OHA release - PORTLAND, Ore.—Oregon Health Authority (OHA) issued a recreational use health advisory Friday for Lake Billy Chinook due to the presence of cyanotoxins above Recreational Use Value (RUVs). The lake is in Jefferson County.  People should avoid swimming and other water activities with a high risk of swallowing water or inhaling water droplets in areas of the river, lake or reservoir where blooms are present. Ingestion or inhalation of water is the exposure route of concern. Toxins are not absorbed through the skin. However, those with skin sensitivities may get a puffy red rash.  OHA’s RUVs are designed to protect the most vulnerable, including children, who have a higher activity level and are more likely to swallow water while recreating.  OHA encourages people to visit Lake Billy Chinook and enjoy activities such as fishing, camping, hiking, biking, picnicking, bird watching, canoeing, and kayaking. Boating is safe as long as speeds do not create excessive water spray. Sprays could lead to the risk of inhaling cyanotoxins.