County To Treat Hicks Lake For Harmful Algae; Public Meeting March 22nd


Photo courtesy King County Parks.

King County announced Wednesday (March 9) that it plans to begin treatment at White Center’s Hicks Lake, “in an effort to curb potentially harmful algae blooms,” and is holding a public meeting on Tuesday, March 22, at the White Center Library

At the meeting the county plans on sharing information on a proposed use of aluminum sulfate to treat the lake.

The meeting is set for 6:30-8 p.m. at the White Center Library, located at 11220 16th Ave. SW, Seattle.

“King County is developing a plan to help improve water quality in White Center’s Lake Hicks (sic) so that people and pets are safe from potentially harmful algae blooms in the small lake,” reads a statement from the county.

The Washington State Department of Ecology has identified Hicks Lake, located in Lakewood Park, at 4th Ave SW and SW 112th Street, as having “impaired” water quality because of excessively high phosphorus concentrations, which promote frequent algae blooms in the lake.

These algae blooms have produced biotoxins that are potentially harmful to people and pets that come into contact with the water. As a result of the algae blooms, warning signs have been posted along the Hicks Lake shoreline during the recreational season to alert people of the potential danger of contact with the water.

To address this ongoing water quality problem, King County has received a permit to treat the lake in May with aluminum sulfate to lower phosphorus concentrations in the water and “cap” the phosphorus-rich sediments. A similar action was taken at Lake Hicks in 2005.

More information about lake stewardship in King County is available at http://www.kingcounty.gov/environment/wlr/sections-programs/science-section/lake-stewardship-program.aspx.


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