OHA release - PORTLAND, Ore.—Oregon Health Authority (OHA) issued a recreational use health advisory today for Pettit Reservoir due to a combination of factors, including elevated microcystin levels, that indicate a recreational health risk. A recreational use health precaution has been in place since June 24th due to the presence of a visible bloom. The reservoir is in Marion County.  People should avoid swimming and other water activities with a high risk of swallowing water or inhaling water droplets in areas of the lake 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 Pettit Reservoir 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.