The Oregon Health Authority issued a recreational use health advisory today for Cullaby Lake due to the presence of a cyanobacteria (harmful algae) bloom and the toxins they produce. Cullaby Lake is located just off Highway 101 between Astoria and Seaside in Clatsop County.
Water monitoring has confirmed the presence of cyanobacteria and the toxins they produce in Cullaby Lake. The cyanotoxin concentrations found can be harmful to humans and animals.
People should avoid swimming and high-speed water activities such as water skiing or power boating in areas where blooms are identified. Although toxins are not absorbed through the skin, people who have skin sensitivities may experience a puffy, red rash at the affected area.
Drinking water directly from Cullaby Lake at this time is especially dangerous. OHA public health officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
People who draw in-home water directly from Cullaby Lake are advised to use an alternate water source because private treatment systems are not proven effective for removing algae toxins. If community members have questions about water available at nearby campgrounds, they should contact campground management.