The California Department of Water Resources says it is ending its invasive mussel inspection program at Lake Oroville, the Thermalito Forebay and the Thermalito Afterbay. Effective Wednesday, DWR says watercraft inspections, decontamination services and seal checking at the Oroville facilities are no longer required. … The decision to implement an invasive mussel boat inspection program at DWR’s Oroville facilities in May 2025 was based on available information about how best to protect DWR infrastructure from golden mussel establishment. Additional analyses of golden mussel biology and habitat requirements, as well as an assessment of DWR’s Oroville infrastructure, have shown a lower risk of golden mussel establishment than was originally anticipated.

Other invasive species news:

• SFGate: Central Valley county declares emergency over ‘out of control’ invasive species
• CBS Sacramento (Calif.): San Joaquin County proclaims local emergency over invasive golden mussel
• Contra Costa News (Calif.): San Joaquin County Board of Supervisors proclaims local emergency over invasive golden mussel threat
• Edhat Santa Barbara (Calif.): Invasive nutria threaten California wetlands as state removes more than 7,800 rodents
• California Department of Water Resources: News release: DWR modifies its invasive mussel inspection program at Oroville