LAKE STEVENS, Wash. — The city of Lake Stevens resumes an expensive treatment Monday to try to rid the lake of toxic materials.
In 2013, dangerous blue-green algae were found in the water. Since then, once a year, the city has been using aluminum sulfate to clear Lake Stevens of excess phosphorus. The algae need phosphorus to flourish.
The treatment costs $100,000.
The majority of the algae found at the lake are green and brown and not toxic, but some of the dangerous blue-green algae grow there, too.
While the levels aren't high enough to affect swimmers and boaters, the algae can poison dogs and other animals that drink from the lake.
Aquatechnex biologists will be treating the lake staring Monday, staging from the county boat ramp on the west shore.
The city of Lake Stevens will be posting signs explaining the issue, but there aren't any restrictions on or around the lake during the treatment process.
KIRO
