JEFFERSON COUNTY, Ore. — The Oregon Health Authority (OHA) issued a recreational use health advisory Friday for Lake Billy Chinook after testing detected cyanotoxins at levels exceeding state recreational safety guidelines.
The advisory warns visitors to avoid swimming and other water activities that could result in swallowing water or inhaling water droplets in areas where harmful algae blooms are present. According to OHA, ingestion or inhalation of contaminated water poses the greatest health risk, while toxins are generally not absorbed through the skin. However, individuals with sensitive skin may experience irritation or a red, puffy rash after contact with affected water.
State health officials said the Recreational Use Values (RUVs) are designed to protect vulnerable populations, particularly children, who are more likely to swallow water while swimming and playing.
Despite the advisory, OHA said many outdoor activities remain safe at the reservoir, including fishing, camping, hiking, biking, picnicking, bird watching, canoeing and kayaking. Boating is also considered safe provided vessel speeds do not create excessive water spray that could be inhaled.
Drinking Water Concerns
Health officials emphasized that drinking water directly from bloom-affected areas of the lake can be especially dangerous. Cyanotoxins cannot be removed by boiling water, using standard camping filters or other common treatment methods.
Residents who draw household water directly from affected portions of the lake and do not rely on a public water system or private well are encouraged to use an alternative source of drinking and cooking water. OHA also noted that not all private treatment systems are effective at removing cyanotoxins.
Health Risks for People and Pets
Children and pets face a higher risk of exposure because of their size, activity levels and tendency to swallow water.
Exposure to cyanotoxins can cause symptoms ranging from nausea, vomiting, diarrhea and stomach cramps to more serious effects such as numbness, tingling, dizziness and shortness of breath. Severe symptoms may require medical attention.
Dogs are particularly vulnerable and can become seriously ill or die within minutes to hours after exposure. Pets may be poisoned by drinking contaminated water, licking algae-contaminated fur, or consuming algae mats along shorelines. Symptoms can include difficulty walking, lethargy, seizures and loss of appetite.
OHA recommends keeping dogs leashed and away from affected water and algae accumulations. Pet owners should seek immediate veterinary care if symptoms develop.
Fishing Advisory
Health officials also cautioned that fish caught in areas affected by cyanobacteria blooms may pose unknown health risks. OHA recommends avoiding consumption of fish from affected waters. Those who choose to eat fish caught in the area should remove the skin, fat and internal organs before cooking or freezing, as toxins are more likely to accumulate in those tissues. Fish fillets should also be rinsed thoroughly with clean water.
Anyone experiencing symptoms believed to be related to cyanotoxin exposure can contact OHA at 971-673-0482. Additional information about harmful algae blooms is available through OHA’s cyanobacteria monitoring program.
About the Author
Discover more from Right Now Oregon
Subscribe to get the latest posts sent to your email.
