Threats and prevention efforts in Utah

Latest updates on mussels at Sand Hollow Reservoir

See the Sand Hollow control plan.

On May 21, 2010, a diver found a live, adult quagga mussel attached to the underside of one of the docks in Sand Hollow Reservoir. The Division immediately implemented a rapid-response strategy and containment order that mandated decontamination of all boats before they could leave the reservoir.

Divers and monitoring crews searched the reservoir for additional evidence of invasive mussels but found no sign of additional mussels or their veligers.

On June 16, 2010, the Division approved a control plan for containing and managing mussels at the reservoir. This control plan takes the place of the initial containment order and will be updated as biologists identify new management methods and strategies.