2016 Green Lake alum treatment to begin on April 4

In order to preserve the health and safety of Green Lake, Seattle Parks and Recreation is treating the lake with aluminum sulphate or alum. Seattle Parks and Recreation awarded the contract for the alum treatment to HAB Aquatic Solutions. The contractor will close the parking lot north of the Green Lake Small Craft Center, 5900 West Green Lake Way N. to stage alum treatment equipment. Staging and treatment is anticipated to take two weeks beginning Monday, April 4 and be completed by Monday, April 18, 2016.

The 2016 alum treatment is intended to reduce phosphorus levels in the lake, limiting cyanobacteria (blue-green algae) blooms and improving recreational use of the lake. The alum treatment is applied from a barge on the lake.  The treatment is pumped from a truck staged in the parking lot through hoses that will run over the Green Lake path to the barge. These hoses will require a small ramp to allow Green Lake path users to travel safely over them.

The alum will be applied near the water surface and it removes phosphorus from the water column as it forms small clumps and settles. It then covers the bottom sediments to further prevent the internal release of phosphorus from the sediments. The alum treatment is effective immediately upon application.

Previous lake-wide alum applications in 1991 and 2004 effectively limited algae blooms and improved water quality. The alum treatment is expected to be effective for up to 10 years. The alum treatment plan was developed as part of the 2016 Green Lake Phosphorous Management Plan.

For more information about the project please visit http://www.seattle.gov/parks/projects/green_lake/alum.htm. If you have additional questions about the project please contact Chris Mueller, Seattle Parks and Recreation project manager at chris.mueller@seattle.gov or 206-684-0998.

 

Seattle Parks and Recreation moves forward with spring 2016 Green Lake alum treatment

Green Lake Alum Barge

Green Lake Alum Barge

Seattle Parks and Recreation and the Friends of Green Lake invite the community to learn about the Green Lake alum treatment at a public meeting on Tuesday, Feb. 23, 2016 from 7 to 8:30 p.m. at The Hearthstone, 6720 E. Green Lake Way N. At this meeting Seattle Parks and Recreation and Herrera Environmental Consultants will present information about the implementation of the alum treatment and answer community questions.

The 2016 alum treatment is intended to reduce phosphorus levels in the lake, limiting cyanobacteria (blue-green algae) blooms and improving recreational use of the lake. Previous lake-wide alum applications in 1991 and 2004 effectively limited algae blooms and improved water quality. In order to preserve the health and safety of Green Lake, Seattle Parks and Recreation is treating the lake with alum again this spring. The alum treatment plan was developed as part of the 2016 Green Lake Phosphorous Management Plan.

Seattle Parks and Recreation would like to thank the Friends of Green Lake for their continued stewardship of the lake and The Hearthstone for meeting accommodations. Friends of Green Lake (FOGL) is a nonprofit group in Seattle, whose mission is to ensure a healthy Green Lake for wildlife and recreation, for today and tomorrow. For more information please visit http://friendsofgreenlake.org/.

For more information about the project please visit http://www.seattle.gov/parks/projects/green_lake/alum.htm. If you have additional questions about the project please contact Chris Mueller, Seattle Parks and Recreation project manager at chris.mueller@seattle.gov or 206-684-0998.

If you would like to request special meeting accommodations or need an interpreter please contact Karen O’Connor at karen.o’connor@seattle.gov or 206-233-7929.

Pathway of Lights returns to Green Lake on Saturday, Dec. 12

Volunteers needed!

Seattle Parks and Recreation presents the Pathway of Lights at Green Lake on Saturday, Dec. 12, 2015 from 4:30 to 7:30 p.m., rain or shine.

Join thousands of families, friends and neighbors for this beloved Seattle tradition. Travel the 2.8-mile path around the lake, taking in the warm glow of the luminaria, music and refreshments. Visitors are encouraged to bring their own lights and candles to add to the ambiance.

Local musicians will perform at four sites around the lake:

  • The Green Lake Community Center on the east side
  • The Aqua Theater on the south side
  • The Bathhouse Theater (Seattle Public Theatre) on the north side
  • The Arch on the east of side of the community center/pool.

[Read more…]

Pathway of Lights glows across generations

Luminaries line Green Lake

Luminaries line Green Lake

The city is dark. The air is cold. But Green Lake Park is aglow.pathway of lights 2015

Since the 1980s, on the second Saturday of December, neighbors, families and tourists have celebrated the Pathway of Lights.

The idea was brought to Green Lake Community Center by a woman who was inspired after seeing a similar event on a trip to the southwestern U.S. The named was coined through a community contest.

In its inaugural year, luminaries encircled only the community center and the event was marked with horse-drawn hayrides. Throughout the years the event continued to expand. While guests used to light the luminaries by passing candles to one other, large community groups are now needed to help with set up. Local performers and artists are stationed around the lake to entertain walkers. [Read more…]

Freshwater fish contaminant monitoring and water quality testing to take place at Green Lake this month

The State Department of Ecology will be collecting fish from Green Lake during the week of Oct. 5, 2015 as part of its statewide Freshwater Fish Contaminant Monitoring Program. The work involves collecting fish using an 18 foot electrofishing boat and will likely be completed in two days. Fish collection will be done in late night hours.

Fish tissue will be analyzed for various contaminants such as: pesticides, PCBs, flame retardants, dioxins/furans, and mercury. Results from laboratory analyses will help state and local health departments assess risks to human health from eating contaminated fish. [Read more…]

Work to update Green Lake Park’s Meridian outfall vault

Please pardon our dust!

What?  Seattle Parks and Recreation, in cooperation with Seattle Public Utilities, is updating the outfall vault (the vault structure that lets water leave Green Lake and enter the stormwater system, located on the lake’s north side near Meridian Ave. N).  We will replace the vault lid to improve maintenance access, and install an internal weir gate to help regulate the lake’s level when needed. [Read more…]

Windermere Summer Splash comes to Green Lake Aug. 15

Green Lake

Green Lake

Come experience the Windermere Summer Splash at Green Lake from 9 a.m. to 4 p.m. on Saturday, Aug. 15!

In addition to featuring corporate crew races, the event will celebrate summer fun and healthy activities for families. There will be food vendors, children’s activities, entertainment and opportunities to experience rowing, canoeing, kayaking and paddle boarding.

The event is free and open to the public.

The Windermere Summer Splash is sponsored by Windermere Real Estate in partnership with George Pocock Rowing Foundation and Seattle Parks and Recreation. Most activities will be located on the southwest corner of the park near the Green Lake Small Craft Center.

For more information, please visit www.windermeresummersplash.com.

Green Lake Small Craft Center offers beginning sailing

This summer Seattle Parks and Recreation and Green Lake Small Craft Center are offering weeklong youth sailing camps. The center is located at 5900 W Green Lake Way N.

The camps will be held from noon-4 p.m. Mondays-Fridays, and sessions will be held from now until Aug. 14. Participants will learn sailing skills using the Topper boats available at Green Lake. Beginners will learn the basics of sailing, rigging, safety and boat handling. [Read more…]

Green Lake algae scum with toxins found; only harmful where scum is found

Toxic algae has been found in accumulated scum along the shores of Green Lake; however the lake is not closed and remains open to many activities.

King County Department of Natural Resources has been conducting weekly testing of water collected at the east and west swimming beaches at Green Lake as well as scum samples submitted through the State Toxic Algae Program. After each test, the information is reviewed by Public Health – Seattle & King County. Tests have revealed that the toxins are currently found in the scummy algae that accumulate and drift in some places along the lakeshore. Due to toxicity levels and algae movement, Public Health does not recommend closure at this time. [Read more…]

Green Lake Path lines to be painted on May 2

Visitors to Green Lake Park on Saturday, May 2 will see the Seattle Department of Transportation (SDOT) painting the center yellow line on the Green Lake pedestrian path. SDOT will begin work at 9 a.m. and anticipates the project will take 6 to 8 hours.  The lines on the Green Lake path define the rules of use for many thousands of people per year and help regulate congestion on the path. The City asks park visitors for their patience and cooperation during the painting.

Seattle Parks and Recreation contracted with SDOT for the work. This City collaboration provides a more efficient way to paint the path and will minimize the amount of time the path is closed to the community. Use of the SDOT truck will enable completion of this work in a shorter time frame than is typical and will provide more visible, long lasting lines. On Saturday, SDOT will provide a pilot truck for the paint truck and staff will tail the paint truck to warn pedestrians as the wet paint is applied.

The path will remain open and visitors using the path will be detoured around the painting project vehicles.

Parks and SDOT hope to engage in more collaborative projects in the future.

For more information on this project please contact Kenny Alcantara at 206-437-6818, Kenny.alcantara@seattle.gov or Dahvee Enciso 206-255-7759, Dahvee.enciso@seattle.gov.  For Green Lake Park information contact Patrick Merriam, Seattle Parks and Recreation at patrick.merriam@seattle.gov or 206-684-4561.