Taiga Wetlands – Green Lake Floating Ecosystem Demonstration Project

We are excited to announce that the Friends of Green Lake Floating Wetlands are on their way to Green Lake from Scotland. We are on schedule to assemble, plant, and anchor the wetlands in Green Lake on Saturday and Sunday of Memorial Day Weekend May 28 and 29, 2022. See the Taiga Wetlands Flyer to share with others about the project and come see us in action if you can in our quest to improve wildlife habitat and water quality in the lake using this innovative technology.

We need to raise approximately $10,000 to supplement our material costs and provide sufficient funds for long-term maintenance and monitoring. Please Give Big or Small to our project by contributing a tax-deductible donation using our Venmo account or mail us a check. GREEN LAKE NEEDS YOUR HELP!!

For more information see the Project Page.

Green Lake Stewards Work Party - Saturday May 14, 2022

Green Lake Work Party Saturday May 14, 2022, 9AM to 11AM

Hello Stewards…

Happy May! Hope this email finds you well.

We are having a work party for 20 volunteers on Saturday, May 14th, from 9 am to 11am.

  • Be Vaccinated: Participants, 12 years and above, are required to be vaccinated to participate in volunteer events. As most volunteer events are not staffed with City employees we are asking participants for voluntary compliance.
  • Masking is not required: Although not required, we continue to encourage all participants to arrive wearing a face covering, and keep it on during event introductions, when assisting other participants with tasks, during clean up and in any other scenario where 6-foot distancing cannot be maintained. Masks may be removed during work activities where participants are spread out and able to maintain at least 6-foot distancing.
  • Come Symptom Free: Please do not attend the event if you have been experiencing any of the following symptoms: cough, shortness of breath or difficulty breathing, fever, chills, shaking with chills, muscle pain, headache, sore throat, new loss of smell or taste or if anyone in your household is suspected or diagnosed with COVID-19.
  • Bring your own work gloves.
  • We will work separated with social distancing in mind.
  • RSVP at https://seattle.greencitypartnerships.org/event/19962/, if you are interested.

If you arrive late, follow the Event signs to find the work site:

Date: May 14, 2022
Time: 9 am to 11 am
Meet: Beside the Aqua Theater at the east end of the Small Craft Center (5900 West Green Lake Way North)

Dress for the weather and the dirty work, wear close-toed shoes and bring a bottle of water. Hope to see you there!

Dan Kujawinski (773) 629.2516 or danielkujawinski@gmail.com

Our mailing address is:

Green Lake Water Quality - May 15, 2022

Secchi Depth: 2.6 meters, (8.5 feet)
Water Temp: 15.0 C, (59.0 F)
Lake Water Quality is monitored weekly by Jeffrey Howard at East Green Lake from the T-dock near the Green Lake Community Center or from a boat at the deepest part of the lake. The weekly data are reported quarterly and uploaded to the King County Lakes website available here. Select “Green-1” and “View Data”. General lake information, water quality data, and reports are available here.

For continuous Green Lake Water Level and Temperature Gauge data tracked by King County, go to the King County Hydrologic Information Center website where you can search for both temperature (in C) and lake elevation. Here are instructions:
1. Click on either Water Temperature or State Only Gage to get a map of monitoring sites.
2. Click on the red dot at Green Lake
3. Click on View Graph. (The graph is currently being updated to improve visibility.) More data selections are listed left of the graph.

Spring 2022 Green Lake Trout Plant

A favorite family activity enjoyed at Green Lake over the years has been fishing.

On April 27, 2022 Green Lake was planted with 4,851 catchable-size trout weighing a total of 10,187 pounds. For lake trout stocking reports see the WSFW website: https://wdfw.wa.gov/fishing/reports/stocking/trout-plants?lake_stocked=GREEN+LK+%28KING%29&county=&species=&hatchery=&region=   This is a typical amount that is planted in the lake each spring, with the exception of an unusually high amount of 45,000 pounds in 2014 due to a surplus of large hatchery trout that year.

While trout are fun to catch, trout stocking may increase the amount of algae (measured as chlorophyll-a) in the lake due to their consumption of algae-eating zooplankton and their additional nutrients, as indicated by this graph. For a detailed study on the effects of trout stocking on algae blooms in Washington lakes see the report by Herrera Environmental Consultants: https://www.herrerainc.com/publications/trophic-cascade-effects-on-algae-blooms-in-washington-state/

Green Lake Beach Bacteria Monitoring

Studies Show Water Quality Impacts of Homeless Waste Disposal at Green Lake

Statistical analysis of weekly fecal bacteria data shows a significant increase in levels at West Beach but not East Beach in the past 2 years. This finding suggests that the increase may have been due to human waste disposal in the lake since West Beach is down current of homeless encampments and RVs, while East Beach is not near encampments and was closed to swimming and more populated by geese in this period. Human waste pathogens and floating hypodermic needles pose a risk to swimmers on the west shore of the lake.


Friends of Green Lake VIRTUAL Meeting - Tuesday May 24, 2022


Please join our ZOOM MEETING at 7 pm on Tuesday May 24 to to hear about our exciting plans to install INSTALL THE TAIGA WETLANDS ON MAY 28-29 for our Floating Wetland Project, funded in part by the Seattle Neighborhood Matching Fund.


  • Floating Wetland Project:

  • Transport and assembly team plan

  • Planting team plan

  • Anchor team plan

  • Bird houses and maintenance

  • Permit update

  • Budget and fundraising update

  • FOGL Board Member Nominations

  • Water quality status

  • Treasurers report

  • Additional items of interest

Check here for Zoom Instructions before the meeting.

Rob Zisette
FOGL President
206-787-8262 office
206-930-6585 cell

Meeting Minutes Are Now Online

Minutes for previous meetings are being posted in the blog, retroactively. Click here for a minutes-only archive.