State and local health officials close Cow Creek Reservoir near Chinook Testing indicates high levels of potentially dangerous algae
September 25, 2019
CHINOOK – Blaine County health officials reported Thursday that a test performed for cyanotoxins associated with a blue-green algae bloom at Cow Creek Reservoir has returned with high results. As a result, state and local health officials recommend the reservoir, southwest of Chinook, be closed to all recreation and that pets and livestock be kept away from these waters. Closure signs have been posted at access points.
On Sept. 12, the Blaine County sanitarian collected eight water samples from various places on the reservoir and from Cow Creek near the inlet and outlet. The samples were...