The Bear River Health Department (BRHD) has CLOSED the North Beach of the Mantua Reservoir (west side of the reservoir, just north of the boat deck) and issued a Warning Advisory for the rest of the reservoir on September 9, 2019, after samples collected in the reservoir showed high cyanobacteria cell-count densities. BRHD has posted signs around the reservoir to alert the public about the closure and warning advisory.

  • Do not swim or water ski in the area.
  • Avoid areas of algae scum when boating.
  • Keep animals away.
  • Do not ingest the water.
  • Clean fish well and discard the guts.

Algae may move or disperse depending on temperature, wind and weather. Contact the Utah Poison Control Center if you or your animals have unexplained sickness or signs of poisoning. 1.800.222.1222.

Visit habs.utah.gov for more information. To report an algae bloom call 801.536.4123.