Harmful Algal Bloom Advisory Issued for Blackwater River arm of Smith Mountain Lake in Bedford, Franklin, and Pittsylvania Counties, VA

Public Advised to Avoid Water Contact in Affected Areas

(Roanoke, Va.) – The Blackwater River arm of Smith Mountain Lake in Bedford, Franklin, and Pittsylvania counties are experiencing a harmful algal bloom (HAB). The public is advised to avoid contact with the water until algal concentrations return to acceptable levels. The reported blooms have produced blue/green discoloration and algal scums that should be avoided. Some harmful algae, called cyanobacteria, can cause skin rash and gastrointestinal illnesses, such as upset stomach, nausea, vomiting and diarrhea. The area to avoid can be seen on an interactive Harmful Algal Bloom map. A status report containing the advisory area may be viewed at Smith Mountain Lake – Blackwater River HAB Status Report June 6, 2023.