The following is a list of tested waterbodies in Utah and their current status. Please help us fight the mussels by decontaminating your boat.
View a list of UTM coordinates for samples taken at many of these waterbodies. Map of dreissena mussel monitoring sites.
See status definitions
Lake Powell and Deer Creek Reservoir are currently the only Utah waters that require decontamination.
1 Hatchery, wild egg site, wild fish production site, and wild fish transfer site inspections are conducted by Utah Division of Wildlife Resources to assess presence/absence of quagga and zebra mussels, New Zealand mudsnail, didymo, Eurasian and northern watermilfoil, Asian clam and non-native crayfish.
2 Sampled by U.S. Bureau of Reclamation.
3 Sampled independently by Utah Division of Wildlife Resources, U.S. Bureau of Reclamation and Glen Canyon National Recreation Area (National Park Service)
4 Sampled by Colorado Division of Parks and Wildlife.
How UDWR discovers and manages water bodies affected by quagga or zebra mussels