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Invasive mussels

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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

Water 2015 results 2014 results 2013 results 2012 results DWR Region
Bear Lake (spans Utah-Idaho border) Pending Not detected Not detected Not detected Northern
Bettridge Creek1 Pending Not detected Not detected Not detected Northern
Big Sandwash Reservoir Pending Not detected Not detected Not detected Northeastern
Big Springs Fish Hatchery (Ute Tribe)1 Pending Not detected Not detected Not tested Northeastern
Bottle Hollow Reservoir (Ute Tribe) Pending Not detected Not detected Not tested Northeastern
Boulder Creek (West Fork)1 Pending Not detected Not detected Not detected Southern
Bountiful Pond1 Pending Not detected Not detected Not tested Northern
Calder Reservoir Pending Not detected Not detected Not tested Northeastern
Cleveland Reservoir Pending Not detected Not detected Not tested Southeastern
Colorado River (Potash boat launch) Pending Not detected Not detected Not tested Southeastern
Cottonwood Reservoir Pending Not detected Not detected Not tested Northeastern
Currant Creek Reservoir Pending Not detected Not detected Not detected Northeastern
Cutler Reservoir Pending Not detected Not detected Not detected Northern
Deer Creek Reservoir2 Pending Suspected Not detected Not detected Central
Dougherty Basin Reservoir1 Pending Not detected Not detected Not detected Southern
East Canyon Reservoir Pending Not detected Not detected Not detected Northern
Echo Reservoir2 Pending Not detected Not detected Not detected Northern
Eagan State Fish Hatchery1 Pending Not detected Not detected Not detected Southern
Electric Lake Pending Not detected Not detected Not detected Southeastern
Fairview Lake Pending Not detected Not detected Not detected Central
Fish Lake Pending Not detected Not detected Not detected Southern
Fisheries Experiment Station State Fish Hatchery1 Pending Not detected Not detected Not tested Northern
Flaming Gorge Reservoir
(spans Utah-Wyoming border)2
Pending Not detected Not detected Not detected Northeastern
Fontenelle Reservoir, Wyoming
(impoundment of the Green River)2
Pending Not detected Not detected Not detected Northeastern
Fountain Green State Fish Hatchery1 Pending Not detected Not detected Not detected Central
Glenwood State Fish Hatchery1 Pending Not detected Not detected Not detected Southern
Green River (Ouray Bridge) Pending Not detected Not detected Not detected Northeastern
Gunlock Reservoir Pending Not detected Not detected Not detected Southern
Gunnison Bend Reservoir Pending Not detected Not detected Not detected Central
Gunnison Reservoir Pending Not detected Not detected Not detected Central
Hunter Power Plant (holding pond) Pending Not detected Not detected Not tested Southeastern
Hunter Power Plant (Snow Lake) Pending Not detected Not detected Not detected Southeastern
Huntington North Reservoir Pending Not detected Not detected Not detected Southeastern
Huntington Power Plant (raw water pond) Pending Not detected Not detected Not detected Southeastern
Hyrum Reservoir Pending Not detected Not detected Not detected Northern
Joes Valley Reservoir Pending Not detected Not detected Not detected Southeastern
Johnson Creek1 Pending Not detected Not detected Not detected Northern
Jones Hole National Fish Hatchery1 Pending Not detected Not detected Not detected Northeastern
Jordanelle Reservoir Pending Not detected Inconclusive Not detected Central
Kamas Fish Hatchery1 Pending Not detected Not detected Not detected Northern
Keg Springs Pending Not detected Not detected Not detected Northern
Kolob Reservoir1 Pending Not detected Not detected Not detected Southern
Koosharem Reservoir Pending Not detected Not detected Not detected Southern
Lake Creek (Millard County)1 Pending Not detected Not detected Not tested Southern
Lake Powell (spans Utah-Arizona border)3 Pending Infested (quagga) Infested (quagga) Detected (quagga) Southern
Lee Kay State Fish Hatchery1 Pending Not detected Not detected Not tested Central
Leland Harris Ponds1 Pending Not detected Not detected Not tested Central
Loa State Fish Hatchery1 Pending Not detected Not detected Not detected Southern
Mammoth State Fish Hatchery1 Pending Not detected Not detected Not detected Southern
Mammoth Reservoir Pending Not detected Not detected Not detected Southeastern
Manning Meadow Reservoir1 Pending Not detected Not detected Not detected Southern
Mantua Reservoir Pending Not detected Not detected Not detected Northern
Mantua State Fish Hatchery1 Pending Not detected Not detected Not detected Northern
Matt Warner Reservoir Pending Not tested Not detected Not tested Northern
Midview Reservoir (Ute Tribe) Pending Not detected Not detected Not tested Northeastern
Midway State Fish Hatchery1 Pending Not detected Not detected Not tested Central
Millsite Reservoir Pending Not detected Not detected Not detected Southeastern
Minersville Reservoir Pending Not detected Not detected Not detected Southern
Navajo Lake Pending Not detected Not detected Not tested Southern
Navajo Reservoir
(spans NM/CO border- flows into San Juan River)2
Pending Detected Not detected Detected Outside Utah
New Castle Reservoir Pending Not detected Not detected Not detected Southern
Newton Reservoir Pending Not detected Not detected Not detected Northern
Ninemile Reservoir Pending Not detected Not detected Not detected Central
North Creek (North Fork)1 Pending Not detected Not detected Not detected Southern
Otter Creek Reservoir Pending Not detected Not detected Not detected Southern
Ouray National Fish Hatchery1 Pending Not detected Not detected Not detected Northeastern
Palisades Reservoir Pending Not detected Not detected Not detected Central
Panguitch Lake Pending Not detected Not detected Not detected Southern
Pelican Lake Pending Not detected Not detected Not detected Northeastern
Piute Reservoir Pending Not detected Not detected Not detected Southern
Pine Lake Pending Not tested Not detected Not tested Southern
Pine Valley Reservoir Pending Not tested Not detected Not tested Southern
Pineview Reservoir2 Pending Not detected Not detected Not detected Northern
Pole Creek1 Pending Not detected Not detected Not detected Southern
Quail Creek Reservoir Pending Not detected Not detected Not detected Southern
Ranch Creek1 Pending Not detected Not detected Not detected Southern
Recapture Reservoir Pending Not detected Not detected Not detected Southeastern
Red Fleet Reservoir Pending Not detected Not detected Not detected Northeastern
Red Knolls Pond1 Pending Not detected Not detected Not detected Northern
Rockport Reservoir2 Pending Not detected Not detected Not detected Northern
Rocky Mountain Nat'l Park, Colo. — Grand Lake (flows into Colorado River)4 Pending Detected Not detected Not detected Outside Utah
Rocky Mountain Nat'l Park, Colo. — Lake Granby (flows into Colorado River)4 Pending Detected Not detected Not detected Outside Utah
Rocky Mountain Nat'l Park, Colo. — Shadow Mountain Lake (flows into Colorado River)4 Pending Detected Not detected Not detected Outside Utah
Rocky Mountain Nat'l Park, Colo. — Willow Creek Reservoir (flows into Colorado River)4 Pending Detected Not detected Not detected Outside Utah
Rosebud Ponds1 Pending Not detected Not detected Not detected Northern
Salina Creek1 Pending Not detected Not detected Not detected Central
Sand Hollow Reservoir Pending Not detected Not detected Inconclusive Southern
Santa Clara River (Confluence with Virgin River)1 Pending Not detected Not detected Not detected Southern
Scofield Reservoir Pending Not detected Not detected Not detected Southeastern
Skunk Creek1 Pending Not detected Not detected Not detected Southern
Springville State Fish Hatchery (east)1 Pending Not detected Not detected Not tested Central
Springville State Fish Hatchery (west)1 Pending Not detected Not detected Not tested Central
Starvation Reservoir Pending Not detected Not detected Not detected Northeastern
Steinaker Reservoir Pending Not detected Not detected Not detected Northeastern
Strawberry Fish Trap1 Pending Not detected Not detected Not tested Central
Strawberry Reservoir2 Pending Not detected Not detected Not detected Central
Ten Mile Creek1 Pending Not detected Not detected Not tested Southern
Tropic Reservoir Pending Not detected Not detected Not tested Central
Upper Enterprise Reservoir Pending Not detected Not detected Not detected Southern
Utah Lake Pending Not detected Not detected Not detected Central
Virgin River (Cedar Pocket Campground in the Virgin River Gorge in Arizona)1 Pending Not detected Not detected Not tested Outside Utah
Virgin River (Utah-Arizona state line) Pending Not detected Not detected Not detected Southern
Wahweap State Fish Hatchery1 Pending Not detected Not detected Not detected Southern
Whiterocks State Fish Hatchery1 Pending Not detected Not detected Not detected Northeastern
Willard Bay Reservoir2 Pending Not detected Not detected Not detected Northern
Willow Springs Pond (west Box Elder County)1 Pending Not detected Not detected Not detected Northern
Yuba Reservoir Pending Not detected Not detected Not detected Central

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

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