Invasive golden mussels approaching the region
Summary
The board affirmed for another cycle that the invasive Golden Mussel infestation in the Delta remains a local emergency — keeping the county eligible for response resources.
At a glance
- Total mentions
- 4
- Last 30 days
- 1
Discussed at 1 meeting in the last 60 days; most recently Nov 3, 2026.
Impact analysis
No general fund impact.
Boaters, water agencies and Delta ecosystems protected from the invasive mussel's spread.
Mentions & discussions (4)
Board of Supervisors — November 3, 2026
The board affirmed for another cycle that the invasive Golden Mussel infestation in the Delta remains a local emergency — keeping the county eligible for response resources.
Board of Supervisors Meeting — August 25, 2026
Supervisors Villegas and Allen's ad hoc subcommittee reported on the invasive golden mussel emergency, a port tour showing infestation expected to worsen, and $6 million in state funding for Delta counties. Two major regional plans — the Yolo Bypass Comprehensive Study and the Bay Delta water quality plan — are under staff review.
Board of Supervisors — July 21, 2026
The Board declared a local emergency over golden mussels, an invasive species found at the Port of West Sacramento that clogs pipes and pumps and threatens Delta water infrastructure and flood control.
Board of Supervisors — July 7, 2026
Golden mussels, an invasive species established in the Delta, are moving upriver toward Yolo County. County staff are coordinating with West Sacramento, water agencies and reclamation districts, and may bring an action item to the Board soon.
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