 11. Noes 0.) (April 14).

  7. 2026-04-13 California Legislative Information

    (Pending re-refer to Com. on NAT. RES.)

  8. 2026-04-13 California Legislative Information

    Assembly Rule 56 suspended.

  9. 2026-04-08 California Legislative Information

    Re-referred to Com. on W., P., & W.

  10. 2026-04-07 California Legislative Information

    From committee chair, with author's amendments: Amend, and re-refer to Com. on W., P., & W. Read second time and amended.

  11. 2026-03-23 California Legislative Information

    Re-referred to Com. on W., P., & W.

  12. 2026-03-19 California Legislative Information

    From committee chair, with author's amendments: Amend, and re-refer to Com. on W., P., & W. Read second time and amended.

  13. 2026-03-19 California Legislative Information

    Referred to Coms. on W., P., & W. and NAT. RES.

  14. 2026-02-18 California Legislative Information

    From printer. May be heard in committee March 20.

  15. 2026-02-17 California Legislative Information

    Read first time. To print.

Official Summary Text

AB 2026, as amended, Aguiar-Curry.
Water diversion: groundwater recharge: permit.
(1) Existing law declares that all water within the state is the property of the people of the state, but the right to the use of the water may be acquired by appropriation in the manner provided by law. Existing law requires the appropriation to be for some useful or beneficial purpose. Existing law provides, however, that the diversion of floodflows for groundwater recharge does not require an appropriative water right if certain conditions are met, including that a local or regional agency that has adopted a local plan of flood control or has considered flood risks as part of its most recently adopted general plan has given notice, as provided, of imminent risk of flooding and inundation of lands, roads, or structures. Existing law defines “floodflow” for these purposes to include circumstances in which flows would inundate ordinarily dry areas in the bed of a
terminal lake to a depth that floods dairies and other ongoing agricultural activities, or areas with substantial residential, commercial, or industrial development. Existing law applies those requirements to diversions commenced before January 1, 2029.
The California Environmental Quality Act (CEQA) requires a lead agency, as defined, to prepare, or cause to be prepared, and certify the completion of an environmental impact report on a project that it proposes to carry out or approve that may have a significant effect on the environment or to adopt a negative declaration if it finds that the project will not have that effect. CEQA also requires a lead agency to prepare a mitigated negative declaration for a project that may have a significant effect on the environment if revisions in the project would avoid or mitigate that effect and there is no substantial evidence that the project, as revised, would have a significant effect on the environment.
Existing law prohibits an entity from substantially diverting or obstructing the natural flow of, or substantially changing or using any material from the bed, channel, or bank of, any river, stream, or lake, or from depositing or disposing of certain material where it may pass into any river, stream, or lake, without first notifying the Department of Fish and Wildlife of that activity, and entering into a lake or streambed alteration agreement if required by the department to protect fish and wildlife resources, except as specified.
This bill would revise and recast those conditions required for the appropriative water right exemption for a diversion of floodflows for groundwater recharge, would apply the requirements to a diversion commenced before January 1, 2034, and would further exempt those diversions from the requirements of CEQA and requirements relating to lake or streambed alteration agreements, subject to
conducting tribal consultation, as provided. The bill would expand the definition of “floodflow” to include flows downstream of a dam that is releasing water for flood control purposes, as provided.
(2) Existing law requires the Department of Water Resources to operate the State Water Resources Development System, known as the State Water Project, to supply water to persons and entities in the state. Existing law designates as the Central Valley Project a system of works for the conservation, development, storage, distribution, and utilization of water, with incidental generation, transmission, and distribution of electric power.
This bill would provide that the inclusion of certain proposed terms in an application to divert water within or upstream of the Sacramento-San Joaquin Delta to underground storage pursuant to certain permits, and its adoption in the applicable permit, would satisfy the State
Water Resources Control Board’s finding that water may be diverted and used without injury to the legal users of water from the Central Valley Project or the State Water Project, including the United States Bureau of Reclamation, the Department of Water Resources, or any contractors to the project.
(3) Existing law requires the State Water Resources Control Board to consider and act upon all applications for permits to appropriate water, and requires the Division of Water Rights to conduct a field investigation of all minor protested applications, except under a specified circumstance. Existing law defines a “minor application” to include an application by a groundwater sustainability agency or local agency for a diversion previously authorized by a conditional temporary permit for diversion of surface water to underground storage, as specified, without complying with other procedures or provisions previously authorized by a temporary
permit.
Existing law, the Sustainable Groundwater Management Act, requires all groundwater basins designated as high- or medium-priority basins by the Department of Water Resources to be managed under a groundwater sustainability plan or coordinated groundwater sustainability plans, except as specified. Existing law requires a groundwater sustainability plan to be developed and implemented to meet the sustainability goal, established as prescribed.
This bill would expand that definition of minor application to include an application by a private entity under a memorandum of understanding or other agreement with a groundwater sustainability agency for specific diversions. The bill would create an additional exception from the requirement to conduct a field investigation if the application involves a diversion substantially similar to a diversion previously authorized by temporary permits for at least 5 years, involves no
greater amount of diversion and no other points of diversion than authorized in the last preceding temporary permits, and includes specified information based on the applicant’s experience under prior temporary permits, including specified documentation and proposed terms. The bill would also require the board to give public notice of the minor application within 30 days of the application’s filing, to allow 45 days from the date of the notice for the filing of comments, as provided, and to issue a decision within 180 days of the deadline for submitting comments on the application, as provided. The bill would require the board to approve the application if it determines by a preponderance of the evidence that the proposed diversion would not injure a legal user of water, as specified, and would not unreasonably affect fish, wildlife, or other instream beneficial uses. The bill would exempt the permit issued by the board pursuant to these provisions from CEQA and requirements relating to lake or streambed
alteration agreements, subject to specified conditions.
Existing law authorizes any person who has an urgent need to divert and use water to apply for, and authorizes the board to issue, a conditional, temporary permit, as prescribed. Existing law defines “urgent need” for these purposes.
This bill would expand the definition of “urgent need” to include, in a basin for which the Sustainable Groundwater Management Act requires a groundwater sustainability plan, the application of a local agency, groundwater sustainability agency, or private entity operating under a memorandum of understanding or other agreement with a groundwater sustainability agency, to divert and use water determined to be available using specified criteria, as provided, to augment the basin’s recharge in order to support implementation of the sustainability goal in that basin. The bill would exempt the board’s issuance of a temporary permit from CEQA and
requirements relating to lake or streambed alteration agreements, subject to specified conditions.
(4) Existing law requires the state water board to appoint a deputy director for the Division of Water Rights.
This bill would authorize a certain temporary permit to authorize the diversion to be initiated more than 180 days after date of issuance, except that authorization to divert would automatically expire 5 years after diversions commence, as provided. The bill would authorize the Chief Deputy Director of Water Rights to limit diversion under those temporary permits in favor of competing temporary permits based on, among other things, consideration of public interest, as provided.
(5) Existing law requires each person or entity who holds a permit or license to appropriate water, and each lessor of water, as provided, to pay an annual
fee according to a fee schedule established by the board, as specified.
This bill would require the board, in setting fees for minor applications and for temporary urgency permits, to set those fees at a level that encourages those applications. The bill would prohibit the board from requiring a separate application or fee for consumptive and nonconsumptive uses of diverted water.

Current Bill Text

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