OSHKOSH (WFRV) - Menominee Park beach in Oshkosh was closed on Tuesday because water samples showed high levels of E. coli. A red informational sign has been posted at the beach to inform citizens. This sign will remain posted until the next daily sample shows the conditions have improved. The cause for the high levels has not been determined at the time of this release. If you would like more information please contact the Oshkosh Parks Department at (920) 236-5080.