Monthly Archive: September 2021

Friends of Green Lake VIRTUAL MEETING – September 28, 2021



YOU’RE INVITED!  PLEASE JOIN OUR ZOOM MEETING AT 7 PM NEXT TUESDAY 

AGENDA:

  • Introductions
  • Homeless Water Quality Impact Analysis Update
  • W. Green Lake Way N Opening and Design
  • Floating Wetlands Project Update
  • Lake Water Quality Monitoring Update
  • Treasurer’s Report
  • Other Business and Next Meeting Topics

Reminder – this meeting will be VIRTUAL – online via Zoom

Check Here for Zoom Instructions Before the Meeting!

We hope to see you online Tuesday September 28!

Green Lake Water Quality – September 19, 2021

Secchi Depth: 0.9 meters, (3.0 feet)
Water Temp: 17.5 C,  (63.5 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.

Green Lake Water Quality – September 12, 2021

Secchi Depth: 1.4 meters, (4.6 feet)
Water Temp: 20.0 C,  (68.0 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.

Green Lake Water Quality – September 5, 2021

Secchi Depth: 1.5 meters, (4.9 feet)
Water Temp: 20.5 C,  (68.9 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.

Green Lake Stewards Work Party – Sept 11, 2021

Green Lake Work Party Saturday morning  September 11, 2021, 9AM to 11AM

Hello Stewards…

Happy Fall! Hope this email finds you well.

We are having a work party, limited to 10 volunteers, this coming Saturday, September 11th, from 9 am to 11am.

  • Masks – We are no longer requiring volunteers wear masks for the entirety of all events. Mask protocol depends on if there are children under 12 present at your event. This protocol was developed from the City of Seattle Face Covering Policy, attached to this email.
    • Masks for events without children under 12 – Volunteers should arrive wearing a mask, and keep it on when gathering (introduction, assisting with planting, moving mulch together, etc.), but may take them off when working spread out more than 6 feet.
    • Masks for events with children under 12 – All volunteers should wear a mask for the duration of the event.
  • Bring your own work gloves.
  • Tools will be disinfected after use.
  • 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: Sep. 11, 2021
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 see you there!

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

Our mailing address is:
greenlakestewards@gmail.com

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.

See a presentation of the analysis from FOGL’s July meeting here. Or read the presentation in this post below: Read More »