SeaTac Airport PFAS
Facility Site ID:
51357821
Cleanup Site ID:
17061
This site has confirmed or suspected contamination that could potentially harm people and the environment. It is in the state cleanup process under the Model Toxics Control Act.
See the Site Details report at left or the documents below to learn more about this site.
Ecology works to clean up contaminated properties throughout the state. Cleanups are construction projects that remove, treat, or contain potentially harmful substances.
Documents 5
Legal 2
| Document Title | Document Date | Document Type |
| SeaTac Airport PFAS - Liability Waiver Signed | 2/18/2025 | Early Notice Letter |
| SeaTac Airport PFAS - Combined Early Notice Letter & Preliminary Determination of Liability | 1/28/2025 | Early Notice Letter |
Technical Reports 3
| Document Title | Document Date | Document Type |
| SeaTac Airport PFAS - SHARP Report | 6/12/2024 | SHARP Report |
| SeaTac Airport PFAS - Figures and Tables | 6/12/2024 | Site Specific Technical Document - Other |
| SeaTac Airport PFAS - Port of Seattle Site Discovery Letter Re PFAS Contamination | 9/27/2023 | Site Specific Technical Document - Other |
There may be more documents related to this site. To obtain documents not available electronically, you will need to make a public records request.
Places to see print documents
-
Northwest Regional Office15700 Dayton Ave NShoreline, 98133Please schedule an appointment to view print documents at this location.
Contaminants 1
| Contaminant Type | Soil |
Groundwater |
Surface Water |
Air |
Sediment |
Bedrock |
|---|---|---|---|---|---|---|
| Halogenated Organics - Per- and polyfluoroalkyl substances (PFAS) | C | C |
- S
- Suspected
- C
- Confirmed Above Cleanup Levels
- B
- Below Cleanup Levels
- RA
- Remediated-Above
- RB
- Remediated-Below
- R
- Remediated
This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.