Invasive golden mussels have spoiled boating season on the Sacramento-San-Joaquin Delta after East Bay Municipal Utility District announced in April the closure of boat launches in 2025 while the public utility studies the prevention and removal of the mollusks. EBMUD seeks to prevent one of the most common ways that golden mussels spread — in water held on vessels that is then expelled in other waterways –because if the mussels cross into EBMUD’s infrastructure, they could clog pipes, pumps, and lead to costly removals. … Biologists at EDMUD are concerned about containing golden mussels — the first invasive mussel found in Northern California — because they are far more adaptable than other invasive species in California’s waterways, able to survive in habitats with less calcium and higher water temperatures than other invasive species like quagga mussels.