Concerning Blue-Green Algae Found At New Hogan Lake

Calaveras County, CA — The Calaveras Environmental Health Department is warning residents to be on the lookout for a certain type of algae when swimming or recreating at New Hogan Lake.

A blue-green algae bloom was located by the State Water Resources Control Board by using a newly developed screening tool that analyzes satellite imagery. While the bloom is subsiding, county officials say it is important for everyone who enjoys the lake to have a basic understanding about potential health effects of certain types of algae.

Common health consequences for humans that come into contact with blue-green algae, also known as cyanobacteria, include rashes, allergy like reactions, a runny nose or sore throat. If ingested in large amounts, symptoms can include stomach pain, diarrhea, vomiting, dizziness and liver damage. Young children, and dogs, are most at risk because they are more likely to consume water while wading or swimming.

Calaveras County Health Officer, Dr. Dean Kelaita, says, “While no serious cases of local residents developing serious complications or illness from blue-green algae have been reported to the local health department, those who use the lake should be aware of the threat to avoid becoming sick.”

Click here for information on how to identify cyanobacteria.