The San Joaquin County Board of Supervisors declared a local emergency Tuesday, April 28, as the invasive golden mussel continues to damage infrastructure and threaten water systems across the Sacramento-San Joaquin Delta. The board of supervisors approved the proclamation after hearing an update from county staff and members of an ad hoc committee formed to respond to the infestation, which was first detected at the Port of Stockton in October 2024. … [District 2 Supervisor Paul] Canepa said officials first thought the invasive golden mussel was a boating issue, but it became “way more than a boating issue.” He referred to the Delta as “ground zero” for the infestation in California, which now affects agriculture, municipal water systems and flood protection infrastructure. 

Other invasive species news:

• Active NorCal (Redding, Calif.): Lake Oroville just dropped its mandatory boat inspection requirement for invasive mussels
• FOX26 (Bakersfield, Calif.): San Joaquin County declares emergency over invasive golden mussel threat
• FOX11 (Los Angeles): California county declares emergency over ‘out of control’ invasive species
• FOX Weather: Local state of emergency declared in California over invasive species threat