OPEKA– The Kansas Department of Health and Environment (KDHE) has issued Public Health Warnings for Marion Reservoir, Marion County; and Memorial Park Lake (a.k.a. Veterans Lake), Great Bend due to toxic blue-green algae populations above minimum public safety levels. Logan City Lake in Phillips County remains on the warning list, bringing the total to three so far in 2013. KDHE samples recreational bodies of water for blue-green algae when the agency is alerted to a potential algae bloom.