EPA RCRA ID: WAD009256819
On this page:
- Cleanup Status
- Facility Description
- Contaminants at this Facility
- Institutional/Engineer Controls
- Enforcement and Compliance
- Related Information
- Contacts for this Facility
Cleanup Status
The Boeing Plant 2 facility is being cleaned up because hazardous wastes resulting from airplane parts manufacturing dating back to the 1930s have been found in soil and groundwater in certain upland areas.
Corrective action activities at this facility are being conducted by The Boeing Company (Boeing) under the Resource Conservation and Recovery Act (RCRA) pursuant to an administrative order on consent with EPA (see "Site Documents" below).
The in-waterway sediment at the facility was cleaned up and habitat restoration completed in 2015. Boeing continues to monitor the quality of the sediment as required by the post-construction monitoring plan. The most recent Post-Construction Surface Sediment Monitoring Report is available in the site documents below.
In the upland area of the facility, Boeing has completed several interim soil cleanups and installed stormwater treatment systems to prevent contaminants from entering the Lower Duwamish Waterway. In July 2022, EPA issued the Final Corrective Action Decision for the remaining uplands areas of the facility. The corrective measures required by this decision will address soil and groundwater contaminated with metals, solvents, PCBs, and other contamination. Corrective measures will include dechlorination, excavation, and more, and will take several years to complete. In addition to cleanup technologies, long- and short-term groundwater monitoring as well as engineering and institutional controls will be used to ensure protection of human health and the environment.
Cleanup Actions or environmental indicators characterizing the entire facility are shown below. It is not intended as an extensive list of milestones/activities. This listing, and all the data on this page, come from EPA’s RCRAInfo and are refreshed nightly to this page. For this table and the Cleanup Activities Pertaining to a Portion of the Facility table that follows, a blank in the Status column could mean the action either has not occurred or has not been reported in RCRAInfo.
Cleanup Activities Pertaining to the Entire Facility
| Action | Status | Date of Action |
|---|---|---|
| Human Exposure Under Control Human Exposure Under Control(CA725) | ||
| Groundwater Migration Under ControlGroundwater Migration Under Control (CA750) | ||
| Remedy DecisionRemedy Decision (CA400) | ||
| Remedy ConstructionRemedy Construction (CA550) | ||
| Ready for Anticipated Use Ready for Anticipated Use (CA800) | ||
| Performance Standards AttainedPerformance Standards Attained (CA900) | ||
| Corrective Action Process TerminatedCorrective Action Process Terminated (CA999) |
For definitions of the terms used, hover over or click on the term.
Cleanup Activities Pertaining to a Portion of the Facility
| Action | Area Name | Date of Action |
|---|
For definitions of the terms used, hover over or click on the term.
Facility Description
Link to a larger, interactive view of the map.
The Boeing Plant 2 facility is located on the east bank of the Lower Duwamish Waterway at 7755 East Marginal Way South in Seattle and Tukwila, Washington. It occupies approximately 107 acres of industrial, topographically flat land covered by buildings and paved areas. Most buildings are slab-on-grade with utilities below-grade.
The uplands portion of Plant 2 is divided into northern and southern sections by an arterial road, 16th Avenue South, which services the 16th Ave South Bridge, also known as the South Park Bridge, which spans the Lower Duwamish Waterway.
The facility historically has specialized in manufacturing aluminum alloy, steel alloy, and titanium alloy parts for airplanes. Plant 2 was built on farmland in the late 1930s and became a significant manufacturing facility during World War II. Major aircraft manufacturing continued until the late 1960s, with significant related manufacturing activities thereafter until the late 1990s. More recently, Plant 2 has shifted to only limited manufacturing in the 2-10 Building to support research and development.
Contaminants at this Facility
PCBs were released at Boeing Plant 2 and migrated into the adjacent Lower Duwamish Waterway. A wide range of other hazardous constituents, including metals, cyanide, petroleum products, and chlorinated solvents, are found in soil and groundwater at the facility.
Institutional and Engineering Controls at this Facility
Engineering controls include pavement or buildings over the entire facility, except for the unpaved shoreline area, to reduce infiltration and prevent direct contact with underlying soils. Institutional controls will include restrictive covenants and a pavement and subsurface management plan that will ensure that the selected remedies remain protective during routine non-cleanup-related construction activities.
Institutional and Engineering Controls help ensure human exposure and groundwater migration are under control at a cleanup facility. Where control types have been reported by states and EPA in EPA’s RCRAInfo, they are shown below. Not all control types are needed at all facilities, and some facilities do not require any controls. Where there are blanks, the control types may not be needed, may not be in place, or may not be reported in RCRAInfo.
Are Controls in Place at this Facility?
|
Control(s) Type |
Control(s) in Place? |
Areas Subject to Control(s) |
Documents available on-line: |
|
|---|---|---|---|---|
|
Institutional ControlsNon-engineering controls used to restrict land use or land access in order to protect people and the environment from exposure to hazardous substances remaining in the site/or facility. (CA 772) |
Informational DevicesInformational Devices (ID) |
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Governmental Controls (GC) |
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Enforcement and Permit Tools (EP) |
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| Proprietary ControlsProprietary Controls (PR) | ||||
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Engineering ControlsEngineering measures designed to minimize the potential for human exposure to contamination by either limiting direct contact with contaminated areas or controlling migration of contaminants. (CA 770) |
Groundwater ControlGroundwater Control (GW) |
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Non-Groundwater |
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For definitions of the terms used, hover over or click on the term.
Enforcement and Compliance at this Facility
EPA’s Office of Enforcement and Compliance Assurance (OECA) provides detailed historical information about enforcement and compliance activities at each RCRA Corrective Action Site in their Enforcement and Compliance Historical Online (ECHO) system.
RCRA Enforcement and Compliance Reports from ECHO
Related Information
For more information about this facility, visit:
- RCRA information in EPA’s Envirofacts database
- Information about this facility submitted to EPA under different environmental programs (EPA’s Facility Registry Services)
- Alternative Names for this facility (EPA’s Facility Registry Services)
- Cleanups in My Community (interactive map to see EPA cleanups in context with additional data and lists for downloading data)
- Search RCRA Corrective Action Sites
Site Documents
Contacts for this Facility
Janette Knittel (knittel.janette@epa.gov), Project Manager, 206-553-0483.