California 2025-2026 Regular Session

California Senate Bill SB639

Introduced
2/20/25  
Refer
3/5/25  
Refer
4/2/25  
Report Pass
4/8/25  
Refer
4/8/25  
Report Pass
4/30/25  
Report Pass
4/8/25  
Refer
4/30/25  
Refer
4/8/25  
Report Pass
4/30/25  
Refer
5/6/25  
Refer
4/30/25  
Engrossed
5/15/25  
Refer
5/6/25  
Refer
6/16/25  
Engrossed
5/15/25  
Refer
7/8/25  
Report Pass
7/16/25  
Refer
7/17/25  
Report Pass
8/29/25  

Caption

Zoning: Sacramento-San Joaquin Valley.

Impact

The bill explicitly prohibits local governments from approving new development agreements in flood hazard zones unless they can substantiate progress on flood protection systems. In the latest amendment, regions such as Marysville and parts of Sacramento will have until 2030 to meet these standards, extending the deadline previously set for 2025. This shift means that cities and counties need to improve their flood defenses significantly before allowing any new constructions in vulnerable locales, which impacts future development planning and economic activities in these regions.

Summary

Senate Bill 639, introduced by Senator Ashby, revises the regulations governing land use and development in the flood-prone areas of the Sacramento-San Joaquin Valley. It amends provisions that require local governments to adjust their zoning ordinances and development plans in accordance with the Central Valley Flood Protection Plan. One key aspect of the bill is its focus on enhancing flood protection standards, where cities and counties are mandated to achieve a specified urban level of flood safety, significantly altering the landscape for new developments within these high-risk zones.

Sentiment

The reception of SB 639 has been mixed. Proponents argue that it is a necessary step to ensure public safety and mitigate flood risks, especially given the historical vulnerability of the areas affected. They posit that achieving higher flood protection standards is essential for community safety and long-term sustainability. Conversely, critics express concern about potential delays in development, arguing that stringent requirements may stifle local growth and lead to economic setbacks, particularly in rapidly developing areas.

Contention

A notable point of contention lies in the bill's enforcement mechanisms, which mandate local governments to contribute financially to flood damage recovery if they approve developments without adequate safety assurances. This requirement reflects a broader discussion about the accountability of local governments in managing land use in high-risk areas and whether it is fair to impose these burdens amid growing pressures for development in California's urban regions. Such issues underscore the tension between enhancing safety protocols and fostering economic growth.

Companion Bills

No companion bills found.

Previously Filed As

CA SB586

Flood management: Sacramento-San Joaquin Valley.

CA SB1139

Flood protection: City of Sacramento: Sacramento Area Flood Control Agency.

CA AB1613

Sacramento-San Joaquin Delta: Salinity Intrusion in the Delta Act.

CA SB746

Energy conservation contracts: alternate energy equipment: green hydrogen: Tri-Valley-San Joaquin Valley Regional Rail Authority.

CA AB985

San Joaquin Valley Unified Air Pollution Control District: emission reduction credit system.

CA AB650

San Joaquin Valley Unified Air Pollution Control District: board.

CA AB350

Regional transportation plans: Sacramento Area Council of Governments.

CA AB1924

Sacramento Regional Transit District.

CA SB1068

Tri-Valley-San Joaquin Valley Regional Rail Authority: contracting: Construction Manager/General Contractor project delivery method.

CA ACR207

Sacramento Valley Ecosystem Awareness Week.

Similar Bills

CA SB586

Flood management: Sacramento-San Joaquin Valley.

CA SB1139

Flood protection: City of Sacramento: Sacramento Area Flood Control Agency.

CA SB901

Flood protection: City of West Sacramento flood risk reduction project.

CA AB838

Flood management: Mossdale Tract.

CA AB921

Flood protection: City of West Sacramento flood risk reduction project.

CA SB638

Climate Resiliency and Flood Protection Bond Act of 2024.