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Posted on: April 17, 2020

Anderson Lake High in Toxins

andersonlakeclosed

April 17, 2020
For Immediate Release 
Contact: Michael Dawson
Water Quality Manager
Jefferson County Public Health
(360) 385-9444

 

Port Townsend – An early bloom of cyanobacteria (also known as blue-green algae) has led to high levels of the potent nerve toxin anatoxin-a in Anderson Lake. In a water sample taken on Monday, April 13, laboratory analysis revealed a toxin concentration of 14.8 micrograms per liter, which is above the Washington State criteria of 1 microgram per liter. Washington State Parks staff have posted “Danger – Lake Closed” signs at access points to the park alerting visitors of the potential hazards. Jefferson County Public Health (JCPH) recommends individuals follow the Governor’s “Stay Home, Stay Healthy” order, and all State Parks remain closed through at least May 4, including Anderson Lake State Park. Anderson Lake was not stocked with trout by Washington Department of Fish and Wildlife this year, and recreational fishing is closed.

JCPH is in the process of completing an Anderson Lake Management Plan to identify the underlying cause of the recurring highly toxic cyanobacteria blooms, and determine potential strategies for mitigation. This project is funded in part through a grant from the Washington State Department of Ecology.

To check the status of Jefferson County Lakes and learn more about toxic cyanobacteria monitoring, consult the JCPH website at www.jeffersoncountypublichealth.org/723/Lake-Status or call (360) 385-9444.


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Jefferson County Public Health
Always Working for a Safer and Healthier Community


        




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