Boeing Developmental Center
9725 E Marginal Way S, Tukwila, WA 98108-4040

PUBLIC COMMENT PERIOD MAY 23, 2019-JUNE 21, 2019

We want to hear from you!

We are overseeing cleanup of contamination at the Boeing Developmental Center site located at 9725 East Marginal Way South, Tukwila, WA 98108.

Submit comments at:  bit.ly/BDCcomments

Boeing Developmental Center- Período de Comentario, Orden Acordada

The following documents are available for review and comment:

Agreed Order: Legal agreement with Boeing to conduct a remedial investigation (RI) to determine the location and type of contamination and a feasibility study (FS) to evaluate cleanup methods to meet the requirements of the state cleanup law. 

    Exhibit A: Facility location, see Site Background
    Exhibit B: Facility boundary, see Site Contamination
    Exhibit C: Scope of work and schedule
     
Interim Action Work Plan (Exhibit D) : Describes the ongoing cleanup work.

State Environmental Policy Act (SEPA) Checklist:
Identifies and evaluates if there are significant adverse environmental impacts by the proposed interim cleanup activities.

SEPA Determination of Nonsignificance (DNS): Concludes that Boeing’s interim cleanup activities will have no significant adverse impacts on the environment.

Public Participation Plan:  Creates a process to communicate with and receive feedback from the public about this cleanup.   

You can also review the documents at:

South Seattle College, Georgetown Campus, Building C
6737 Corson Avenue South, Seattle, WA 98108

Facility Hours:
         Mon – Thurs, 8:00 a.m. – 9:00 p.m.; Fri 8:00 a.m. – 4:30 p.m.
Parking:
         Free street parking available, Campus parking, $3

Directions and campus map  

What happens next?

We will consider all comments received and may change the documents based on your comments. After that, the Agreed Order will be signed by all parties.  Boeing will proceed with the Interim Action while it conducts the remedial investigation and drafts the feasibility study. 

Why this cleanup matters

The Environmental Protection Agency (EPA) added the 5-mile stretch of the Duwamish River that flows north into Elliot Bay to the Superfund National Priorities List in 2001. The Boeing Developmental Center is one of the sites to be cleaned up there under the EPA's Resource Conservation and Recovery Act. Contaminants in the soil and groundwater around the river pose a risk to human health and the environment. These contaminants can find their way into the river through storm runoff and other pathways.

This site is part of Ecology’s Lower Duwamish Waterway source control efforts because the site has the potential to contribute pollution to the Lower Duwamish Waterway (LDW) Superfund Site.  The sediments (mud) in the river contain a wide range of contaminants due to decades of industrial activity and runoff from urban areas. EPA is leading efforts to clean up the river sediments. We are leading efforts to control sources of contamination from the surrounding land. The long-term goal is to avoid recontamination of the river bottom and restore water quality in the river.

Public comment period fact sheet


REQUEST ADA ACCOMODATION OR INFORMATION IN OTHER LANGUAGES

Accommodation Requests: To request ADA accommodation including materials in a format for the visually impaired, call Ecology at 425-649-7000 or visit https://ecology.wa.gov/accessibility. People with impaired hearing may call Washington Relay Service at 711. People with speech disability may call TTY at 877-833-6341.

Para información acerca de la limpieza de la contaminación en el Boeing Developmental Center, llame al 425 649 7253 y espere en la línea por un intérprete.

Để biết thông tin về công tác làm sạch ô nhiễm tại Trung Tâm Phát Triển Boeing (Boeing Development Center), hãy gọi 425 649 7253 và xin chờ thông dịch viên.


COMMUNITY OPEN HOUSE JUNE 18, 2019, SOUTH SEATTLE COLLEGE

Ecology, EPA and the Duwamish River Cleanup Coalition (DRCC/TAG) are holding a community open house on June 18 at the South Seattle College in Georgetown 

Ecology is partnering with EPA and the Duwamish River Cleanup Coalition (DRCC/TAG) to hold a Community Open House on June 18 from 5:30-7:30 pm at the South Seattle College in Georgetown (6737 Corson Avenue South, Seattle, 98108).

During this meeting, you can learn about the current work that Ecology and EPA are doing to clean up contamination in and near the Lower Duwamish Waterway. Topics will include:

• Information on the following cleanup sites that have upcoming public comment periods:  Boeing Developmental Center, Boeing Plant 2, Snopac Property and 8801 E Marginal Way

• Overview of the overall sediment cleanup (led by EPA) and Source Control (led by Ecology)

• How to participate in upcoming public comment periods

The meeting will be open house format where you can talk with members from Ecology and EPA working on individual sites. Snacks will be available and families are welcome!


Boeing Developmental Center location map
Please click on the photo for a larger view

SITE BACKGROUND

Boeing Developmental Center included multiple laboratories and test facilities supporting airplane and missile research and development.  Boeing used chemicals and generated wastes from manufacturing processes such as electroplating, chemical milling, conversion coating, cleaning parts and photographic processing. Because of those operations, chemicals contaminated soil and groundwater at the site.

Since 1999, Boeing has been cleaning up three areas on the property under Ecology’s Voluntary Cleanup Program. Boeing removed more than 1,400 tons of soil and treated groundwater. Since 2002, they added non-toxic substances to the groundwater to help natural bacteria breakdown the contamination. Boeing will continue their cleanup under the Agreed Order until we approve a cleanup plan for the entire site and it is implemented.


Boeing Developmental Center facility map identifing areas being cleaned up
Please click on the photo for a larger view

SITE CONTAMINATION

The following chemicals are now or were in the past found in soil and groundwater:

Petroleum products (diesel, gasoline, heavy oil).

Volatile organic compounds (tetrachloroethylene, trichloroethylene, vinyl chloride, benzene, ethyl benzene, toluene, xylene).

Semi-volatile organic compounds (naphthalene).

Metals (arsenic, copper, cadmium).

Polychlorinated biphenyls.


 

Map showing site location as King County, WA SITE INFORMATION

Map

View Electronic Documents

Cleanup Site Details Report

Facility Site ID: # 2101

Cleanup Site ID: 5059

Location:
Tukwila, King County

Status: Cleanup Started   Get definitions of Status terminology

Comment Period:
MAY 23, 2019 - JUNE 21, 2019

Contacts:
Byung Maeng
Site Manager
(425) 649-7253

Thea Levkovitz
Public Involvement Coordinator
(425) 649-7286


Document Repositories:

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