Officials in Montgomery County are warning people to avoid contact with the water in Lake Needwood.
The water tested positive for a toxic substance produced by blue-green algae (cyanobacteria). Water that contains the toxin can cause severe liver damage if ingested.
Officials are asking residents to avoid all contact with the lake and to make srue pets do not swim in the water or drink the water.
Fishing and boating in the lake is allowed, but visitors are urged to use good hand cleaning practices prior to eating, drinking, or smoking.
If eating fish caught from Lake Needwood, visitors should eat only muscle meat and ensure that the fish is cooked properly.
For more information, call 240-372-9696.