Melissa Blankenship (email@example.com), Boeing Plant 2 Project Manager, 503-326-5020
Julie Congdon (firstname.lastname@example.org), Community Involvement Coordinator, 206-553-2752
En Espaņol: Si desea hablar con alguien en Espaņol, llame a: Michael Ortiz (email@example.com)
Lower Duwamish Waterway Superfund Site Information
Early Action Cleanup Areas
Boeing Plant 2 is located on the east bank of the Duwamish Waterway at 7755 East Marginal Way South in Seattle and Tukwila, Washington.
Plant 2 was built in the late 1930s and was a major aircraft manufacturing facility during World War II. PCBs from large electricity generators and transformers were released at Plant 2 and into the LDW. A wide range of other hazardous chemicals are found in the soil, groundwater, and sediment, including metals (chromium, copper, cadmium), cyanide, petroleum products, and chlorinated solvents, such as trichloroethylene.
Plant 2 is a Resource Conservation and Recovery Act (RCRA) permitted hazardous waste facility. Boeing is under an EPA RCRA Order to investigate and study cleanup options for Plant 2. Boeing has already completed several interim measures to clean up or control high risk areas before the final cleanup, including: removing nearly a mile of PCB-contaminated joint caulk; cleaning up storm drains to reduce metals and PCBs; and treating contaminated groundwater.
When the Lower Duwamish Waterway became a Superfund site, several “hot spot” areas of sediment contamination were targeted for cleanup before the larger Superfund cleanup. Boeing Plant 2 is one of these hot spot cleanups. Three other hot spot cleanups are nearby: Jorgensen Forge to the south and Terminal 117 across the waterway. Slip 4 to the north, was cleaned up in 2012.
In August 2011, EPA released a Final Decision and Response to Comments for the cleanup of the sediments and shoreline at Boeing Plant 2. Boeing began implementation of the sediment cleanup in January 2013.
What is an early action? Early Action cleanup areas are parts of a Superfund site that EPA has determined may become a threat to people or the environment before the long-term cleanup for the site is completed.
- Corrective Measure Implementation Report - Duwamish Sediment Other Area and Southwest Bank Corrective Measure (PDF) (194 pp, 14.5MB) - June 2016
- Appendix A: Jorgensen Water Quality Pile Removal (PDF) (30 pp, 4MB)
- Appendix B: Construction Season 3 As-Built Drawings (PDF) (53 pp, 70MB)
- Appendix C: Backfill Quality Assurance/Quality Control (PDF) (6 pp, 113K)
- Appendix D: Transload Waste Tickets and Waste Profile (PDF) (307 pp, 9.6MB)
- Appendix E: Granulated Activated Carbon Breakthrough Monitoring (PDF) (4 pp, 55K)
- Appendix F: In Situ Water Quality Parameter Measurements (Excel) (4.8MB)
- Appendix G: Daily Water Quality Monitoring Forms (PDF) (295 pp, 21MB)
- Appendix H: Data Validation Reports (PDF) (39 pp, 322K)
- Appendix I: Qualitative Sample Characteristics and Chain-of-Custody Forms for Perimeter Monitoring (PDF) (446 pp, 37MB)
- Appendix J: Slip 4 Additional Data Collection (PDF) (150 pp, 6.5MB)
- Appendix K: Core Summary Logs, Photographs, and Chain-of-Custody Forms for Post-Construction Coring (PDF) (63 pp, 23MB)
- Appendix L: Post-Construction Surface Sediment Monitoring Year 0 (PDF) (150 pp, 4.7MB)
- Appendix M: Qualitative Sample Characteristics, Photographs, and Chain-of-Custody Forms for Jorgensen Backfill Sampling (PDF) (85 pp, 22MB)
- Appendix N: End of Construction Season Decontamination (PDF) (43 pp, 9MB)
- Appendix O: Archaeological Monitoring Program Synopsis - Construction Season 3: Dredging (PDF) (14 pp, 800K)
- 2012-2013 Construction Season Completion Report (PDF) (96 pp, 7.8MB) - October 2013
- Final Decision and Response to Comments for Boeing Plant 2 (PDF) (26 pp, 4.3MB) - August 2011
Given the presence of PCBs, cleanup of this site is also subject to the requirements of the Toxic Substances Control Act. For copies of documents relating to managing PCBs during site cleanup, contact Julie Congdon (firstname.lastname@example.org), at 206-553-2752.