SB 224: Department of Water Resources: water supply forecasting. - California

09/02/25 - Amended Assembly → 09/13/25 - Enrolled · 2 edits · Sep 13, 2025

MINOR

SB 224 was enrolled for gubernatorial signature with one major substantive change: Section 242, which required the Department of Water Resources to hold at least two open and public meetings annually (starting in 2027) to present its operational decisions and rationale for water supply management, was removed from the final bill. The remaining provisions (Sections 240 and 241) requiring updated climate-change-informed forecasting models and documented operating procedures are unchanged. All other differences are procedural formatting reflecting the bill's passage through both chambers.

Scope change

The bill's scope narrowed by removing the public meeting and stakeholder engagement requirement (former Section 242). The remaining obligations on the Department of Water Resources (updated forecasting models by January 1, 2027, documented operating procedures, and annual legislative reports through January 1, 2032) are unchanged.

ENFORCEMENT

Section 242 was entirely removed. It had required the Department of Water Resources to hold at least two open and public meetings each year starting in 2027, presenting its operational decisions, rationale for water supply during the prior water year, and progress on implementing the new forecasting model. Meetings were to rotate among Bakersfield, Santa Clara County, Tulare, and southern California, with 60 days advance public notice posted online, and an annual report submitted to the Legislature.

TECHNICAL

Procedural formatting changes: amendment history headers removed, passage dates added (Senate passed September 11, 2025; Assembly passed September 9, 2025), and Governor receipt/approval signature blocks added in preparation for the bill being sent to the Governor.

05/23/25 - Amended Senate → 07/17/25 - Amended Assembly · 3 edits · Jul 17, 2025

MINOR

The Assembly amendment to SB 224 makes two key policy changes: it relaxes the water forecasting model requirement from adopting a brand-new model to updating existing models (now plural), and it reduces the annual public meeting obligation from five meetings to at least two, while also giving the department more flexibility in choosing meeting locations. These changes make the bill less prescriptive and reduce the compliance burden on the California Department of Water Resources.

REQUIREMENT

The department is now required to 'update its water supply forecasting models' (plural) rather than 'adopt a new water supply forecasting model' (singular). This shifts the obligation from creating an entirely new model to improving existing ones, giving the department more flexibility in how it modernizes its forecasting capabilities.

The number of required annual public meetings was reduced from five to at least two. The department must still present operational decisions and rationale for the state's water supply, but now at a minimum of two open and public meetings rather than five.

SCOPE

Meeting location options were restructured. Previously fixed locations (Redding, San Francisco, Tulare, and two in different southern California counties) were replaced with more flexible choices: one meeting in Redding or Bakersfield, one in San Francisco or Santa Clara County, one in Tulare, and one in southern California. This reduces the total number of distinct required locations from five to four and allows the department to rotate among alternatives.

09/13/25 - Enrolled → SB224 · 1 edit

MINOR

No substantive policy changes occurred between these two versions. The diff reflects a transition from a formally formatted enrolled legislative document to a web page presentation of the same bill text. All statutory provisions (Sections 240 and 241), the legislative counsel's digest, and all dates and requirements remain identical.

TECHNICAL

The document was reformatted from a traditional enrolled bill layout (with page numbers, chapter headings, and governor's receipt block) to a web page format that includes navigation menus, search tools, version history, and status tracking elements. The underlying legal text is unchanged.

07/17/25 - Amended Assembly → 09/02/25 - Amended Assembly · 3 edits · Sep 2, 2025

MINOR

The September 2025 amendment makes two substantive changes to SB 224: it shifts the water supply forecasting requirement from adopting a brand-new model to updating existing models, and it moves one of the required public meeting locations from Redding (northern California) to Bakersfield (southern California). The remaining changes are minor grammatical cleanups.

REQUIREMENT

The department is now required to 'update its water supply forecasting models and procedures' rather than 'adopt a new water supply forecasting model and procedures that better address the effects of climate change.' This lowers the bar from creating an entirely new system to improving existing ones.

SCOPE

One of the two rotating public meeting locations changed from the City of Redding (northern California) to the City of Bakersfield (southern Central Valley). The other location, County of Santa Clara, remains unchanged. This shifts public engagement toward southern California communities.

TECHNICAL

Removed the redundant phrase 'at at least a minimum of 2' and replaced it with 'a minimum of 2' in the public meeting requirement.

03/26/25 - Amended Senate → 05/23/25 - Amended Senate · 3 edits · May 23, 2025

MINOR

SB 224 was amended to significantly reduce the number of required public meetings on water supply operations from five to at least two, change the meeting locations from fixed to a rotating basis, and narrow the scope of what must be reported at those meetings. These changes reduce the transparency and public engagement requirements imposed on the state water department.

REQUIREMENT

The number of required open and public meetings was reduced from five to at least two per year.

Meeting locations changed from a fixed set (one each in San Francisco, Redding, Tulare, and two in southern California) to a rotating basis among those same locations, with the department choosing two per year.

SCOPE

The reporting requirement at public meetings was narrowed from reporting on 'the degree to which the department succeeded in achieving each of its policy goals' to specifically 'the degree to which the department succeeded in implementing the water supply forecasting model and procedures described in Section 240.'

03/11/25 - Amended Senate → 03/26/25 - Amended Senate · 1 edit · Mar 26, 2025

MINOR

The March 26 amendment to SB 224 adds a requirement that the Department of Water Resources report on its progress implementing the water supply forecasting model and procedures described in Section 240 during its annual public stakeholder meetings. This ties the public transparency obligations more directly to the forecasting model provisions earlier in the bill. All other changes are formatting, line renumbering, and page number adjustments.

REQUIREMENT

Section 242(a)(2) now requires the department to report not only on the degree to which it succeeded in achieving its policy goals, but also on implementing the water supply forecasting model and procedures described in Section 240, at its five annual public meetings.

01/27/25 - Introduced → 03/11/25 - Amended Senate · 3 edits · Mar 11, 2025

MINOR

The Senate amendment to SB 224 adds a new transparency requirement mandating that the Department of Water Resources establish and publicly publish specific criteria for determining when its updated water supply forecasting model has demonstrated sufficient predictive capability for use in each watershed. The remaining changes are renumbering of subdivisions to accommodate the new paragraph and minor formatting adjustments. This matters because it gives the public and Legislature a concrete benchmark for evaluating whether the department's new climate-change-adjusted forecasting model is actually ready before it is deployed.

REQUIREMENT

Section 240(a)(2) now requires DWR to establish and publish on its website the specific criteria it will use to determine when the updated water supply forecasting model has demonstrated sufficient predictive capability to be ready for use in each watershed. This was not present in the introduced version.

TECHNICAL

Section 240 subdivision (a) was split into paragraphs (1) and (2) to accommodate the new criteria requirement, and the former subdivision (b) was renumbered accordingly. Section 241(b) paragraphs were also renumbered for consistency.

Page numbering changed from 99 to 98 and header formatting was updated to reflect the amended status. These are non-substantive formatting changes.

Department of Water Resources: water supply forecasting.

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