This site maps live E. coli and water-temperature results for more than 400 beaches monitored by the Wisconsin Department of Natural Resources, across Lake Michigan, Lake Superior and inland lakes. Every beach is labelled with how recent its last test was, so a reading from years ago is never shown as an all-clear.
It needs JavaScript to draw the map. The underlying data is published by the Wisconsin DNR beach monitoring program.
Built by Jan Wodnicki.