EBMUD watersheds and reservoirs provide healthy habitats where fish and wildlife thrive. But they are also vulnerable to invasive species. The latest culprit proves significant threats can come in tiny packages.
The golden mussel, which is about the size of a quarter, was discovered in North America for the first time last October in the Sacramento-San Joaquin Delta. The mussel has not been detected in EBMUD waters, but we, and water managers throughout the state, will need to protect against and contend with its impact on ecosystems and infrastructure.
Golden mussels are efficient filter feeders that form dense colonies. They consume large quantities of microscopic aquatic plants and animals that are critical food sources for existing species and sport fish. Mussels can grow inside water conveyance pipes and clog intakes and valves – key components of EBMUD’s infrastructure.
What is EBMUD doing?
EBMUD has closed boat launches at Pardee, Camanche and San Pablo reservoirs to prevent the introduction of the golden mussel into the public water system. As we learn more about the mussels through increased environmental sampling, we will continue to coordinate with regional partners and the California Department of Fish & Wildlife.
We understand closures can have a significant impact on people who not only enjoy but make a living from water sports and recreation. But EBMUD must prioritize water supply protection. We appreciate your cooperation as we develop a wise path forward.
The golden mussel threat is an evolving situation. For updates, visit ebmud.com/stopmussels.