After sampling Veterans’ Memorial Lake in Great Bend for toxic cyanobacteria, commonly called blue-green algae, the Kansas Department of Health and Environment has placed the lake under a “public health warning,” the KDHE announced Friday.KDHE samples publicly accessible bodies of water for algae when the agency is alerted to a potential algae bloom in Kansas lakes. When harmful blooms are present, KDHE, in cooperation with the Kansas Department of Wildlife, Parks and Tourism and other lake managers where appropriate, make such determinations. When under a warning, the body of water has high levels of toxic blue-green algae.