GWMWater issued the warning this afternoon after monitoring detected algae levels above what is considered safe for recreational use.

The detection comes one week after high levels of blue-green algae were found in Green Lake.

Warning signs have been positioned at major recreational areas around the lake and will remain in place while the warning is current.

People can still boat, sight-see and enjoy other activities at the lake that do not involve direct water contact.

People who come into contact with affected water should wash affected skin immediately in clean water.

It is also recommended that people don’t use affected water for cooking, drinking, washing or showering. Boiling the affected water will not make it safe to use.

The lake will be regularly monitored by GWMWater.