A week before boating is set to return, state officials announced they had intercepted a vessel carrying invasive golden mussels at Folsom Lake this week, the first such discovery since inspections began last month under a new emergency program aimed at protecting the reservoir’s water infrastructure. California State Parks staff found a live infestation of golden mussels clinging to a boat Tuesday during a screening at Beals Point. The vessel, which had recently been in the Sacramento-San Joaquin Delta, was quarantined immediately to prevent the highly invasive species from contaminating the lake, state officials said Wednesday. … The lake has been closed to trailered and motorized boats since April 14 under a joint closure by State Parks and the U.S. Bureau of Reclamation, which operates Folsom Dam.

Related articles:

• CBS Sacramento (Calif.): Invasive golden mussels found attached to boat during Folsom Lake inspection
• YubaNet (Nevada City, Calif.): Golden mussels discovered during boat inspection at Folsom Lake
• KCRA (Sacramento, Calif.): Golden mussels found on boat during inspection at Folsom Lake