A brown algae (diatom) bloom has begun along the Fox River both upstream and downstream of Fox Metro’s plant in Oswego. The picture below was taken from the Fox River near Sullivan Road, several miles upstream of Oswego.
As observed each of the past several summers, these brown algae blooms have become common and widespread throughout the Fox River mainstem. These blooms tend to build several times throughout the summer and then are flushed out of the system during each storm. When paired with mild winters, these blooms tend to continue throughout the summer.
Unlike some other kinds of algae, these diatoms are not known to be hazardous to human health or pets.
The brown algae bloom is not tied to any activities from Fox Metro’s operations. All permit limits have been met and the plant continues to operate normally.