California 2025-2026 Regular Session

California Assembly Bill AB1466

Introduced
2/21/25  
Refer
3/17/25  
Report Pass
4/1/25  
Refer
4/2/25  
Report Pass
4/9/25  
Refer
4/9/25  
Report Pass
4/22/25  
Refer
4/22/25  
Report Pass
5/7/25  
Engrossed
6/4/25  
Refer
6/5/25  
Refer
6/18/25  
Report Pass
6/26/25  
Refer
6/26/25  
Report Pass
7/9/25  
Refer
7/9/25  
Report Pass
7/16/25  
Refer
7/17/25  
Enrolled
9/11/25  
Enrolled
9/11/25  
Chaptered
10/11/25  

Caption

Groundwater adjudication.

Impact

The legislative changes proposed in AB 1466 significantly alter the landscape of groundwater rights adjudication. By facilitating the treatment of minor water extraction claims separately, the bill aims to reduce the burden on individuals with minimal impact on groundwater supplies. Furthermore, it establishes a presumption of accuracy for claims of less than 100 acre-feet, placing the burden of proof on challengers. This could simplify legal processes for many water users, particularly those in agricultural sectors, who often rely on groundwater.

Summary

Assembly Bill No. 1466, also known as the Groundwater Adjudication Act, aims to reform the process of adjudicating groundwater rights by providing clearer procedures in California's civil courts. This bill updates existing laws by allowing courts to treat claimants who extract minor quantities of water separately from other parties, streamlining the adjudication process while safeguarding their rights. The bill requires the court to hold hearings on the exceptions and establishes a system for registering and managing these claims effectively.

Sentiment

The sentiment around AB 1466 appears to be largely positive, particularly among agricultural stakeholders and those advocating for efficient legal frameworks. Supporters argue that the bill enhances the fairness and accessibility of groundwater adjudication, allowing small claimants to manage their rights without being overwhelmed by comprehensive adjudication processes. However, there are concerns from some environmentalists and specific community groups who worry that it may dilute the scrutiny on larger claims and lead to over-extraction issues in some regions.

Contention

Notable points of contention include the proposed presumption of accuracy for minor claims, which raises concerns about the potential for misinformation if claimants overstate their true water use. Additionally, some critics voice apprehension about how the provision for technical reports required from groundwater sustainability agencies may add complexity or cost, particularly for local agencies tasked with data compilation at a reasonable expense. The balance between facilitating rights and protecting community resources remains a pivotal focus in discussions surrounding this bill.

Companion Bills

No companion bills found.

Previously Filed As

CA AB2125

Groundwater basin adjudication: notice.

CA HB2101

Supply and demand; assessment; groundwater

CA SB1202

Supply and demand; assessment; groundwater.

CA HB2271

Supply and demand; assessment; groundwater

CA AB2026

Water diversion: groundwater recharge: permit.

CA HB2990

Rural groundwater management areas; establishment

CA SB1742

Rural groundwater management areas; establishment.

CA HB2714

Rural groundwater management areas; establishment

CA SB1425

Rural groundwater management areas; establishment.

CA SB1520

Rural groundwater

Similar Bills

CA AB709

Sustainable Groundwater Management Act: groundwater sustainability plans.

CA AB929

An act to amend Section 10721 of, and to amend, repeal, and add Sections 10726.

CA AB2521

California Council on Science and Technology: water availability study: Central Valley.

AZ SB1520

Rural groundwater

CA AB1413

An act to amend Sections 832, 834, 838, 849, and 850 of the Code of Civil Procedure, and to amend Sections 10726.

AZ HB2758

McMullen Valley; eligible entities; groundwater

CA AB1044

Tule East Groundwater Sustainability Agency Act.

CA AB568

Tule East Groundwater Sustainability Agency Act.