King County logo

Hidden Lake 0207SB

For algal toxin data please visit the State Toxic Algae web page and follow the “Find Lake” menu.

NOTE: Hidden Lake is sampled through a contract with the City of Shoreline and may have a different sampling frequency. ALGAL TOXIN samples are only collected during bloom events and submitted through the Washington State Toxic Algae Program. For more information visit the Washington State Toxic Algae Program database website.
Washington Toxic Algae Program database