Benthic Cyanobacteria Identified in Seneca Lake

Geneva, N.Y. – Seneca Lake Pure Waters Association (Pure Waters) is asking the public to be aware of benthic cyanobacteria following a recent identification in Seneca Lake. Pure Waters recently received several photos of unusual debris in the lake near Lakeshore Landing, north of Sampson State Park. After consultation with the Finger Lakes Institute (FLI),...

Water Quality Update: August 21, 2026

GENEVA, N.Y. – As we head into the second half of August, Seneca Lake continues to have no confirmed harmful algal bloom (HAB) reports, while low lake levels remain an area of concern. Pure Waters continues to monitor these conditions closely as we move into late summer. Read the full interactive Water Quality Update for...

Water Quality Update: August 7, 2026

GENEVA, N.Y. – Seneca Lake continues to exhibit excellent water quality as we move through the height of the summer recreation season. According to the latest monitoring data collected on the evening of August 6th, surface temperatures and lake levels are fairly typical for early August, but dissolved oxygen levels measured unusually high. No HAB’s...