Harmful algae blooms have been reported in Canandaigua, Seneca, Cayuga and Keuka lakes, according to the state Department of Environmental Conservation.
On Friday, the DEC said 15 bodies of water were added that week to the statewide list, which now has 68 bodies of water listed with harmful algae blooms.
DEC officials report on its HAB notification page these confirmed sightings:
CANANDAIGUA: HABs have been confirmed with high toxins on large, localized areas of the lake, which borders Ontario and Yates counties.
CAYUGA: HABs have been confirmed in large, localized locations. This lake borders Seneca, Cayuga and Tompkins counties.
KEUKA: HABs have been confirmed in large, localized areas of this lake, which borders Yates and Steuben counties.
SENECA: HABs have been confirmed with high toxins in widespread, lakewide locations. This lake borders Ontario, Seneca, Schuyler and Yates counties.
A confirmed bloom is when water sampling results have confirmed the presence of a cyanobacteria HAB which may produce toxins or other harmful compounds.