Maury Island Open Space

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SITE STATUS - MARCH 2018

Ecology is conducting a public comment period for a cleanup plan and associated documents related to the Maury Island Open Space Site.  The plan specifies environmental standards, cleanup methods, and scheduling as part of an existing agreement between Ecology and King County. A future legal agreement will implement the cleanup work described in the plan.
 
Ecology will accept comments on these documents from April 9 through May 23 for review:
 

In addition, Ecology will be hosting a public meeting to present the cleanup plan and take questions and comments:

Wednesday, April 11, 2018
7-9PM
Vashon High School Theater
9600 SW 240th Street
Vashon, WA 98070

You can comment on these documents through May 23rd by following the links to the right, or with Ecology's e-comment system.

You can also find additional information about the Maury Island Open Space park on King County's webpage.


Maury Island Open Space cleanup area. Cleanup area is outlined in yellow. Click on the map to enlarge it.
Please click on the photo for a larger view

SITE DESCRIPTION

The site is approximately 266-acres in size and is located on the southeast side of Maury Island situated on a sea bluff above Puget Sound. A portion of this property was formally operated as a sand and gravel mine by CalPortland (previously known as Glacier NW). The County acquired this property in 2010 and it is currently open to the public for non-motorized recreation, including walking, jogging, hiking, mountain biking, and equestrian use.

The site contains Madrone forests and has adjacent marine habitat that supports endangered species such as chinook salmon, orca and bull trout. The site’s nearly one mile of shoreline is the longest undeveloped stretch of shore in King County. When combined with the County’s nearby 320 acre Maury Island Marine Park, the two properties represent the largest public holding of protected marine shoreline in all of Puget Sound.

Environmental investigations at the site have shown that contaminants exist throughout the site as a result of fallout from the former ASARCO Tacoma Smelter smokestack, and from former skeet shooting activities in the area.  Contaminants include arsenic, lead, and polycyclic aromatic hydrocarbons (PAHs) in the soil.  Concentrations exceed levels allowed under the state’s cleanup law, the Model Toxics Control Act (MTCA) and must be addressed.

For almost 100 years the Asarco company operated a copper smelter in Tacoma. Air pollution from the smelter settled on parts of King, Pierce, Kitsap, and Thurston counties, creating the Tacoma Smelter Plume. High concentrations of arsenic and lead from the smelter operations have been found in surface soils of Vashon - Maury Island, with properties closer to the former smelter having higher contamination. This site is within the Tacoma Smelter Plume but is being cleaned up on a separate track through the formal cleanup program, under the management of the Northwest Regional Office of the Toxics Cleanup Program. Ecology’s Southwest Regional Office is managing the overall Tacoma Smelter Plume cleanup. Ecology funds and manages the Soil Safety Program as part of cleaning up the Tacoma Smelter Plume.


 

Map showing site location as King County, WA SITE INFORMATION

Map

View Electronic Documents

Site Summary Report

Facility Site ID: # 2901216

Cleanup Site ID: 1532

Location:
Maury, King County

Status: Awaiting Cleanup   Get definitions of Status terminology

Contacts:
Cris Matthews
Site Manager
(360) 255-4379

Brad Petrovich
Project Planner and Public Involvement Coordinator
(425) 649-4486


Document Repositories:

Northwest Regional Office
3190 160th Ave SE
Bellevue, 98008-5452
(425)649-7190

Vashon Library
17210 Vashon Highway SW
Vashon Island, 98070
(206)463-2069
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