MOSCOW, ID – Hordemann Pond at Kiwanis Park has been temporarily closed by the City of Moscow due to an algae bloom that poses health risks to humans and animals.

Recent water testing confirmed the presence of cyanobacteria, or blue-green algae, which can produce harmful toxins. In response, all recreational activities at the pond—including fishing—are suspended until further notice.

Health officials warn that exposure to the algae can occur through ingestion, skin contact, or inhalation of water mist. Symptoms may include nausea, vomiting, headache, sore throat, dry cough, and in severe cases, pneumonia.

Children and pets are particularly vulnerable, and residents are urged to stay clear of the water and avoid contact with any visible algae, which currently appears as thick green mats along the shoreline.

The City will continue to monitor water conditions and reopen the pond once it is safe. For updates or questions, contact Parks and Facilities Manager David Schott at (208) 883-7098.

Public safety remains the city’s top priority.