Golden mussels are an invasive species posing a serious threat to Folsom Lake, Lake Clementine, and connected waterways. Sierra Hills Marine provides professional vessel decontamination services to help boaters comply with local launch requirements and reduce the spread of aquatic invasive species. Golden mussels were first identified in California in late 2024 and represent the first known occurrence in North America. These organisms spread easily through standing water, bilges, ballast systems, livewells, and cooling systems, making proper decontamination critical.