Harmful algae bloom found in Coos County lake
June 12, 2017
A health advisory was issued today for South Tenmile Lake, located 10 miles north of North Bend in Coos County.
Visual inspection indicates a blue-green algae bloom is present in the Coleman Arm of South Tenmile Lake, and Oregon Department of Environmental Quality is collecting and analyzing samples to confirm whether or not associated toxins are also present. If present, these toxins can be harmful to humans and animals.
People should avoid swallowing water while swimming or inhaling water droplets as a result of 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 South Tenmile Lake at this time is especially dangerous. Oregon 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 the affected area are advised to use an alternative water source because private treatment systems are not proven effective for removing algae toxins. However, public drinking water systems can reduce algae toxins through proper filtration and disinfection. If people connected to public water systems have questions about treatment and testing, they should contact their water supplier. If community members have questions about water available at nearby campgrounds, they should contact campground management.