Public Health News

Posted on: January 26, 2018

Bluegreen Algae Blooms Continue But Toxins Decline


January 26, 2018

For Immediate Release

Contact:  Michael Dawson

Jefferson County Community Health

(360) 385-9444 x301

Bluegreen Algae Blooms Continue But Toxins Decline

Port Townsend, WA – A bloom of bluegreen algae was found by Jefferson County Public Health (JCPH) at Lake Leland in January, but test results did not show detectable levels of toxins. Warning signs have been posted at the boat ramp and fishing pier. At Anderson Lake, no visual traces were left of a previous severe bloom which kept the lake closed for much of 2017. However, laboratory testing did show low levels of the potent toxin anatoxin-a. Since the toxin level of 0.2 micrograms per liter is below the Washington State recreational guideline of 1 microgram, JCPH has recommended that Anderson Lake State Park post the lake with Warning signs. A Warning sign indicates that, while the lake is open, it is recommended that people avoid areas of scum, keep children and pets out of the water and clean fish well and discard the skin and guts. Washington State Parks has informed JCPH that the Anderson Lake State Park gate will be open Fridays through Sundays in winter. A bloom appeared on Gibbs Lake on Friday, January 26. JCPH will test it for toxins and for now the lake is posted with Caution signs.

JCPH has monitored local lakes for bluegreen algae seasonally since 2007. The 2018 monitoring season has begun and testing results will be posted on the JCPH website at If you observe a bloom in a Jefferson County lake, please report it by calling (360) 385-9444. For fishing seasons and regulations see the Washington Department of Fish and Wildlife website Information on visiting Gibbs Lake County Park and the Lake Leland Campground is available at


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

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