STOCKTON, CA – One year after the first detection of the invasive Golden Mussel near the Port of Stockton, Assemblymember Rhodesia Ransom (D-Tracy) is reaffirming her commitment to protecting California’s water infrastructure, agriculture, and Delta communities.
The Golden Mussel, a freshwater species native to South America, was first discovered in October 2024 in San Joaquin County. Since then, the mussel has continued to spread, threatening critical water systems and farmland.
Assemblymember Ransom pushed for the state of California to take action calling for a coordinated response and dedicated funding to stop the spread of the Golden Mussel. Back in August 2025, she sent a letter to Governor Newsom and state leadership urging them to action to address this growing threat. The letter called for policy updates and resources to protect water systems, agriculture, and recreational waterways used by boaters.
She was able to secure $20 million in next year's budget to combat the spread of invasive species and support local prevention efforts. AB 149 (Public Resources Trailer Bill) will address invasive mussel infestations, including the Golden Mussel. The funding supports local prevention, response, and public education efforts to contain the spread.
“This is one of the most serious emerging threats facing our region. Golden Mussels clog pumps, intake valves, and pipelines that supply water to millions of Californians, irrigate millions of acres of farmland, and impact the boaters who rely on the Delta for work and recreation. We cannot afford to wait for the damage to get worse before we act.”
-Assemblymember Rhodesia Ransom
